MICRO SWITCH Hazardous Area Switches BX | BX2 Series 002306 Issue 8 Datasheet FEATURES DESCRIPTION The MICRO SWITCH BX/BX2 Series are designed for applications in hazardous or explosive environments requiring a rugged, durable switch virtually anywhere in the world. To comply with explosion-proof switching requirements, the flame path within the switch housing is designed to contain and cool escaping hot gases and fumes that could cause an explosion outside of the switch. Regardless of where the equipment or machinery is designed, built, or installed, BX and BX2 Series products carry global agency coverage. Honeywell offers two versions of the BX series switch: the standard BX Series features an aluminum housing, while the BX2 series features a 316L stainless steel housing. The stainless steel housing adds additional resistance against corrosion in applications exposed to aggressive, caustic agents, as well as those often present in chemical processing plants, off-shore/near-shore sites, and other hazardous areas. Both products are weather sealed for outdoor use and designed for explosive gas/dust environments. All operating heads of the BX/BX2 Series are field adjustable at 90 increments. DIFFERENTIATION * Top-of-the-line environmental sealing combined with Honeywell expertise for hazardous location package design provides the right product for the right application * Exclusive teller tab on levers ensures proper torque. When the tab cannot be moved, the lever is tight enough to prevent slippage Sensing and Internet of Things * Approvals: UL, CSA, ATEX (CE), IEC Ex, INMETRO (Brazil), NEPSI Ex (China), KOSHA (select listings - Korea), and EAC (formerly GOST-R, Russia) * Sealed to IP67, NEMA 1, 3, 4, 6, 13 * Industry-leading breadth of products * Two rugged designs are available: aluminum or corrosionresistant stainless steel head and body * A diaphragm seal between head and body provides an extra measure of protection * Optional fluorocarbon seals are available for harsh chemical or higher temperature environments * Secure head-to-body retention with the head in any one of four positions 90 apart * Self-lifting pressure plate terminals saves wiring time. * Wide variety of non-sparking actuators, switch options, and head styles for design flexibility * Rotary actuated heads are field adjustable for CW actuation, CCW actuation, or both to reduce inventory * Choice of silver or gold-plated contacts APPLICATIONS * * * * * * * * * * Grain elevators Control valves and actuators Off-shore and on-shore drilling Pipelines Petrochemical and chemical plants Water treatment plants Paint booths Conveyors (above-ground) Pulp and paper Hazardous waste handling VALUE TO CUSTOMERS * Around-the-world use in hazardous areas with international approvals: UL, CSA, ATEX (CE), IEC Ex, INMETRO, KOSHA, NEPSI Ex (China), and EAC (formerly GOST-R, Russia) * Industry-leading breadth of product offering that includes: BX (aluminum housing) and BX2 (stainless steel housing) limit switches for hazardous locations * 303 stainless steel operating shaft on sintered bronze bearing for enhanced mechanical life and operational reliability PORTFOLIO Honeywell offers a wide range of limit switches in different size packages and hazardous environments. These limit switches include the BX/BX2 Series, CX Series, EX Series, LSX Series, GXS Series, and 14CE100 Series. To view the entire product portfolio, click here. MICRO SWITCH Hazardous Area Switches, BX | BX2 Series Figure 1. MICRO SWITCH BX Series Features and Options The MICRO SWITCH BX2 limit switch has similar features, except a 316L stainless steel head and body without epoxy coating. Sintered, bronze bearings enable longer operating life and increase resistance in corrosive environments Field adjustable operating head (CW and CCW, CW or CCW) matches switch to application Boss-and-socket head design for secure head-to-body retention Dual bearings deliver enhanced mechanical life Rugged aluminum head and body are phosphate treated and epoxy coated External ground screw for agency compliance. Internal ground screw provided on all products for agency compliance 0.5 in, 0.75 in or 20 mm conduit options 2 sensing.honeywell.com Twin shaft seals for an extra measure of environmental protection Flurosilicone seals extend operating temperature down to -40 C [-40 F] Two flame paths: one in the cover-housing threads; another between the switch cavity and head MICRO SWITCH Hazardous Area Switches, BX | BX2 Series Figure 2. MICRO SWITCH BX Series Product Nomenclature F BX Switch Type BX Series Aluminum Hazardous Area Limit Switch BX2 Series Stainless Steel Hazardous Area Limit Switch 3K Body/Basic Switch Code Head Style* Conduit Threads 1/2 or 3/4 NPT** A* Side rotary; momentary 1A 20 mm B Top rotary; momentary 1E ** see Body/Basic Switch Code column C* Top pin plunger, momentary 3E 3NC/1NO, slow acting, 3/4 -14 NPT gold-plated contacts 1NC/1NO, snap action, 1/2 -14 NPT gold-plated contacts NOTE: if 1/2 NPT or 3/4 NPT conduit is desired, no code is necessary. Leaveblank. D* Top roller plunger, momentary 3K 1NC/1NO, snap action, 1/2 - 14 NPT E* Side pin plunger; momentary If conduit code "4" in this column is selected, conduit in Body/Basic Switch column does not apply. F* 4 - 3NC/1NO, slow acting, 3/4 -14 NPT Actuator Options Actuator Modification Fixed O 0.75 in x 0.25 in W 1 CW rotation roller, 1.5 in radius, 1A * nylon front mount 2 CCW rotation roller, 1.5 in radius, 1C * nylon back mount 3 Right-oriented actuator head assembly in W nylon roller. 2A * 0.25 front mount 4 Left-oriented actuator head assembly 2C * 0.25 in W nylon roller. 4K 1NC/1NO, snap action, 3/4 - 14 NPT 5 Head assembled with actuator to mounting surface 2J Side roller plunger; momentary 4L 2NC/2NO, snap action, 3/4 - 14 NPT 6 Roller perpendicular to mounting surface 2K H* Side rotary, momentary; low PT, low torque 4M sequential, 3/4 - 14 NPT 2NC/2NO, snap action, 8 Roller parallel to mounting surface 3S J Wobble stick 4N K Cat whisker L* Fixed O 0.75 in x 0.25 in W Adjustable, O 0.75 in x Adjustable, O 0.75 in x back mount Adjustable, O 1.0 in x 0.5 in W nylon roller, front mount Adjustable, O 1.0 in x 0.5 in W nylon roller, back mount Yoke, O 0.75 in x 0.25 in W nylon rollers, same side, back mount 4M 4S 2NC/2NO, snap action, center neutral, 3/4 - 14 NPT 2NC/2NO, snap action, 3/4 -14 NPT gold-plated contacts Side rotary; sequential, momentary 4T 2NC/2NO, snap action, sequential, 3/4 -14 NPT, gold-plated contacts 5C M* Side rotary; central neutral, momentary 4U 2NC/2NO, snap action, center neutral, 3/4 -14 NPT, gold-plated contacts 7A Plastic wobble stick N* Side rotary; maintained 2NC/2NO, snap action, 1/2 - 14 NPT 8A Cat whisker, 5.5 in P* Side rotary, momentary; low PT and DT R* Side rotary, momentary; low torque V Top pin plunger, adjustable, momentary W Side pin plunger, adjustable, momentary 7L 7N 7S 7T 7U 5A Hub rod, aluminum Offset, O 0.75 in x 0.25 in W nylon roller, back mount Offset, O 0.75 in x 0.25 in W nylon roller, front mount 2NC/2NO, snap action, center neutral, 1/2 - 14 NPT 2NC/2NO, snap action, 1/2 -14 NPT gold-plated contacts 2NC/2NO, snap action, sequential,1/2 -14 NPT, gold-plated contacts 2NC/2NO, snap action, center neutral, 1/2 -14 NPT, gold-plated contacts Not available with conduit code 4. * BX2 stainless steel "head styles" and "actuators" available To order fluorocarbon versions, insert the additional letter C in the appropriate places in the standard catalog listing, as shown below: BXA3K standard, side-rotary switch BXAC3K completely FC-sealed version of BXA3K Sensing and Internet of Things 3 MICRO SWITCH Hazardous Area Switches, BX | BX2 Series Table 1. Specifications Characteristic Parameter Product type MICRO SWITCH hazardous area limit switches Actuators Side pin plunger Side rotary Top pin plunger - adjustable Wobble - cat whisker Side pin plunger - adjustable Side rotary maintained Top roller plunger Wobble - plastic rod Circuitry 1NC 1NO SPDT snap action, double break 2NC 2NO DPDT snap action, double break 2NC 2NO DPDT snap action, double break, sequential 2NC 2NO DPDT snap action, double break, center neutral 3NC 1NO slow action, double break Electrical 10 A thermal Single and double pole: AC15 A600; DC13 R300 (see table on page 5) Housing material Aluminum (BX) or Stainless Steel (BX2) Termination types 0.5 in - 14 NPT conduit 0.75 in - 14 NPT conduit 20 mm conduit Housing type BX/BX2 non-plug-in Sealing NEMA 1, 3, 4, 6, 13; IP67 Operating temperature* Standard with fluorosilicone seals: -40 C to 70 C [-40 F to 158 F] Optional with fluorocarbon seals: -12 C to 70 C [10 F to 158 F] ATEX/IEC Ex protection class II 2 GD, Ex d IIC T6 Gb, Ex tb IIIC T85C Db UNSPSC code 302119 UNSPSC commodity 302119 Switches and controls and relays Side roller plunger Top pin plunger Top rotary * Reference operating head styles on page 6 for exceptions. Table 2. Agency Certifications ATEX (CE)2 Europe CSA , UL, or cULus3 Canada, USA IEC Ex1 International KOSHA Korea NEPSI EX2 China INMETRO2 Brazil EAC4 Russia (formerly GOST-R) Conduit BX Series (aluminum) M20 * NPT * BX2 Series (stainless steel) M20 NPT 1 * * * * * * * * * * * * * * * * * * * * * * * * * ATEX & IEC Ex: II 2 GD; Ex d IIC T6 Gb; Ex tb IIIC T85C Db; Ta -40 C to 70 C or -12 C to 70 C (dependent on seal material) NEPSI Ex: GYJ111016 3 CSA, cUL, UL: NEMA 7 (Gas) Div 1&2, Class I, Groups B, C, & D; NEMA 9 (Dust) Div 1&2, Class II, Groups E, F, & G 4 Russia Custom Union Certification per RU.0001.1105; 1Ex d IIC T6 Gb X, Ex tb IIIC T85C Db 2 4 sensing.honeywell.com MICRO SWITCH Hazardous Area Switches, BX | BX2 Series MICRO SWITCH BX and BX2 Series Electrical Ratings 10 A continuous carry; ac Volts; Pilot Duty: AC15, A600 Electrical Rating AC15, A600 Circuitry Vac SPDT DPDT Amps at 0.35 Power Factor Make Amps at 0.35 Power Factor Break 120 60 6 240 30 3 480 15 1.5 600 12 1.2 Switch Contact Styles, Double Break SPDT (1NC/1NO) Circuitry Vdc Make & Break Amps Inductive Make & Break Amps Resistive DC13, R300 SPDT DPDT 120 0.25 0.8 240 0.15 0.4 MICRO SWITCH BX and BX2 limit switches are capable of the following low voltage dc loads Circuitry Vdc Amps Inductive Amps Resistive SPDT, DPDT 24 10 10 SPDT Double Break DPDT Double Break Center Neutral (SPDT each direction) Pole 1 operates CCW; Pole 2 operates CW MICRO SWITCH BX and BX2 Series Electrical Ratings dc Volts; Pilot Duty: DC13, R300 Electrical Rating DPDT (2NC/2NO) NOTE: Same polarity each pole Low Temperature Limits For all MICRO SWITCH BX/BX2 styles, the upper temperature limit is 70 C [158 F], while the lower temperature limit is per the table below. MICRO SWITCH BX/BX2 Standard (Fluorosilicone) Operating Head Styles BXA, BX2A - Side Rotary Momentary -40 C [-40F] Optional (Flurocarbon Sealed) -29 C [-20 F] * -12 C [10F] * * BXB - Top Rotary -1 C [30 F] * BXC, BX2C - Top Pin Plunger * * BXD, BX2D - Top Roller Plunger * * BXE, BX2E - Side Pin Plunger * * BXF, BX2F - Side Roller Plunger * * BXH, BX2H - Side Rotary, Low Pretravel and Torque * * BXJ - Wobble Stick * * BXK - Cat Whisker * * BXL, BX2L - Side Rotary, Sequential Operation * * BXM, BX2M - Side Rotary, Center Neutral * * * BXN, BX2N - Side Rotary, Maintained BXP, BX2P - Side Rotary, Low Pretravel * * * * BXR, BX2R - Side Rotary, Low Torque * BXV - Top Adjustable Plunger * * BXW - Side Adjustable Plunger * * Sensing and Internet of Things 5 MICRO SWITCH Hazardous Area Switches, BX | BX2 Series Fluorocarbon Sealed Switches (optional) Fluorocarbon (FC)-sealed switches have an FC o-ring between the threaded cover and body. Rotary types have an extra FC seal on the operating shaft, while plunger versions have FC boot seals. They are for use in applications where the environment includes fire-resistant synthetic fluids, synthetic fluids, water-based fluids, and petroleum-based fluids. The additional FC seals also promote longer operating life for rotary-actuated BX/BX2 switches in applications where the temperatures are normally elevated. To order, insert the additional letter C in the appropriate places in the standard catalog listing, as shown below: BXA3K standard, side-rotary switch BXAC3K FC-sealed version of BXA3K BX2A3K standard, stainless steel side-rotary switch BX2AC3K Fluorocarbon-sealed version of BX2A3K MICRO SWITCH BX/BX2 Series Operating Heads* SIDE ROTARY: Heads may be positioned in any one of four positions, 90 increments. All are momentary action except TOP ROTARY: Available levers provide greater versatility. Heads may be positioned in any one of four positions, 90 maintained head (BXN/BX2N Series). increments. All are momentary action. BXA/BX2A - Standard: 60 minimum overtravel, 15 maximum pretravel, 5 (single pole) and 7 (double pole) maximum differential travel. BXR/BX2R - Low operating torque: 60 minimum overtravel, 15 maximum pretravel, 0.19 Nm [1.7 in lb] maximum operating torque. BXN/BX2N - Maintained contact: Maintained on counterclockwise rotation and reset on clockwise rotation, and vice versa. BXP/BX2P - Low differential: 68 minimum overtravel, 9 maximum pretravel, 3 (single pole) and 4 (double pole) maximum differential travel. BXH/BX2H - Low torque, low differential travel: 68 minimum overtravel. Features low operating torque and narrow differential travel. BXL/BX2L - Sequential operation: 48 minimum overtravel. Delayed action between operation of two poles. BXM/BX2M - Center neutral: 57 minimum overtravel. One pole operates on the clockwise rotation, and the other pole on the counterclockwise rotation. *BX Series epoxy-coated zinc heads are shown for illustration. BX2 Series heads are 316L stainless steel. 6 sensing.honeywell.com BXB: With 100 minimum overtravel. Various levers that fit side rotary shafts may be used on the top rotary shaft. Switch is suitable when increased overtravel is required. TOP PLUNGERS: Available with 4,83 mm [0.19 in] minimum overtravel. Top pin plungers are offered in pin plunger, an adjustable plunger, and a roller plunger. All are momentary action. BXC/BX2C - Top pin plunger: A copper alloy plunger for in-line actuating motion. Oil-tight seals on plunger and between the operating head and housing keep out coolant, dust, and chips. BXD/BX2D - Top roller plunger: A copper alloy roller plunger is adjustable to 90 angles to accept cam or slide operation from any of two directions. Boot seal on the plunger. BXV - Adjustable top pin plunger: A copper alloy adjustable plunger provides easy application and saves on installation time. The operating points of the switch can be adjusted from 52,8 mm to 59,3 mm [2.085 in to 2.335 in]. Seals are the same as the pin plunger. MICRO SWITCH Hazardous Area Switches, BX | BX2 Series MICRO SWITCH BX/BX2 Series Operating Heads SIDE PLUNGERS: Available with 4,83 mm [0.19 in] minimum overtravel. Side plungers are offered in pin plunger, adjustable pin plunger, and a roller plunger. All are momentary action. BXE/BX2E - Side pin plunger: A copper alloy plunger for actuating motion inline with the plunger travel. Actuating head may be rotated in any of four positions, 90 apart. A boot seal on the plunger and a gasket seal between the head and housing keep out coolant, dust, and chips. WOBBLE LEVER ACTUATING HEADS: Heads come with either a Delrin(R) plastic rod or copper alloy cat whisker. Any movement of the lever (except pull) will actuate the switch. BXK - Plastic rod: Recommended where possible scratching or marring by the actuator is to be avoided. BXF/BX2F - Side roller plunger: A copper alloy roller plunger fits close quarters under cams and slides. The head may be rotated in any of four positions, 90 apart. The roller can be turned vertical or horizontal to the switch. Boot seal on plunger. BXW - Adjustable side pin plunger: Has the same features of the side plain plunger plus the means to adjust the operating points of the switch from 41 mm to 47,4 mm [1.615 in to 1.865 in]. BXJ - Cat whisker: Copper alloy actuator designed for low operating force applications. Sensing and Internet of Things 7 MICRO SWITCH Hazardous Area Switches, BX | BX2 Series SIDE ROTARY * MICRO SWITCH BX/BX2 SERIES ORDER GUIDE/RECOMMENDED LISTINGS BXA /BX2A * Standard CW/CCW Momentary 15 1-2 3-4 3-4 1-2 75 0 10 Pretravel * 15 max. Diff. travel (SPDT) * 5 max. Diff travel (DPDT) * 7 max. Overtravel * 60 min. Oper. torque * 0,45 Nm [4 in-lb] max. *Oper. temp * -40 C to 70 C [-40 F to 158 F] 15 1-2/5-6 3-4/7-8 3-4/7-8 1-2/5-6 0 8 75 BXP /BX2P * Low Differential CW/CCW Momentary Housing Material Contacts (snap-action) Contact Material Conduit Listing Aluminum 1NC-1NO Silver 0.5-14 NPT BXA3K Aluminum 1NC-1NO Gold plate 0.5-14 NPT BXA3E Aluminum 1NC-1NO Silver 0.75-14 NPT BXA4K Aluminum 1NC-1NO Silver 20 mm BX4A3K Aluminum 1NC-1NO Gold plate 20 mm BX4A3E Stainless Steel 1NC-1NO Silver 0.5-14 NPT BX2A3K Stainless Steel 1NC-1NO Silver 20 mm BX24A3K Aluminum 2NC-2NO Silver 0.75-14 NPT BXA4L Aluminum 2NC-2NO Silver 20 mm BX4A4L Aluminum 2NC-2NO Gold plate 0.5-14 NPT BXA7S Aluminum 2NC-2NO Gold plate 0.75-14 NPT BXA4S Stainless Steel 2NC-2NO Silver 0.75-14 NPT BX2A4L Housing Material Contacts (snap-action) Contact Material Conduit Listing Aluminum 1NC-1NO Silver 0.5-14 NPT BXP3K Aluminum 2NC-2NO Silver 0.75-14 NPT BXP4L Stainless Steel 2NC-2NO Silver 0.75-14 NPT BX2P4L Stainless Steel 2NC-2NO Silver 20 mm BX24P4L 9 1-2 3-4 3-4 1-2 75 0 6 Pretravel * 9 max. Diff. travel (SPDT) * 3 max. Diff. travel (DPDT) * 4 max. Overtravel * 66 min. Oper. torque * 0,45 Nm [4 in-lb] max. *Oper. temp * -40 C to 70 C [-40 F to 158 F] 9 1-2/5-6 3-4/7-8 3-4/7-8 1-2/5-6 0 5 75 Contact closed n; Contact open o Actuating head is factory set for CW and CCW actuation. Easily field adjusted for CW or CCW per instructions included with switch. NOTE: Same polarity each pole. * Operating temperature range for standard fluorosilicone sealed switch. For optional fluorocarbon sealed switch, see temperature table, page 8. To order a fluorocarbon sealed version, insert the additional letter "C" in the standard catalog listing, as follows. The BXA3K limit switch is changed to a BXAC3K limit switch. 8 sensing.honeywell.com MICRO SWITCH Hazardous Area Switches, BX | BX2 Series SIDE ROTARY * MICRO SWITCH BX/BX2 SERIES ORDER GUIDE/RECOMMENDED LISTINGS BXR * Low Torque, CW and CCW Momentary Housing Material Contacts (snap-action) Contact Material Conduit Listing Aluminum 1NC-1NO Silver 0.5-14 NPT BXR3K Aluminum 1NC-1NO Gold plate 0.5-14 NPT BXR3E Aluminum 2NC-2NO Silver 0.75-14 NPT BXR4L Aluminum 2NC-2NO Gold plate 0.75-14 NPT BXR4S Housing Material Contacts (snap-action) Contact Material Conduit Listing Aluminum 2NC-2NO Silver 0.75-14 NPT BXH4L Housing Material Contacts (snap-action) Contact Material Conduit Listing Aluminum 1NC-1NO Silver 0.5-14 NPT BXB3K 15 1-2 3-4 3-4 1-2 75 0 10 Pretravel * 15 max. Diff. travel (SPDT) * 5 max. Diff. travel (DPDT) * 7 max. Overtravel * 60 min. Oper. torque * 0,19 Nm [1.7 in-lb] max. *Oper. temp * -29 C to 70 C [-20 F to 158 F] 15 1-2/5-6 3-4/7-8 3-4/7-8 1-2/5-6 0 8 75 BXH * Low Differential, Low Torque, CW and CCW Momentary 9 1-2 3-4 3-4 1-2 75 0 6 Pretravel * 9 max. Diff. travel (SPDT) * 3 max. Diff. travel (DPDT) * 4 max. Overtravel * 66 min. Oper. torque * 0,19 Nm [1.7 in-lb] max. *Oper. temp * -29 C to 70 C [-20 F to 158 F] 9 1-2/5-6 3-4/7-8 3-4/7-8 1-2/5-6 0 5 75 BXB * Top Rotary, CW and CCW Momentary 35 1-2 3-4 3-4 1-2 0 135 27 Pretravel * 35 max. Diff. travel (SPDT) * 8 max. Diff. travel (DPDT) * 12 max. Overtravel * 100 min. Oper. torque * 0,28 Nm [2.5 in-lb] max. *Oper. temp * -29 C to 70 C [-20 F to 158 F] 35 1-2/5-6 3-4/7-8 3-4/7-8 1-2/5-6 0 23 135 Contact closed n; Contact open o Actuating head is factory set for CW and CCW actuation. Easily field adjusted for CW or CCW per instructions included with switch. NOTE: Same polarity each pole. * Operating temperature range for standard fluorosilicone sealed switch. For optional fluorocarbon sealed switch, see temperature table, page 8. To order a fluorocarbon sealed version, insert the additional letter "C" in the standard catalog listing, as follows. The BXA3K limit switch is changed to a BXAC3K limit switch. Sensing and Internet of Things 9 MICRO SWITCH Hazardous Area Switches, BX | BX2 Series SIDE ROTARY * MICRO SWITCH BX/BX2 SERIES ORDER GUIDE/RECOMMENDED LISTINGS BXN * Maintained, Two Position CCW (trip), CW (Reset) 65 1-2 3-4 3-4 1-2 0 85 25 Pretravel * 65 max. Diff. travel * 40 max. Overtravel * 20 min. Oper. torque * 0,45 Nm [4 in-lb] max. *Oper. temp * -29 C to 70 C [-20 F to 158 F] 65 1-2/5-6 3-4/7-8 3-4/7-8 1-2/5-6 85 0 25 BXM * Center Neutral, CW and CCW Momentary Pretravel * 18 max. Diff. travel * 10 max. Overtravel * 57 min. Oper. torque * 0,45 Nm [4 in-lb] max. *Oper. temp * -40 C to 70 C [-40 F to 158 F] 75 CCW Contact Material Conduit Listing Aluminum 1NC-1NO Silver 0.5-14 NPT BXN3K Aluminum 1NC-1NO Silver 20 mm BX4N3K Aluminum 2NC-2NO Silver 0.75-14 NPT BXN4L Aluminum 2NC-2NO Silver 20 mm BX4N4L Housing Material Contacts (snap-action) Contact Material Conduit Listing Aluminum 2NC-2NO Silver 0.75-14 NPT BXM4N Aluminum 2NC-2NO Silver 20 mm BX4M4N 75 8 CW 0 18 75 5-6 7-8 7-8 5-6 18 0 Contacts (snap-action) 75 1-2 3-4 3-4 1-2 CCW Housing Material 8 CW Contact closed n; Contact open o NOTE: Same polarity each pole. * Operating temperature range for standard fluorosilicone sealed switch. For optional fluorocarbon sealed switch, see temperature table, page 8. To order a fluorocarbon sealed version, insert the additional letter "C" in the standard catalog listing, as follows. The BXA3K limit switch is changed to a BXAC3K limit switch. 10 sensing.honeywell.com MICRO SWITCH Hazardous Area Switches, BX | BX2 Series Table 3. Common levers for use with MICRO SWITCH BX Rotary Switches* Levers for use with side-rotary-actuated switches are available in a wide choice of sizes and materials. The most common listings are shown below. Rollers may be on either side of the lever to best match the external actuating mechanism. Fixed lever, nylon roller LSZ51A - front mount roller LSZ51C - back mount roller Short fixed lever, nylon roller LSZ59A - front mount roller LSZ59C - back mount roller One-way lever, nylon roller LSZ60A - front mount roller Yoke lever, nylon rollers LSZ53A - front/back mount rollers Adjustable lever, nylon roller LSZ52A - back mount roller LSZ52C - front mount roller LSZ52J adjustable lever, nylon roller 25,4 mm [1 in] LSZ52K adjustable lever, nylon roller 38,1 [1.5 in] LSZ54M aluminum rod 140 mm [5.5 in] LSZ61 loop 152 mm [6 in] Offset lever, nylon roller LSZ55A - back mount roller LSZ55C - front mount roller LSZ67CA** Plastic conveyor roller LSZ68 rod with spring 305 mm [12 in] * Non-sparking rollers and actuators must be used in hazardous areas. ** May require orientation of switch and lever to enable gravity to help restore switch's free position. Sensing and Internet of Things 11 MICRO SWITCH Hazardous Area Switches, BX | BX2 Series Table 4. BX/BX2 Series Lever Order Guide Catalog Listing Material Roller Dia. mm [in] Roller Roller Width mm Mounting [in] Fixed 38,1 [1.5] inch radius Catalog Listing Material Roller Dia. mm [in] Roller Roller Width mm Mounting [in] Offset - 38,1 [1.5] in radius LSZ51 Rollerless n/a n/a n/a LSZ55 Rollerless n/a n/a n/a LSZ51A Nylon 19 [0.75] 6,35 [0.25] Front LSZ55A Nylon 19 [0.75] 6,35 [0.25] Back 19 [0.75] 6,35 [0.25] Back LSZ55C Nylon 19 [0.75] 6,35 [0.25] Front Front LSZ55E Nylon 19 [0.75] 12,7 [0.50] Front Front LSZ55K Nylon 38,1 [1.5] 6,35 [0.25] Front LSZ51C Nylon LSZ51F Nylon 25,4 [1.0] 12,7 [0.50] LSZ51G Nylon 38,1 [1.5] 6,35 [0.25] 25,4 [1.0] 12,7 [0.50] Back Short fixed - 1.3 in radius 19 [0.75] 31,7 [1.25] Back LSZ59A Nylon 19 [0.75] 6,35 [0.25] Front 19 [0.75] 12,7 [0.50] Front 19 [0.75] 6,35 [0.25] Front LSZ59C Nylon 19 [0.75] 6,35 [0.25] Back LS2Z51C (sst) Nylon 19 [0.75] 6,35 [0.25] Back LS2Z51E (sst) Copper alloy 19 [0.75] 6,35 [0.25] Front 19 [0.75] 6,35 [0.25] Front LSZ51J LSZ51M LSZ51P Nylon Nylon Nylon LS2Z51A (sst) Nylon 6,35 [0.25] Adjustable 38,1 [1.5] in to 3.5 in radius LSZ52 Rollerless n/a n/a LS2Z51F (sst) Copper alloy LSZ52A LSZ52C LSZ52E Nylon Nylon Nylon 19 [0.75] Back LSZ60A Nylon n/a 19 [0.75] 6,35 [0.25] Back 19 [0.75] 6,35 [0.25] Front 19 [0.75] 33,0 [1.30] Front Front LSZ52J Nylon 25,4 [1.0] 12,7 [0.50] LSZ52K Nylon 38,1 [1.5] 6,35 [0.25] Front Front LSZ52M Nylon 50,8 [2.0] 6,35 [0.25] LSZ52N Nylon 19 [0.75] 12,7 [0.50] Front LS2Z52A (sst) Nylon 19 [0.75] 6,35 [0.25] Front LS2Z52C (sst) Nylon 19 [0.75] 6,35 [0.25] Back LS2Z52E (sst) Copper alloy 19 [0.75] 6,35 [0.25] Front 19 [0.75] 6,35 [0.25] Back 19 [0.75] 6,35 [0.25] Front/Back 19 [0.75] 6,35 [0.25] Back/Front Back/Front Back/Back LS2Z52F (sst) Copper alloy One-way roller lever Flexible loop LSZ61 O 4,8 [O 0.19 ] 152 mm [6 in] flexible loop Nylatron LSZ618 O 4,8 [O 0.19 ] 241 mm [9.5 in] flexible loop Nylatron LSZ54 Hub only n/a n/a n/a Spring rod LSZ68 Delrin rod, 305 O 6,35 [0.25] mm [12 in] n/a n/a LSZ617 Delrin rod, 406 O 6,35 mm [16 in] [0.25] n/a n/a LSZ686 Delrin rod, 152 O 6,35 mm [6 in] [0.25] n/a n/a Yoke - 38,1 [1.5] in radius LSZ53A LSZ53E Nylon Nylon LSZ53M Nylon 19 [0.75] 31,7 [1.25] LSZ53S Nylon 19 [0.75] 6,35 [0.25] LSZ51Y 38,1 [1.5] radius (standard) LSZ55Y 38,1 [1.5] radius Rod LSZ54 Rubber roller levers (offset) Hub only n/a n/a n/a Rubber 50 [2.0] 12,7 [0.5] front Rubber 50 [2.0] 12,7 [0.5] front Rubber 50 [2.0] 12,7 [0.5] front 38,1 [1.5] 96,5 [3.8] n/a LSZ52Y 38,1 to 89 [1.5 to 3.5] radius (adjustable) LSZ54M Alum, 140 mm O 3,2 [5.5 in] [O 0.125] n/a n/a LSZ67AA (conveyor)* LSZ54N Stainless, 330 mm [13 in] O 3,2 [O 0.125] n/a n/a LSZ54P Plastic rod, 305 mm [12 in] O6,85 [O 0.27] n/a n/a LSZ54W Plastic rod, 183 mm [7.2 in] O6,85 [O 0.27] n/a n/a 12 sensing.honeywell.com Plastic roller levers Plastic * May require orientation of switch and lever to enable gravity to help restore switch to free position. MICRO SWITCH Hazardous Area Switches, BX | BX2 Series TOP PLUNGER * MICRO SWITCH BX/BX2 SERIES ORDER GUIDE/RECOMMENDED LISTINGS All top plungers are momentary action. BXC /BX2C * Top Pin Plunger 1,78 mm [0.07 in] 1-2 3-4 3-4 1-2 0 in 1,4 mm [0.055 in] 6,6 mm [0.26 in] Pretravel * 1,78 mm [0.07 in] max. Diff. travel (SPDT) * 0,38 mm [0.015 in] max. Diff travel (DPDT) * 0,51 mm [0.020 in] max. Overtravel * 4,83 mm [0.190 in] min. Oper. point * 58,5 0,76 mm [2.305 0.030 in] Oper. force * 17,8 N [4 lb] max. *Oper. temp * -40 C to 70 C [-40 F to 158 F] 1,78 mm [0.07 in] 1-2/5-6 3-4/7-8 3-4/7-8 1-2/5-6 0 in 1,27 mm [0.05 in] 6,6 mm [0.26 in] BXD /BX2D * Top Roller Plunger (can be rotated at 90 increments) 1,78 mm [0.07 in] 1-2 3-4 3-4 1-2 0 in 1,4 mm [0.055 in] 6,6 mm [0.26 in] Pretravel * 1,78 mm [0.07 in] max. Diff. travel (SPDT) * 0,38 mm [0.015 in] max. Diff travel (DPDT) * 0,51 mm [0.020 in] max. Overtravel * 4,83 mm [0.190 in] min. Oper. point * 68,6 1,02 mm [2.70 0.040 in] Oper. force * 17,8 N [4 lb] max. *Oper. temp * -40 C to 70 C [-40 F to 158 F] 1,78 mm [0.07 in] 1-2/5-6 3-4/7-8 3-4/7-8 1-2/5-6 0 in 1,27 mm [0.05 in] 6,6 mm [0.26 in] BXV * Top Adjustable Plunger Pretravel * 1,78 mm [0.07 in] max. Diff. travel (SPDT) * 0,38 mm [0.015 in] max. Diff travel (DPDT) * 0,51 mm [0.020 in] max. Overtravel * 4,83 mm [0.190 in] min. Oper. point * 65,66 [2.585] min; 72,01 [2.835] max. Oper. force * 17,8 N [4 lb] max. *Oper. temp * -40 C to 70 C [-40 F to 158 F] Housing Material Contacts (snap-action) Contact Material Conduit Listing Aluminum 1NC-1NO Silver 0.5-14 NPT BXC3K Aluminum 1NC-1NO Silver 0.75-14 NPT BXC4K Aluminum 1NC-1NO Silver 20 mm BX4C3K Aluminum 1NC-1NO Gold plate 20mm BX4C3E Aluminum 2NC-2NO Silver 0.75-14 NPT BXC4L Aluminum 2NC-2NO Silver 20 mm BX4C4L Aluminum 2NC-2NO Gold plate 20 mm BX4C4S Stainless steel 2NC-2NO Silver 0.75-14 NPT BX2C4L Stainless steel 2NC-2NO Silver 20 mm BX24C4L Housing Material Contacts (snap-action) Contact Material Conduit Listing Aluminum 1NC-1NO Silver 0.5-14 NPT BXD3K Aluminum 1NC-1NO Silver 20 mm BX4D3K Aluminum 1NC-1NO Gold plate 20 mm BX4D3E Aluminum 2NC-2NO Silver 0.75-14 NPT BXD4L Aluminum 2NC-2NO Silver 20 mm BX4D4L Aluminum 2NC-2NO Gold plate 20 mm BX4D4S Stainless steel 2NC-2NO Silver 0.75-14 NPT BX2D4L Stainless steel 2NC-2NO Silver 20 mm BX24D4L Housing Material Contacts (snap-action) Contact Material Conduit Listing Aluminum 2NC-2NO Silver 0.75-14 NPT BXV4L 1-2/5-6 3-4/7-8 3-4/7-8 1-2/5-6 0 in 1,27 mm [0.05 in] 1,78 mm [0.07 in] 6,6 mm [0.26 in] Contact closed n; Contact open o NOTE: Same polarity each pole. * Operating temperature range for standard fluorosilicone sealed switch. For optional fluorocarbon sealed switch, see temperature table, page 8. To order a fluorocarbon sealed version, insert the additional letter "C" in the standard catalog listing, as follows. The BXA3K limit switch is changed to a BXAC3K limit switch. Sensing and Internet of Things 13 MICRO SWITCH Hazardous Area Switches, BX | BX2 Series SIDE PLUNGER * MICRO SWITCH BX/BX2 SERIES ORDER GUIDE/RECOMMENDED LISTINGS All side plungers are momentary action. BXE /BX2E * Side Pin Plunger Housing Material 2,54 mm [0.10 in] 1-2 3-4 3-4 1-2 0 in 1,4 mm [0.055 in] 7,36 mm [0.29 in] Pretravel * 2,54 mm [0.10 in] max. Diff. travel * 1,14 mm [0.045 in] max. Overtravel * 4,83 mm [0.190 in] min. Oper. point * 33,02 0,76 mm [1.30 0.030 in] Oper. force * 26,79 N [6 lb] max. *Oper. temp * -40 C to 70 C [-40 F to 158 F] 2,54 mm [0.10 in] 1-2/5-6 3-4/7-8 3-4/7-8 1-2/5-6 0 in 1,4 mm [0.055 in] 7,36 mm [0.29 in] BXF /BX2F * Side Roller Plunger 7,36 mm [0.29 in] Pretravel * 2,54 mm [0.10 in] max. Diff. travel * 1,14 mm [0.045 in] max. Overtravel * 4,83 mm [0.190 in] min. Oper. point * 44,07 1,02 mm [1.735 in 0.040] Oper. force * 26,79 N [6 lb] max. *Oper. temp * -40 C to 70 C [-40 F to 158 F] 0 in 1,4 mm [0.055 in] 2,54 mm [0.10 in] 1-2/5-6 3-4/7-8 3-4/7-8 1-2/5-6 Conduit Listing 1NC-1NO Silver 0.5-14 NPT BXE3K Aluminum 1NC-1NO Gold plate 0.5-14 NPT BXE3E Stainless steel 1NC-1NO Silver 0.5-14 NPT BX2E3K Stainless steel 1NC-1NO Gold plate 0.5-14 NPT BX2E3E Aluminum 2NC-2NO Silver 0.75-14 NPT BXE4L Aluminum 2NC-2NO Gold plate 0.75-14 NPT BXE4S Contacts Contact Material Conduit Listing (snap-action) 0 in 1,4 mm [0.055 in] Contact Material Aluminum Housing Material 2,54 mm [0.10 in] 1-2 3-4 3-4 1-2 Contacts (snap-action) 7,36 mm [0.29 in] Aluminum 1NC-1NO Silver 0.5-14 NPT BXF3K Aluminum 1NC-1NO Gold plate 0.5-14 NPT BXF3E Stainless steel 1NC-1NO Silver 0.5-14 NPT BX2F3K Stainless steel 1NC-1NO Gold plate 0.5-14 NPT BX2F3E Aluminum 2NC-2NO Silver 0.75-14 NPT BXF4L Aluminum 2NC-2NO Gold plate 0.75-14 NPT BXF4S Contact closed n; Contact open o NOTE: Same polarity each pole. * Operating temperature range for standard fluorosilicone sealed switch. For optional fluorocarbon sealed switch, see temperature table, page 8. To order a fluorocarbon sealed version, insert the additional letter "C" in the standard catalog listing, as follows. The BXA3K limit switch is changed to a BXAC3K limit switch. 14 sensing.honeywell.com MICRO SWITCH Hazardous Area Switches, BX | BX2 Series WOBBLE * MICRO SWITCH BX/BX2 SERIES ORDER GUIDE/RECOMMENDED LISTINGS BXJ * Wobble, Plastic Rod (7A Actuator) 12 1-2 3-4 3-4 1-2 40 0 8 Actuator length * 152 mm [6 in] Pretravel * 25,4 mm [1.0 in] max. Oper. force * 2,8 N [10 oz] max. *Oper. temp * -29 C to 70 C [-20 F to 158 F] 12 1-2/5-6 3-4/7-8 3-4/7-8 1-2/5-6 0 8 40 BXK * Wobble, Cat Whisker (8A Actuator) Housing Material (snap-action) Contacts Contact Material Conduit Listing Aluminum 1NC-1NO Silver 0.5-14 NPT BXJ3K-7A Aluminum 1NC-1NO Silver 20 mm BX4J3K-7A Aluminum 1NC-1NO Gold plate 0.5-14 NPT BXJ3E-7A Aluminum 2NC-2NO Silver 0.75-14 NPT BXJ4L-7A Aluminum 2NC-2NO Silver 20 mm BX4J4L-7A Housing Material Contacts Contact Material Conduit Listing (snap-action) Aluminum 1NC-1NO Silver 0.5-14 NPT BXK3K-8A Aluminum 1NC-1NO Gold plate 0.5-14 NPT BXK3E-8A Aluminum 2NC-2NO Silver 0.75-14 NPT BXK4L-8A Aluminum 2NC-2NO Silver 20 mm BX4K4L-8A 25 1-2 3-4 3-4 1-2 0 50 15 Actuator length * 152 mm [6 in] Pretravel * 50,8 mm [2.0 in] max. Oper. force * 1,4 N [5 oz] max. *Oper. temp * -29 C to 70 C [-20 F to 158 F] 25 1-2/5-6 3-4/7-8 3-4/7-8 1-2/5-6 0 15 50 Contact closed n; Contact open o NOTE: Same polarity each pole. * Operating temperature range for standard fluorosilicone sealed switch. For optional fluorocarbon sealed switch, see temperature table, page 8. To order a fluorocarbon sealed version, insert the additional letter "C" in the standard catalog listing, as follows. The BXA3K limit switch is changed to a BXAC3K limit switch. Sensing and Internet of Things 15 MICRO SWITCH Hazardous Area Switches, BX | BX2 Series REPLACEMENT CONTACT BLOCKS Circuitry Replacement Contact Block Single pole LSXZ3K Double pole LSXZ3L Sequence or central neutral LSXZ3M REPLACEMENT HEADS for STANDARD BX Switches Switch Type Catalog Listing/Operating Head Only BXA LSZ1AB BXB LSZ1BB BXC LSXZ1CB BXD LSXZ1DB BXE LSXZ1EB BXF LSXZ1FB BXH LSZ1HB BXJ LSZ1JBGA BXK LSXZ1KBHA BXL LSZ1LB BXM LSZ1MB BXP LSZ1PB BXR LSZ1RB BXV LSXZ1VB BXW LSXZ1WB 16 sensing.honeywell.com ASSEMBLY MODIFICATIONS Momentary action rotary switches can be furnished in other than the normal assembled conditions. To specify modifications, add the numbers shown below to the catalog listings. Modification number suffixes are: 1 Clockwise actuation only 2 Counterclockwise actuation only 3 Shaft to right of switch front 4 Shaft to left of switch front 5 Shaft to back of switch For example, Catalog listing BXA3K23 is a BXA3K switch adjusted for counterclockwise actuation only. The operating shaft is to the right side of the switch when viewing it from the front (label side). No lever. PLUNGER ASSEMBLY MODIFICATIONS Add the following modification numbers to the catalog listing in the plunger switch: 3 Side plunger to right of switch front 4 Side plunger to left of switch front 5 Side plunger to back of switch 6 Roller on top plungers perpendicular to mounting surface 8 Roller on side plungers in vertical position For example, Catalog listing BXF3K3 is a BXF3K switch with the side roller plunger to the right side. MICRO SWITCH Hazardous Area Switches, BX | BX2 Series Figure 3. MICRO SWITCH BX Series Side Rotary Product Dimensions * mm [in] Side Rotary - Head Codes: A, H, L, M, N, P, Q, AND R 51,85 [2.04] 39,62 [1.56] 62,36 [2.46] 19,81 [0.78] MTG. PADS 25,40 [1.00] 49,15 [1.94] 31,75 [1.25] 46,48 [1.83] 146,05 [5.75] 85,73 [3.375] 96,77 [3.81] 2X O 5,16 /[0.203] MTG. HOLES 38,10 [1.50] 120,65 [4.75] O 76,20 [3.00] 2X 5/16 - 18 UNC - 2B TAPPED FROM REAR x 22,23 [0.875] min. 25,40 [1.00] 41,15 [1.62] 73,18 [2.88] Figure 4. MICRO SWITCH BX Series Wobble Stick, Head Code J * mm [in] 19.05 [0.75] O6,35 [O0.25] Figure 5. MICRO SWITCH BX SERIES Cat Whisker Wobble, Head Code K * mm [in] 0,84 [21.3] 11,94 [0.047] 12,3 [0.845] 152,4 [6.00] 152,4 [6.0] 76,2 [3.00] 77,7 [3.06] K HEAD J HEAD Sensing and Internet of Things 17 MICRO SWITCH Hazardous Area Switches, BX | BX2 Series Figure 6. MICRO SWITCH BX Series Top Rotary, Head Code B * mm [in] Figure 7. MICRO SWITCH BX Series Top Pin Plunger, Head Code C * mm [in] 19,05 [0.75] 21,6 [.85] 19,05 [.75] 9,5 [0.373] 21,6 [0.85] 7,32 [0.29] OPERATING POINT 59,7 [2.35] 69,9 [2.75] 55,1 [2.17] MTG PADS MTG PADS Figure 8. MICRO SWITCH BX Series Top Roller Plunger, Head Code D * mm [in] C HEAD Figure 9. MICRO SWITCH BX Series Side Plunger, Head Code E * mm [in] 19,05 [0.75] B HEAD 19,05 [.75] 33.0 [1.30] OPERATING POINT 21,5 [8.45] 21,5 [0.845] 4,7 [0.185] O12,7 [O 0.50] 31.75 [1.25] 9.47 [0.373] OPERATING POINT 68.6 [2.700] MTG PADS Figure 10. MICRO SWITCH BX Series Side Roller Plunger, E HEAD Head Code F * mm [in] MTG PADS Figure 11. MICRO SWITCH BX Series Adjustable Top Pin Plunger, Head Code V * mm [in] 19,05 [0.75] 44.1 [1.735] OPERATING POINT 21,6 [0.85] 3,81 [0.15] D HEAD 21,6 [.85] 19,05 [.75] 31,75 [1.25] 7,92 [3.12] ACROSS FLATS 72,0 - 65,7 [2.835 MAX - 2.585 MIN] OPERATING POINT O12,7 [O0.50] F HEAD Figure 12. MICRO SWITCH BX Series Adjustable Side Pin Plunger, Head Code W * mm [in] 19,05 [.75] V HEAD 41,0 MIN - 47,4 MAX [1.615 MIN - 1.865 MAX] OPERATING POINT 0,85 [21.6] 31,8 [1.25] 7,92 [3.12] ACROSS FLATS W HEAD 18 sensing.honeywell.com MICRO SWITCH Hazardous Area Switches, BX | BX2 Series Figure 13. MICRO SWITCH BX2 Series Side Rotary Product Dimensions * mm [in] Side Rotary - Head Codes: A, P, AND R 39,62 [1.56] 31,75 [1.25] 52,32 [2.06] 19,05 [0.75] 25,40 [1.00] 49,15 [1.94] 46,48 [1.83] 85,73 [3.375] 61,72 [2.43] 19,81 [0.78] 146,05 [5.75] 96,77 [3.81] 2X O 5,16 /[0.203] MTG. HOLES 38,10 [1.50] 120,65 [4.75] O 76,20 [3.00] 2X 5/16 - 18 UNC - 2B TAPPED FROM REAR x 22,23 [0.875] min. 41,15 [1.62] 24,89 [0.98] 72,90 [2.87] Figure 14. MICRO SWITCH BX2 Series Top Plunger Product Dimensions * mm [in] Top Plunger - Head Codes: C and D Sensing and Internet of Things 19 MICRO SWITCH Hazardous Area Switches, BX | BX2 Series Figure 15. MICRO SWITCH BX2 Series Side Plunger Product Dimensions * mm [in] Side Plunger - Head Codes: E and F 20 sensing.honeywell.com ADDITIONAL INFORMATION The following associated literature is available on the Honeywell web site at sensing.honeywell.com: * Product installation instructions * Product range guide * Hazardous area product brochure m WARNING PERSONAL INJURY DO NOT USE these products as safety or emergency stop devices or in any other application where failure of the product could result in personal injury. Failure to comply with these instructions could result in death or serious injury. * Product application-specific information - Application Note: Gas Recovery Unit and Other O&G Drilling Applications - Application Note: Pipeline Pig Passage Detection/Indicator Applications - Application Note: Electronic Sensors and Electromechanical Switches in Valves and Flow Meters - Application Note: Sensors and Switches Used in Valve Actuators and Valve Positioners - Application Note: Sensors and Switches for Industrial Manual Process Valves - Sensors and Switches in Oil Rig Applications m WARNING MISUSE OF DOCUMENTATION * * The information presented in this product sheet is for reference only. Do not use this document as a product installation guide. Complete installation, operation, and maintenance information is provided in the instructions supplied with each product. Failure to comply with these instructions could result in death or serious injury. Warranty/Remedy Find out more Honeywell serves its customers through a worldwide network of sales offices and distributors. For application assistance, current specifications, pricing or name of the nearest Authorized Distributor, contact your local sales office. To learn more about Honeywell's sensing and switching products, call +1-815-235-6847 or Honeywell warrants goods of its manufacture as being free of defective materials and faulty workmanship during the applicable warranty period. Honeywell's standard product warranty applies unless agreed to otherwise by Honeywell in writing; please refer to your order acknowledgement or consult your local sales office for specific warranty details. If warranted goods are returned to Honeywell during the period of coverage, Honeywell will repair or replace, at its option, without charge those items that Honeywell, in its sole discretion, finds defective. The foregoing is buyer's sole remedy and is in lieu of all other warranties, expressed or implied, including those of merchantability and fitness for a particular purpose. In no event shall Honeywell be liable for consequential, special, or indirect damages. While Honeywell may provide application assistance personally, through our literature and the Honeywell web site, it is buyer's sole responsibility to determine the suitability of the product in the application. Specifications may change without notice. The information we supply is believed to be accurate and reliable as of this writing. However, Honeywell assumes no responsibility for its use. 1-800-537-6945, visit sensing.honeywell.com, or e-mail inquiries to info.sc@honeywell.com Honeywell Sensing and Internet of Things 9680 Old Bailes Road Fort Mill, SC 29707 honeywell.com 002306-8-EN IL50 GLO August 2017 (c) 2017 Honeywell International Inc. All rights reserved. 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