23/06/2014 www.crouzet.com Voltage control relay - 17.5 mm MUS/MUSF 80 AC/DC Part number 84872141 Control relays monitoring their own power supply - MUS : Over/undervoltage control Selectable latching (memory) function - MUSF : Over/undervoltage control Adjustable time delays Control in 50 Hz, 60 Hz or DC True RMS measurement LED status indication Part numbers 84872141 Type Functions Controlled ranges MUS/MUSF 80 AC/DC Under/Overvoltage control 20 80 V AC/DC Specifications Supply Polarity with DC voltage AC supply voltage frequency Galvanic isolation of power supply/measurement Immunity from micro power cuts 50 / 60 Hz 10 % No 10 ms Inputs and measuring circuit Max. measuring cycle time Display precision Repetition accuracy with constant parameters Measuring error with voltage drift Measuring error with temperature drift 250 ms/True RMS measurement 10 % of full scale 0,5 % < 1 % across the whole range 0,05 % / C Timing Delay on thresold crossing Repetition accuracy with constant parameters Reset time Delay on pick-up 0,1 10 sec (0, +10 %) 0,5 % 1,5 s 500 ms in AC / 1 s in DC Output Type of output Type of contacts Maximum breaking voltage Max. breaking current Min. breaking current Electrical life (number of operations) Breaking capacity (resistive) Maximum rate Operating categories acc. to IEC/EN 60947-5-1 Mechanical life (operations) 1 single pole changeover relay No cadmium 250 V AC/DC 5 A AC/DC 10 mA / 5 V DC 1 x 105 1250 VA AC 360 operations/hour at full load AC 12, AC 13, AC 14, AC 15, DC 12, DC 13, DC 14 30 x 106 Insulation Nominal insulation voltage IEC/EN 60664-1 Insulation coordination (IEC/EN 60664-1) Rated impulse withstand voltage (IEC/EN 60664-1) Dielectric strength (IEC/EN 60664-1) Insulation resistance (IEC/EN 60664-1) 250 V Overvoltage category III : degree of pollution 3 4 KV (1,2 / 50 s) 2 KV AC 50 Hz 1 min > 500 M / 500 V DC General characteristics Display power supply Display relay Casing Mounting Mounting position Material : enclosure plastic type VO to UL94 standard Protection (IEC/EN 60529) Green LED Yellow LED 17,5 mm On 35 mm symmetrical DIN rail, IEC/EN 60715 All positions Incandescent wire test according to IEC 60695-2-11 & NF EN 60695-2-11 Terminal block : IP 20 Casing : IP 30 Connecting capacity IEC/EN 60947-1 Rigid : 1 x 42 - 2 x 2.52 mm2 1 x 11 AWG - 2 x 14 AWG Flexible with ferrules : 1 x 2.52 - 2 x 1.52 mm2 Unless otherwise specified, the characteristics given are applicable to all or part of the product range selected 23/06/2014 www.crouzet.com Max. tightening torques IEC/EN 60947-1 Operating temperature IEC/EN 60068-2 Storage temperature IEC/EN 60068-2 Humidity IEC/EN 60068-2-30 Vibrations according to IEC/EN60068-2-6 Shocks IEC/EN 60068-2-6 1 x 14 AWG - 2 x 16 AWG 0,6 1 Nm / 5,3 8,8 Lbf.In -20 +50 C -40 70 C 2 x 24 hr cycle 95 % RH max. without condensation 55 C 10 150 Hz, A = 0.035 mm 5g Standards Marking Product standard Electromagnetic compatibility Certifications Conformity with environmental directives CE (LVD) 73/23/EEC - EMC 89/336/EEC NF EN 60255-6 / IEC 60255-6 / UL 508 / CSA C22.2 N14 Immunity EN 61000-6-2/IEC 61000-6-2 Emission EN 61000-6-4/EN 61000-6-3 IEC 61000-6-4/IEC 61000-6-3 Emission EN 55022 class B UL, CSA, GL RoHS, WEEE Supply Nominal voltage (V) Power consumption at Un Operating range Range of adjustment 24 48 V AC/DC 3.9 VA in AC/1.6 W in DC 15 100 V AC/DC 20 80 V AC/DC Inputs and measuring circuit 5 20 % of threshold (MUS) 3 % (fixed) of threshold (MUSF) Hysteresis General characteristics Weight 80 g Accessories Description Code Removable sealable cover for 17.5 mm casing 84800000 Principles The under or overvoltage threshold value is set by a graduated potentiometer by reading the Un scale to be monitored directly. The hysteresis is set by a graduated potentiometer from 5 to 20 % of the preset threshold. The hysteresis value cannot be higher than the extremes of the measurement range. In overvoltage mode, if the controlled voltage exceeds the preset threshold for longer than the time set on the front face (0.1 to 10 s), the output relay opens and LED R is extinguished. During the time delay, this LED flashes. Once the voltage falls below the threshold value minus the hysteresis, the relay closes instantaneously. In undervoltage mode, if the controlled voltage falls below the preset threshold for longer than the time set on the front face (0.1 to 10 s), the output relay opens and LED R is extinguished. During the time delay, this LED flashes. Once the voltage rises above the threshold value plus the hysteresis, the relay closes instantaneously. No Legend Threshold Hysteresis Unless otherwise specified, the characteristics given are applicable to all or part of the product range selected 23/06/2014 www.crouzet.com Overvoltage function relay Undervoltage underload function relay Controlled signal Delay on threshold crossing (Tt) Principles If "with memory" mode has been selected, the relay opens and stays in this position when threshold crossing is detected. The power supply must be disconnected to reset the product. No Legend Threshold Hysteresis Overvoltage function relay Undervoltage function relay Controlled signal Delay on threshold crossing (Tt) Principles MUSF relays operate in window mode : they check that the controlled voltage stays between a minimum and maximum threshold. The under and overvoltage threshold values are set by two graduated potentiometers by reading the Un scale to be monitored directly. The hysteresis is fixed, value : 3 % of the preset thresholds. If the controlled voltage exceeds the preset upper threshold, or falls below the preset lower threshold for longer than the time set on the front face (0.1 to 10 s), the output relay opens and LED R is extinguished. During the time delay, this LED flashes. Once the voltage returns to below the upper threshold value minus the hysteresis, or above the lower threshold value plus the hysteresis, the relay closes instantaneously. When the unit is powered up with a measured fault, the relay stays open. Unless otherwise specified, the characteristics given are applicable to all or part of the product range selected 23/06/2014 No www.crouzet.com Legend High threshold Low threshold Hysteresis Controlled signal Delay on threshold crossing (Tt) Relay Dimensions (mm) MUS - MUSF Connections MUS - MUSF No Legend 1 A fast-blow fuse or cut-out Unless otherwise specified, the characteristics given are applicable to all or part of the product range selected 23/06/2014 www.crouzet.com Product adaptations Customisable colours and labels Fixed threshold in the generic measurement range Fixed or adjustable time delay Adjustable hysteresis Adaptations dedicated to MUS 12 DC, MUS 80 AC, MUS 260 AC : Possible to delete settings Adjustable fixed hysteresis Unless otherwise specified, the characteristics given are applicable to all or part of the product range selected Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: Crouzet: 84872141