Modular step relays 16A Automation for blinds, grilles and shutters Lighting control in corridors (for hotels, offices and hospitals) Bedroom light control Living room light control 20 SRIES FINDER reserves the right to alter characteristics at any time without notice. FINDER assumes no liability for damage to persons or property, caused as a result of the incorrect use or application of its products. 20 SERIES Modular step relays 16A 20 SERIES 20.21 1 or 2 Pole 16A Step relays for direct 35mm rail (EN60715) mounting 20.22, 24, 26, 27, 28 20.23 * 17.4mm wide * Test button with mechanical indicators * Choice of 7 switching sequences * AC coils and DC coils * Identification label * Possible to connect illuminated push buttons with the additional part 026.00 * 35mm rail (EN60715) mount * Cadmium free contact material 20.21/22/24/26/27/28/23 Screw terminal * Single phase switch 1 NO (SPST-NO) * 35mm rail (EN60715) mount * Double phase switch * 35mm rail (EN60715) mount * Double phase switch 1NO+1NC (SPST-NO+SPST-NC) * 35mm rail (EN60715) mount For UL ratings see: "General technical information" page V For outline drawing see page 5 Contact specification Contact configuration Rated current/Maximum peak current Rated voltage/ Maximum switching voltage A VAC 1 NO (SPST-NO) 2 NO (DPST-NO) 1NO+1NC (SPST-NO+SPST-NC) 16/30 16/30 16/30 250/400 250/400 250/400 Rated load AC1 VA 4000 4000 4000 Rated load AC15 (230VAC) VA 750 750 750 230V incandescent/halogen W 2000 2000 2000 1000 1000 1000 Nominal lamp rating: fluorescent tubes with electronic ballast W fluorescent tubes with electromagnetic ballast W 750 750 750 CFL W 400 400 400 230V LED W 400 400 400 400 400 400 LV halogen or LED with electronic ballast W LV halogen or LED with electromagnetic ballast W Minimum switching load mW (V/mA) Standard contact material 800 800 800 1000 (10/10) 1000 (10/10) 1000 (10/10) AgSnO2 AgSnO2 AgSnO2 Coil specification Nominal voltage (UN) VAC (50/60Hz) VDC Rated power AC/DC VA (50Hz)/W Operating range 8 - 12 - 24 - 48 - 110 - 120 - 230 - 240 12 - 24 - 48 - 110 12 - 24 - 48 - 110 12 - 24 - 48 - 110 6.5/5 6.5/5 6.5/5 (0.85...1.1)UN (50Hz)/(0.9...1.1)UN (60Hz) AC DC K (0.9...1.1)UN (0.9...1.1)UN (0.9...1.1)UN XII-2018, www.findernet.com Technical data Mechanical life AC/DC cycles 300*103 300*103 300*103 Electrical life at rated load in AC1 cycles 100*10 100*10 100*103 Minimum/Maximum impulse duration 3 3 0.1s/1h (according to EN60669) 0.1s/1h (according to EN60669) 0.1s/1h (according to EN60669) Insulation between coil and contacts (1.2/50s) kV 4 4 4 Ambient temperature range C -40...+40 -40...+40 -40...+40 IP 20 IP 20 IP 20 Protection category Approvals (according to type) 3 20 SERIES Modular step relays 16A 20 SERIES Ordering information Example: 20 series relay, 35mm rail (EN60715) mount, double phase switch, 2 NO 16A contacts, coil rated at 12VDC, AgSnO2 contacts. 2 0 . 2 2 . 9 . 0 1 2 . 4 Series 0 0 0 Contact material 0 = AgNi 4 = AgSnO2 Type 2 = 35mm rail (EN60715) mount Coil voltage See coil specifications No. of poles 1 = Single phase switch 1 NO (SPST-NO) 2 = Double phase switch 2 NO (DPST-NO) 3 = Double phase switch 1 NC+ 1 NO (SPST-NO+SPST-NC) 4 = 4 sequence double phase switch 2 NO (DPST-NO) 6 = 3 sequence double phase switch 2 NO (DPST-NO) 7 = 3 sequence double phase switch 2 NO (DPST-NO) 8 = 4 sequence double phase switch 2 NO (DPST-NO) Coil version 8 = AC (50/60Hz) 9 = DC Technical data Insulation Dielectric strength between supply and contacts VAC 3500 between open contacts VAC 2000 between adjacent contacts VAC 2000 Other data Power lost to the environment with rated current and coil deenergised W 1.3 (20.21, 20.23, 20.28) Screw torque 2.6 (20.22, 20.24, 20.26, 20.27) Nm 0.8 0.8 Coil terminals Max. wire size Contact terminals solid cable stranded cable solid cable mm2 1x4 / 2x2.5 1x2.5 / 2x2.5 1x6 / 2x4 stranded cable 1x4 / 2x2.5 AWG 1x12 / 2x14 1x14 / 2x14 1x10 / 2x12 1x12 / 2x14 If the coil is operated for a prolonged period of time, adequate ventilation of the relays must be provided - suggested gap of 9mm between adjacent relays. Coil specifications DC version data Coil code V K Operating range Umin Umax V V Resistance Consumption I at UN R mA 12 9.012 10.8 13.2 27 440 24 9.024 21.6 26.4 105 230 48 9.048 43.2 440 110 110 9.110 99 2330 47 52.8 121 AC version data Nominal voltage UN Coil code V 4 Operating range Umin Umax Resistance Consumption I at UN R (50Hz) V V 8 8.008 6.8 8.8 12 8.012 10.2 13.2 24 8.024 20.4 26.4 27 275 52.8 48 8.048 40.8 110 8.110 93.5 120 8.120 230 240 mA 4 800 7.5 550 106 150 121 590 64 102 132 680 54 8.230 192 253 2500 28 8.240 204 264 2700 27.5 Type Number of steps 20.21 2 20.22 2 20.23 2 20.24 4 20.26 3 20.27 3 20.28 4 1 Sequence 2 3 4 XII-2018, www.findernet.com Nominal voltage UN 20 SERIES Modular step relays 16A 20 SERIES Wiring diagrams L L N N Example: 230VAC supply voltage. Example: 24VAC supply voltage. Outline drawings Type 20.21 Screw terminal Types 20.22/24/26/27/28 Screw terminal Type 20.23 Screw terminal XII-2018, www.findernet.com K 5 20 SERIES 20 SERIES Modular step relays 16A Accessories Module for use with illuminated push-buttons Type 026.00 Sealed construction, 7.5cm insulated flexible wire termination. Example of wiring diagram of type 026.00 This module is necessary when using between 1 and a maximum of 15 illuminated push buttons in the coil circuit (Each 1.5mA max, 230VAC). It must be connected in parallel to the coil of the relay. Adaptor for panel mounting, 17.5mm wide 020.01 Separator for rail mounting, plastic, 9mm wide 022.09 020.01 022.09 XII-2018, www.findernet.com K 6 Please see general technical information