20.21.9.012.0000

20 SERIES Modular step relays 16 A 20 SERIES 20.21 1 or 2 Pole 16 A Step relays for direct 35 mm rail (EN 60715) mounting 20.22, 24, 26, 27, 28 20.23 • 17.4 mm 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 • 35 mm rail (EN 60715) mount • Cadmium free contact material 20.21/22/24/26/27/28/23 Screw terminal • Single phase switch 1 NO (SPST-NO) • 35 mm rail (EN 60715) mount • Double phase switch • 35 mm rail (EN 60715) mount • Double phase switch 1NO+1NC (SPST-NO+SPST-NC) • 35 mm rail (EN 60715) mount For UL ratings see: “General technical information” page V For outline drawing see page 3 Contact specification Contact configuration Rated current/Maximum peak current Rated voltage/ Maximum switching voltage A V AC 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 (230 V AC) VA 750 750 750 230 V incandescent/halogen W 2000 2000 2000 1000 1000 1000 Nominal lamp rating: fluorescent tubes with electronic ballast W fluorescent tubes with electromechanical ballast W 750 750 750 CFL W 400 400 400 230 V LED W 400 400 400 400 400 400 LV halogen or LED with electronic ballast W LV halogen or LED with electromechanical 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) V AC (50/60 Hz) V DC Rated power AC/DC VA (50 Hz)/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 (50 Hz)/(0.9…1.1)UN (60 Hz) AC DC K (0.9…1.1)UN (0.9…1.1)UN (0.9…1.1)UN 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 III-2016, www.findernet.com Minimum/Maximum impulse duration 3 3 0.1 s/1 h (according to EN 60669) 0.1 s/1 h (according to EN 60669) 0.1 s/1 h (according to EN 60669) Insulation between coil and contacts (1.2/50 µs) 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) 1 20 SERIES Modular step relays 16 A 20 SERIES Ordering information Example: 20 series relay, 35 mm rail (EN 60715) mount, double phase switch, 2 NO 16 A contacts, coil rated at 12 V DC, AgSnO2 contacts. 2 0 . 2 2 . 9 . 0 1 2 . 4 Series 0 0 0 Contact material 0 = AgNi 4 = AgSnO2 Type 2 = 35 mm rail (EN 60715) 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 (50/60 Hz) 9 = DC Technical data Insulation Dielectric strength between supply and contacts V AC 3500 between open contacts  V AC 2000 between adjacent contacts  V AC 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 1 x 4 / 2 x 2.5 1 x 2.5 / 2 x 2.5 1 x 6 / 2 x 4 stranded cable 1 x 4 / 2 x 2.5 AWG 1 x 12 / 2 x 14 1 x 14 / 2 x 14 1 x 10 / 2 x 12 1 x 12 / 2 x 14 If the coil is operated for a prolonged period of time, adequate ventilation of the relays must be provided - suggested gap of 9 mm 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 Ω 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 2 Operating range Umin Umax Resistance Consumption I at UN R (50 Hz) 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 Ω 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 III-2016, www.findernet.com Nominal voltage UN 20 SERIES Modular step relays 16 A 20 SERIES Wiring diagrams L L N N Example: 230 V AC supply voltage. Example: 24 V AC supply voltage. Outline drawings 20.21 Screw terminal 20.22/24/26/27/28 Screw terminal 20.23 Screw terminal III-2016, www.findernet.com K 3 20 SERIES 20 SERIES Modular step relays 16 A Accessories Module for use with illuminated push-buttons Type 026.00 Sealed construction, 7.5 cm 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 1.5 mA max, 230 V AC). It must be connected in parallel to the coil of the relay. Adaptor for panel mounting, 17.5 mm wide 020.01 Sheet of marker tags, plastic, 24 tags, 9 x 17 mm 020.24 Separator for rail mounting, plastic, 9 mm wide 022.09  020.01 020.24 022.09 III-2016, www.findernet.com K 4