Timers Star-Delta Control Relay Type EAB • • • • • • • • • • Time range 1 s to 100 s Automatic start Knob-adjustable time setting Adjustable delay between star and delta output (50 - 130 ms) Oscillator-controlled time circuit Repeatability deviation: ≤ 0.2% Output: 5A SPDT relay with neutral centre position For mounting on DIN-rail in accordance with DIN/EN 50 022 22.5 mm Euronorm housing LED-indication for power supply and star or delta ON Product Description Ordering Key Star-delta control relay with two adjustable time ranges. 1. Star function (1 s to 100 s) and 2. between star and delta function (50 - 130 ms). For moun- Housing Function Type Output Power supply ting on DIN-rail. Used in applications where motors are started in a star-delta configuration such as large blowers etc. EAB C T23 Type Selection Mounting Output For DIN-rail SPDT (with neutral centre pos.) Time range 1 - 100 s Supply: 24 VAC/DC & 115-230 VAC Supply: 115-230 VAC, 300-415 VAC EAB C T23 EAB C T40 Time Specifications Time range Delay adjustable Neutral centre position Time range accuracy Repeatability deviation Time variation Within rated power supply and ambient temperature Reset Time and relay Output Specifications 1 - 100 s 50 - 130 ms between star and delta pos. ±10% on max. min. setting: actual time ≤ min. set time ≤ 0.2% ≤ 0.05%/V ≤ 0.2%/°C Power supply interruption ≥ 100 ms Specifications are subject to change without notice (26.10.99) Output Rated insulation voltage Contact ratings (AgCdO) AC 1 Resistive loads DC 1 Small inductive loads AC 15 DC 13 Mechanical life Electrical life Operating frequency Dielectric strength Dielectric voltage Rated impulse withstand volt. SPDT relay 250 VAC (contact/elect.) µ (micro gap) 5 A, 250 VAC 5 A, 24 VDC 2 A, 250 VAC 3 A, 24 VDC ≥ 40 x 106 operations ≥ 105 operations (at max. load) ≤ 7200 operations/h 2 kVAC (rms) 4 kV (1.2/50 µs) 1 EAB Supply Specifications General Specifications Power supply Rated operational voltage Through term. A1 & A2 T23 Frequency Through term. A2 & A3 T23 Frequency Through term. A1 & A2 T40 Frequency Through term. A2 & A3 T40 Frequency Voltage interruption Dielectric voltage Rated impulse withstand Voltage Rated operational current EMC Overvoltage cat. III (IEC 60664) (IEC 60038) 115-230 VAC, -10/+15% 50/60 Hz, -5/+5 Hz 24 VAC/DC, -10/+15% 50/60 Hz, -5/+5 Hz 300-400 VAC, -10/+15% 50/60 Hz, -5/+5 Hz 115-230 VAC, -10/+15% 50/60 Hz, -5/+5 Hz ≤ 40 ms None 4 kV (1.2/50 µs) 15 mA @ 24 VDC 40 mA @ 24 VAC 20 mA @ 115 VAC 40 mA @ 230 VAC 40 mA @ 400 VAC Electromagnetic Compatibility Acc. to IEC 60801-4 Acc. to IEC 60801-5 ≤ 50 ms @ 230/400 V ≥ 100 ms Immunity Power ON delay Power OFF delay Indication for Power supply ON Star output ON Delta output ON Environment Degree of protection Pollution degree Operating temperature Storage temperature Weight Screw terminals Tightening torque Approvals LED, green LED, yellow LED, yellow IP 20 3 -20° to +50°C (-4° to +122°F) -50° to +85°C (-58° to +185°F) 145 g Max. 0.5 Nm acc. to IEC 60947 UL, CSA Mode of Operation Time Setting neutral centre position and the set delay between star and delta position starts. The output relay is normally in the neutral centre position. When power supply is applied, the relay is switched to star position (pin 16) and the star time period starts. At the end of the delay (adjustable 50 - 130 ms), the relay is switched to delta position (pin 18) and will not release until power supply is in- At the end of the set time period, the relay returns to terrupted for at least 100 ms. If power supply is interrupted for at least 100 ms before the star time period has expired, the relay will not operate and the time circuit is reset to zero. The relay is ready for a new time period. Star time period Upper knob: Knob-adjustable on scale in seconds. Delay-time (Y-D) Lower knob: Knob-adjustable on scale in milliseconds. Wiring Diagrams EAB C T23 EAB C T40 115-230 V ~ 24 V L ~ Y µ 400 V ~ 115-230 V L D N Y ~ µ D N/L Operation Diagram ≥ 100 ms ≥ 100 ms ≤ 40 ms Power supply Relay ON (15-16) Y Relay ON (15-18) D 2 Specifications are subject to change without notice (26.10.99)