CT – AC and bi-directional DC power contactorCU – Double-pole DC power contactor
CT – AC and bi-directional DC power contactorContactorsRequest
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CU – Double-pole DC power contactorContactorsRequest
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Series CT Series CU
Type of voltage DC (bidirectional), AC (f < 60 Hz) DC (unidirectional)
Main contacts, configuration 1 x SPST-NO or 2 x SPST-NO 2 x NO
Nominal voltage Un 1,500 V or 3,000 V 1,500 V
Rated operating voltage Ue 1,800 V or 3,600 V 1,800 V
Rated insulation voltage UNm 3,000 V or 4,800 V
Rated impulse withstand voltage UNi 15 kV or 30 kV
Pollution degree
Overvoltage category		 PD3 / OV3
Conv. thermal current Ith 400A, 800A oder 1,100A 1000 A
Component category A2
Rated short-time withstand current Icw series-specific, see catalogue e.g. 2 x 450 A fuse (type gPV) connected in parallel
Contact material main contacts AgSnO2 AgSnO2
Aux. contact 1x S870 (a1), 1x S870 (b0), 2x S826 or 4x S826 4 x SPDT
Coil voltage Us 24, 36, 72, 110 V DC 24, 36, 72, 110 V DC
Coil tolerance -30% ... +25% -10% ... +10%
Coil power consumption series-specific, see catalogue Pull-in coil approx. 150 W, holding coil approx. 10 W
Coil suppression Suppressor diode / double coil controller (DCC)
Mechanical endurance series-specific: 300.000 min. / 2.000.000 max. operating cycles 2 million operating cycles
Vibration / Shock (IEC 61373) Category 1, class B
Mounting orientation horizontal / vertical horizontal/vertical
IP rating (IEC 60529) IP00 IP00
Temperature range -40 °C ... +70 °C -40 °C ... +70 °C
Storage temperature -40 °C ... +85 °C -40 °C ... +85 °C
Weight series-specific, see catalogue 18,000