C137, C163 and C164 series contactors are suitable for handling DC loads in the range of 40 A up to 140 A for the most common coil voltages up to 120 V. The contactors have double-break contacts, a compact design, and function most reliably.
Version “C” are single pole NO contactors with magnetic blowout, whereas version “H” are single pole changeover contactors fitted with an additional galvanically isolated NC contact. The switching devices can be used as main or auxiliary contactors.
Type of voltage | DC (AC upon request) |
Main contacts, configuration | 1x NO / 1x CO |
Nominal voltage Un | 110 V / 120 V |
Rated insulation voltage Ui | 150 V |
Rated impulse withstand voltage Uimp | 2,5 kV |
Pollution degreeOvervoltage category | PD3 OV3 |
Conv. thermal current Ith | Railway: 40 A – 80 A – 140 A Industry: 50 A – 100 A – 140 A |
Rated short-time withstand current Icw | 2.500 A @ 100 ms |
Breaking capacity | NO: 1,500 A max. @ 80 V DC CO: 800 A max. @ 80 V DC |
Aux. contact | SPDT (optional) |
Coil voltage Us | 24 / 36 / 48 / 72 / 80 / 110 V DC |
Coil tolerance | Railway: -30% ... +25% Industry: -30% ... +10% |
Mounting orientation | Horizontal: contact studs must point upwards Vertical: plasma exits must point upwards |
Temperature range | Railway: -25 °C ... +70 °C Industry: -25 °C ... +50 °C |
Mechanical endurance | >3 million cycles (C137 NC contact >2 million operations) |