Relay contactor 400A 72V normally open

The ZJ400D contactor is an SPST (single-pole single-pass; normally open type) DC contactor, the ZJ400D has double normally open main contacts with silver alloy contact tips that are weld-resistant, wear-resistant and have excellent conductivity. ZJ400D is a Unicoil winding contactor. Rated current of the main load of the contact circuit (amperes): 400A Dielectric strength (volts): 50 Hz, 1000 V AC, 1 min. Main contact current drop at 400A: ≤ 80 mV Dimensions (LxWxH): 104.5 x 65 x 106 mm Installation: two mounting holes 6.5 mm in the bracket; step-row: 63 mm Continuous working time: 8 hours Mechanical service life: 100,000 times Electric service life: 2,000,000 times