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DC Contactors for frequency inverters
GFDC series DC contactor is used for DC circuits with rated DC working voltage up to DC48V and working current up to 800A. The products are mainly used in frequency inverters, energy storage welding machines, electric heating and other occasions. When the working voltage is connected to the circuit above DC600V, it is suitable for switching the buffer resistance of the main circuit of the inverter.8. Operating frequency: no more than 1200 times per hour.
Paramters
Type | GFDC-100 | GFDC-200 | GFDC-265 | GFDC-400 | GFDC-600 | GFDC-800 | |
Rated insulation voltage | 1500 V | ||||||
Power frequency withstand voltage | 3500 V | ||||||
Main circuit (DC) | Nominated thermal current Ith(A) | 100 A | 200 A | 265A | 400A | 600A | 800A |
Rated working voltage | DC48V | ||||||
Rated working current | 100 A | 200 A | 265A | 400A | 600A | 800A | |
Voltage drop while contacting | Less than 80 MV(100A Load) | ||||||
Coil | Coil voltage | 220V or 380VAC | 24VDC | ||||
Pull in voltage | 85%—110% Us | ||||||
Release voltage | 20%—75% Us | ||||||
Pull in power | 76VA | 110VA | 230VA | ||||
Maintain power | 10VA | 11VA | 22VA |