High Voltage DC Relay type GPR-M400-A-BI, 1000 VDC, 400A, Bi-directional.


GPR-M400-A-Bi DC-contactor from LS Electric

High Voltage DC-contactor for operating up to 1000 VDC, 400A, bi-directional. The A-type relay has an additional auxiliary contact.


Number of poles 1 pole, Normally Open (NO)
Operating Voltage DC 1000V
Rated Impulse withstand voltage, Uimp 4 kV
Conventional thermal Current 400A
Short time withstand current 2 min, 750A – 15 min, 500A
Mechanical Durability  (3600 operations an hour) 200.000 cycles
Electrical Durability 100A, 1000VDC, 6,000cycles
220A, 800VDC, 1500cycles
(at 360cycles/Hr)
Voltage drop [ initial] 0,04V@20A
Operating time Max. 30ms
Release time Max. 10ms
Temperature Range -40 ~ 85℃
Humidity 5-95% R.H.
Insulation strength (Initial) Min. 100MΩ(@1000VDC)
Size, W × H × D( mm ) 100×58×99
Weight 800 g
Certification CE, UL, cUL,

To get a more deep overview of the total GER and GPR product line, please download one of the pdf’s below:

Download Leaflet GPR Relays

Download Extended Catalog GPR-Series