Schneider Electric GV4PE50B TeSys GV4 3P 50 A 25 kA Electronic Motor Protection Circuit Breaker (MPCB)

The Schneider Electric GV4PE50B is a 3-pole TeSys GV4 motor circuit breaker rated 50 A continuous current with a 25 kA breaking capacity (Icu) at 380-415 V AC. It provides thermal-magnetic protection with electronic motor-protection functions for 3-phase motors from 11-22 kW at 400 V, with a 20-50 A thermal setting range and toggle start-stop control.

Technical Specifications

Certifications & Standards

• IEC 60947-2
• UL 60947-4-1
• CSA C22.2 No 60947-4-1
• CCC

Selection Notes

Beyond the 20-50 A thermal dial, the electronic trip unit adds fixed-pickup short-time delay protection (Isd at 13 x Ir), phase unbalance and phase-loss protection, and ground-fault protection, none of which are field-adjustable. The trailing B in the catalog number identifies the breaking-capacity class Schneider assigns within the GV4 range (B/N/S step up from economy to high short-circuit withstand); this unit falls in the economy 25 kA tier, so it should be matched to the prospective short-circuit current at the installation point rather than swapped for a lower class to save cost on a feeder with higher fault levels. For the 50 A frame, internal mounting positions accept OF/SD auxiliary contact blocks and MN/MX voltage trip units without changing the breaker's footprint, which keeps a panel design consistent across the motor power range it covers.