The Schneider GV2ME03A is a 3-pole motor circuit breaker from the TeSys Deca range, built for dedicated motor protection under IEC/UL 60947. Its 0.4 A thermal-magnetic trip unit covers fractional-horsepower motors (0.12 kW at 400 V, 0.18 kW at 400 V, 0.37 kW at 690 V) in a single housing. The 100 kA breaking capacity across 230–690 V AC gives you fault clearance almost anywhere on a low-voltage network, so you can hold SCCR without a separate fuse or limiter.
The 0.4 A line-rated current is the setting you apply to match the motor full-load amps — do not confuse with the magnetic trip threshold (5.8 A), which handles short-circuit only. Power dissipation per pole is 2.5 W. Breaking capacity of 100 kA holds at every standard voltage up to 690 V. Utilization category A, AC-3, and AC-3e per IEC 60947 means it is rated for normal starting duty of motors.