The GV4LE12S6 is a 3-pole motor circuit breaker from the TeSys GV4 series, rated 12.5 A continuous. That 12.5 A is the thermal setting — it protects the motor feeder, not the motor itself, so pair it with a separate overload relay downstream. The magnetic trip range of 75…175 A handles inrush without nuisance tripping on DOL starts. Breaking capacity hits 120 kA Icu at 240 V AC and 100 kA at 415 V AC per IEC 60947-2. Rated for motor duty in AC-3 utilisation category per IEC 60947-4-1, so it switches 3 kW at 400 V and up to 11 kW at 690 V. The electrical durability is 40,000 cycles at full AC-3 load — that's the mechanical life too, so it's matched for frequent switching applications like conveyor or pump cycling.
The IP40 front panel protection means it's fine inside a standard enclosure but not for washdown areas. Operating altitude goes to 5000 m, so it works in high-altitude installations without derating. Terminals accept lugs or ring terminals — torque to 9 N·m for cables 16…95 mm² on the line/load side, and 5 N·m for 1.5…10 mm² on the control wiring. The toggle control gives a clear visual indication of the contact position for isolation duty (it's marked suitable for isolation per IEC 60947-1).