The GV4L12N is a TeSys Deca motor circuit breaker from Schneider Electric, rated 12.5 A continuous (In) and built for 3-pole motor protection. The 12.5 A frame size means it's sized for a motor drawing around that full-load current—check the motor nameplate FLA against this number, not the motor power kW, because the kW table (3 kW at 400 V, up to 11 kW at 690 V) depends on your line voltage and motor efficiency. The magnetic trip is adjustable 75–175 A, so it handles inrush without nuisance tripping on a motor that size. Breaking capacity is 100 kA Icu at 240 V AC, 50 kA at 415 V, and 15 kA at 525 V—all per IEC 60947-2. That's high fault-current headroom for a 12.5 A device; it clears a bolted fault without upstream fuses needing to open, which simplifies coordination in a panel with a 50 kA SCCR requirement at 415 V. The utilisation category is AC-3 (IEC 60947-4-1), meaning it's rated for switching motor loads—starting and stopping under load, not just isolation.
This is a panel-mount device with EverLink BTR screw terminals—top accepts 1.5–70 mm² solid, bottom up to 95 mm² solid. Tightening torque is 9 N·m for the larger cable range (16–95 mm²), 5 N·m for 1.5–10 mm². IP40 front-of-panel protection means it's fine inside a clean enclosure but not for washdown zones. Mechanical durability is 40,000 cycles, electrical durability also 40,000 cycles at AC-3 at 440 V at full load current (In). Maximum operating rate is 25 cycles per hour—fine for a pump or conveyor start/stop duty, but not for high-speed jogging. The ambient operating range is -25 to 70 °C, storage -50 to 85 °C, and it's rated for operation up to 5000 m altitude without derating. Vibration tolerance is ±1 mm at 2–13.2 Hz and 0.7 gn at 13.2–100 Hz per IEC 60068-2-6, so it holds up on a panel mounted to a motor skid or compressor base.