It's rated for motor protection in AC networks and carries a 100 kA breaking capacity at 400 V AC per IEC 60947-2 — that means it can safely interrupt a fault current up to 100,000 amps without welding its contacts or blowing apart, which is what lets you put this breaker downstream of a transformer or a bus without needing a bigger upstream breaker to protect it. The thermal element handles overloads (slow, low-current events), while the magnetic element trips instantly at 74 A — that's 18.5 times the rated current, so it stays out of the way during a normal motor start but catches a bolted fault hard and fast. Motor power ratings run from 1.1 kW at 400 V up to 3 kW at 690 V, depending on the supply voltage and whether you're sizing for a star-delta or DOL start — the 4 A frame covers small pumps, fans, conveyors, and compressors in the fractional-to-small integral horsepower range.
It mounts horizontally or vertically, so you're not locked into one panel layout. Open-mounted is fine in a clean panel. Screw-clamp terminals accept up to two 6 mm² solid conductors or two 4 mm² flexible with ferrules. Tighten to 1.7 N·m — that's a standard screwdriver torque, nothing special.
The GV2ME08AE11TQ is certified to EN/IEC 60947-2 (circuit-breaker standard), EN/IEC 60947-4-1 (contactor and motor-starter standard), UL 60947-4-1, and CSA C22.2 No 60947-4-1. It also meets IEC/EN 60335-2-40 Annex JJ for heat-pump applications and IEC/EN 60335-1 Clause 30.2 for glow-wire resistance. Phase-failure sensitivity per IEC 60947-4-1 means it will trip on a lost phase, which is critical for protecting three-phase motors from single-phasing. Fire resistance is tested to 960 °C per IEC 60695-2-11, and the unit withstands 30 G shocks for 11 ms and 5 G vibration from 5 to 150 Hz — tough enough for a machine-tool panel or a pump skid that gets bumped.
That's already included in the package.