The GV3L501 is a 3-pole motor circuit breaker from the TeSys Deca range, rated 50 A continuous (Ith 50 A) with a magnetic trip threshold of 700 A. That magnetic trip — not a thermal bimetal — means it reacts to short-circuit faults only; overload protection is handled by a separate thermal overload relay downstream. For a 400/415 V 50/60 Hz supply, it carries a motor load up to 22 kW. The 100 kA Icu at 230/240 V and 50 kA Icu at 400/415 V tell you this breaker can clear a bolted fault at those levels without rupturing — critical for SCCR compliance on a panel nameplate.
The rotary handle gives a local on/off/trip indication — no separate control power needed. Horizontal or vertical mounting is permitted, which simplifies layout in a crowded cabinet.
