At a glance – what fits your BOM
The GV4LE50S is a 50 A, 3-pole motor circuit breaker from Schneider's TeSys Deca range. It combines motor protection (AC-3) and circuit-breaker isolation (Category A per IEC 60947-2) in a single grey (RAL 7016) housing. The magnetic-electronic trip unit provides adjustable instantaneous pickup between 300 and 700 A – enough to handle motor inrush without nuisance trips on smaller sliding-vane or screw compressors. Breaking capacity hits 120 kA at 240 V and still holds 30 kA at 500 V, so it fits most 400 V MCCs without an upstream current-limiting fuse for high-fault points. Continuous duty per IEC 60947-4-1, meaning no extra derating for a full-load motor run. EverLink screw terminals accept up to 95 mm² solid on the bottom and 70 mm² flexible on top – that's a single cable per phase, no need for parallel runs on a 50 A branch. Tightening torque is 9 N·m for the larger cables, 5 N·m for 1.5–10 mm² taps.
Sourcing & lifecycle – current and orderable
No official successor listed, so the GV4LE50S is the current revision for the 50 A TeSys Deca slot. If you are sourcing against an older machine's parts list, this is what the panel expects. I source this from the regular Schneider distribution channel. Lead times vary by quantity and your region – send me an RFQ and I'll get you the real ship date. MOQ is one piece, but if you need a dozen on a short wire, let's talk.
Dimensional & mounting fit
The GV4LE50S measures 155 mm high × 81 mm wide × 116 mm deep. It mounts in any position (no derating for horizontal or vertical plane), and the IP40 front panel shrugs off incidental dust in a panel environment. IK07 impact rating – tough enough for a tool drop.
Performance & coordination
Electrical endurance is rated at 5000 cycles for AC-3 closing and opening at 415 V – typical for a MCCB-class motor circuit breaker on a duty cycle of 25 cycles per hour. Mechanical durability reaches 40,000 cycles, so it outlives most panel maintenance intervals. Suitability for isolation is confirmed to IEC 60947-1, so it can be used as a service disconnecting means on a motor branch, eliminating a separate disconnect switch. The toggle control (green/red indicator) gives clear on/off status. Power dissipation per pole is 6.1 W.
Environmental & compliance notes
That covers most indoor installation sites in temperate and cold climates; for hot desert conditions, keep ambient below 70 °C or derate per IEC curve. Fire resistance tested at 960 °C per IEC 60695-2-11; no drip/smoke issues if a fault arc hits the housing. Altitude rating to 5000 m – no pressure to switch to a different frame for high-altitude sites. Climate withstand per IACS covers tropical and high-humidity storage during shipment or site standby.