The Schneider Electric C114050LS is a ComPacT NSXm 50NA switch disconnector, 4 poles, rated 50 A in AC-22A and AC-23A utilisation categories at 690 V AC. It's a fixed-mount unit that clips onto a 35 mm symmetrical DIN rail or a backplate, so it fits standard panel layouts without extra bracketry.
What the ratings mean for fit
The 50 A rating in AC-22A (mixed resistive and inductive loads) and AC-23A (motor switching) tells you this disconnector handles motor starts and general distribution loads up to that current. The 690 V AC operational voltage covers 400 V and 480 V systems with headroom. It's certified as suitable for isolation per EN/IEC 60947-3, so you can use it as a visible-break disconnect for safe maintenance — the contact position indicator confirms open or closed state. Short-time withstand current is 900 A for 1 s or 3 s, and 200 A for 20 s — that's the fault current the switch can ride through without welding closed. Making capacity is 1.28 kA alone, or 150 kA when backed by an upstream circuit breaker, which matters for coordination studies. IP40 protection means it's safe from tools and small wires but not washdown — fine for dry indoor panels. IK07 impact rating handles accidental tool drops. Pollution degree 3 per IEC 60664-1 suits industrial environments with conductive dust or condensation.
Mounting and wiring
Mounts on 35 mm DIN rail or a backplate. The EverLink lug terminals accept 2.5 to 70 mm² flexible copper, or up to 95 mm² rigid copper/aluminium — that's a wide range for panel feed-through or motor circuit wiring. Connection pitch is 27 mm, so plan your busbar spacing accordingly.