LV431951 Schneider Electric Molded Case Circuit Breakers (MCCB)

Out if stock but available for backorder.

Schneider Electric LV431951 is a Moulded Case Circuit Breaker (MCCB) with embedded earth leakage protection, part of the NSX250F Vigi sub-range. This 4-pole device features lug connection type and offers thermal protection for overload scenarios, magnetic protection against short-circuits, and earth leakage protection. It has a rated current of 200A, with a rated insulation voltage (Ui) of 800V. The protection settings are adjustable, offering over-current protection from 0.7 to 1.0 times the rated current (In), short-circuit pickup current adjustable between 5-10 times In, and a fully protected neutral pickup current of 1 times Ir. The rated impulse voltage (Uimp) is 8kV, and it has an adjustable residual current sensitivity ranging from 30mA to 10A. The trip current rating stands at 200 AT, with a frame current rating of 250 AF. It boasts a mechanical durability of 20,000 operations at no load and an electrical durability of 20,000 operations at 440Vac with half load and 10,000 operations at 440Vac with full load. The rated voltage for phase-to-phase is 690V, and all four poles are protected. The trip unit type is a TMD Interchangeable Thermal-Magnetic, adjustable, with a time delay for tripping adjustable between 0-800ms. It falls under utilisation category A.