SCHNEIDER ELECTRIC LV438373 COMPACT NSX 3-POLE MOLDED CASE CIRCUIT BREAKER (MCCB)

SCHNEIDER ELECTRIC LV438373 is a 3-pole ComPact NSX series molded case circuit breaker, designed for low-voltage power distribution protection in marine, industrial and offshore electrical switchboards. The 3-pole circuit breaker integrates thermal-magnetic or MicroLogic electronic trip unit, offering dual protection against overload and short-circuit faults for main and branch power feeders. The 3-pole circuit breaker provides adjustable overload current threshold and instantaneous short-circuit pickup setting, with built-in fault indication to visually distinguish overload and short-circuit trip events. The 3-pole circuit breaker supports optional accessories including auxiliary contact, fault contact, shunt trip, undervoltage release and motor operator for remote control and status feedback to ship automation and alarm systems. The 3-pole circuit breaker adopts quick-connect terminal options, suitable for copper busbar or cable wiring in marine switchgear cabinets.

SCHNEIDER ELECTRIC LV438373 is built with high-strength flame-retardant molded housing, IP40 front panel protection when fitted in switchboard compartment. The power distribution MCCB meets IEC 60947-2 standard, high breaking capacity to clear short-circuit current rapidly and avoid damage to downstream cables, motors and control equipment. The power distribution MCCB has robust mechanical structure to withstand vibration, humidity and temperature fluctuation onboard vessels; it can be fitted with marine type approval versions for shipboard power distribution cabinets. The power distribution MCCB supports fixed mount or plug-in mount installation for convenient maintenance and spare replacement.

SCHNEIDER ELECTRIC LV438373 is widely installed on cargo ships, tankers and offshore platforms for main switchboard, auxiliary power panel and motor feeder protection systems. The industrial spare part can replace faulty MCCBs to restore low voltage power distribution overload and short-circuit protection rapidly. The industrial spare part matches original mechanical mounting dimensions and wiring specifications for direct cabinet replacement. The industrial spare part has clear part marking for fast identification and stock management. The industrial spare part reduces vessel downtime during switchboard overhaul and marine survey inspection.