Eaton N4-4-1250-S15-DC NZM4-XR

The N4-4-1250-S15-DC is a 4-pole DC switch-disconnector from Eaton Moeller NZM4 frame, rated 1250A, 1500VDC, and NZM4-XR is the matching remote motor operator accessory for remote electrical on/off control. This N4-4-1250-S15-DC is designed for DC energy storage, solar PV and high-voltage DC distribution systems, it provides visible isolation gap and does not include overcurrent trip protection. The suffix S15-DC stands for 1500VDC DC version.

This N4-4-1250-S15-DC complies with IEC 60947-3 standard, supports high DC short-circuit making capacity. The NZM4-XR motor operator can be fitted onto the disconnector, enabling remote control from PLC and SCADA, while local manual operation is still available. It can be equipped with auxiliary contacts and alarm contacts for status feedback and interlock circuits. The heavy-duty contact structure is optimized for DC arc extinction, suitable for large battery energy storage and central PV inverter cabinet main isolation.

The N4-4-1250-S15-DC is widely used in energy storage systems, large solar power stations and DC charging station main switch cabinets. The NZM series is Eaton’s current mainstream molded case platform. Many energy system integrators and maintenance teams stock the N4-4-1250-S15-DC plus NZM4-XR motor operator set for cabinet construction and emergency replacement.