EPEPRO EPM1‑125Z 4P DC MCCB, Molded Case Circuit Breaker DC1000V 63‑125A 20kA for Solar PV Combiner Box, Battery Energy Storage and DC Distribution System

About this item

1. High Performance 4P DC MCCB for PV & Energy Storage EPM1‑125Z is a 4‑pole molded case circuit breaker designed for DC1000V solar PV combiner boxes, battery energy storage systems and industrial DC distribution networks. It provides reliable overload and short‑circuit protection for DC circuits, protecting PV arrays, batteries, inverters, busbars and distribution equipment.
2. DC1000V Wide Application & 63‑125A Selectable Rated up to DC1000V with current options from 63A to 125A, the EPM1‑125Z supports mid‑to‑large capacity PV and energy storage applications. It is suitable for commercial and utility‑scale solar combiner boxes, battery cluster protection and DC bus distribution.
3. 20kA High Breaking Capacity With a maximum short‑circuit breaking capacity of 20kA and service breaking capacity of 15kA, this DC MCCB can safely interrupt high fault currents, effectively reducing damage caused by short circuits and improving the safety of the entire DC system.
4. Specialized DC Arc Extinguishing Design The breaker is designed with optimized DC arc extinguishing performance, making it more reliable than general AC breakers under DC fault conditions. It helps quench arcs quickly and stabilize voltage during DC interruption.
5. Adjustable Trip Setting EPM1‑125Z supports adjustable trip settings, allowing system integrators to match protection thresholds according to actual load and cable capacity. This provides flexible coordination for PV string distribution, battery bank protection and DC distribution design.
6. Compact Structure & Easy Installation Compact molded case design saves installation space in PV combiner boxes and DC cabinets. It supports DIN rail and panel mounting, making it easy to install, commission and maintain in both OEM and retrofit projects.
7. Durable & Wide Temperature Performance Designed for stable operation in harsh DC environments, with an operating temperature range of -40℃ to +40℃. Robust mechanical structure and high‑quality electrical components ensure long service life and reliable performance.
8. Export‑Ready Packaging & OEM Support EPM1‑125Z is available with export‑ready packaging and supports OEM/ODM customization. It is an ideal choice for solar integrators, energy storage EPCs and industrial DC system projects.