Cnsoltree 4P DC MCB industrial solar circuit breaker front view1 / 7

Circuit Breaker

MCB 4P DC 6鈥?3A Circuit Breaker

The Cnsoltree 4 Pole DC MCB delivers the highest level of DC circuit isolation available in a compact DIN-rail package. Designed for industrial-scale solar plants, utility-grade energy storage, and bipolar DC distribution networks, the four-pole configuration allows engineers to protect both the positive and negative buses of a bipolar system 鈥?or to achieve the maximum series voltage rating for extra-high-voltage DC strings. All four poles share a common linked toggle that guarantees simultaneous disconnection, a safety requirement in large installations where maintenance personnel must achieve a verified zero-energy state. With four independent enhanced magnetic arc chambers, the breaker can handle the extreme energy of industrial DC faults at up to 6kA. Each unit carries CE, T脺V PV, and IEC 60947-2 certification and is backed by Cnsoltree's 18-year track record of 100% electrical testing. Available in 6A through 63A with full OEM customization, it is the professional's choice when no compromise on DC safety is acceptable.

Key Features

  • 4-pole simultaneous disconnection 鈥?guarantees verified zero-energy state for safe maintenance lockout.
  • Bipolar DC network compatible 鈥?protects both positive and negative buses in bipolar distribution systems.
  • Maximum series voltage capability 鈥?four poles in series for extra-high-voltage DC string protection.
  • Industrial-grade 6kA breaking capacity 鈥?handles extreme fault energy from large PV arrays and battery farms.
  • Four independent arc chambers 鈥?each pole extinguishes DC arcs independently for redundant safety.
  • CE + T脺V PV + IEC 60947-2 鈥?fully certified for utility-scale solar and industrial DC applications.
  • Complete OEM/ODM program 鈥?custom ratings, branded enclosures, and project-specific documentation available.

Samples available · OEM pricing on request · Ships worldwide

Technical Specifications

Poles4P
Rated Current6A, 10A, 16A, 20A, 25A, 32A, 40A, 50A, 63A (DC)
Rated Voltage500V DC
Breaking Capacity6 kA DC
Trip CurveC (DC)
Housing MaterialFlame-Retardant Thermoplastic, UV Resistant
Mechanical Life20,000 operations
Electrical Life10,000 operations
MountingDIN-rail 35mm
CertificationCE, RoHS, IEC 60947-2, T脺V (for PV)
Mounting MethodDIN Rail Mounting (35mm)
Contact MaterialSilver Alloy Contacts
ApplicationSolar PV System, DC Power Distribution, Marine Electrical System
Arc Extinguishing SystemEnhanced Magnetic Arc Quenching for DC
Wiring MethodScrew Terminal, Compatible with Soft Silicone Wire (with Copper Crimp)
Operating Temperature-25掳C to +70掳C
IP RatingIP20