DIHOOL 200A DC Circuit Breaker 500V — 2‑Pole Front‑Access Battery Disconnect with Thermal‑Magnetic Protection

DIHOOL 200 Amp DC Breaker is a front-accessible 2-pole battery disconnect and thermal-magnetic protection switch rated to 500V for solar, UPS, datacenter and battery bank systems.

This compact DC circuit breaker combines thermal-magnetic trip technology with a front-accessible mounting design so you can both protect and isolate high-current DC circuits quickly. Built for PV arrays, battery banks, uninterruptible power supplies and power stations, the unit interrupts overloads and short circuits while offering simple installation in compartments where space and accessibility matter.

How does this breaker protect my DC system?

The DIHOOL breaker uses a thermal-magnetic trip mechanism to respond to sustained overloads and abrupt short-circuit events. Thermal elements handle prolonged overcurrent, while the magnetic section trips instantly on high fault currents, preventing equipment damage and wiring failures.

• 200 A continuous rating with instantaneous magnetic trip for high fault currents
• 500 V DC insulation and switching capability for battery and PV applications
• Two-pole design isolates both positive and negative conductors for full circuit protection

Is it easy to install and access in cramped panels?

Yes — the breaker is sized and configured for front access and straightforward wiring in compact enclosures. The front-access terminals and panel-mountable form factor let you service and operate the switch without removing cabinetry or other components.

• Front-accessible terminal layout speeds maintenance and inspection
• Compact 2P dimensions: 65 mm x 150 mm x 69 mm fit tight compartments
• Mounting compatible with common DC combiner boxes and distribution panels

Which systems and scenarios is this switch best suited for?

Designed for direct-current environments, this breaker is ideal wherever batteries, photovoltaic arrays, UPS strings or power stations require reliable overcurrent protection and a means to isolate the main feed. It works well in both residential and commercial installations where DC protection is required up to 500 V.

• Photovoltaic (PV) array protection and DC combiner outputs
• Battery banks, power stations, and energy storage systems
• UPS DC distribution and datacenter battery backups

What electrical ratings and physical specs should I check before buying?

Confirm system voltage, continuous current demands and the available short-circuit current so the 200 A/500 V rating aligns with your design. Also verify enclosure space and terminal compatibility; the DIHOOL unit’s 65×150×69 mm footprint and two-pole configuration are optimized for many DC installations.

• Rated current: 200 A continuous
• Maximum DC voltage: 500 V
• Physical size: 65 mm × 150 mm × 69 mm, 2-pole package

Who is this for? Installers, system integrators and DIY professionals working on solar arrays, battery storage, UPS systems and power stations who need a reliable, compact DC breaker with thermal-magnetic trip behavior and front-access convenience. If you require a robust 200 A DC disconnect and overcurrent protector that fits tight spaces and isolates both conductors, this DIHOOL breaker is tailored for those applications.