DIHOOL Solar Disconnect Switch, 20A 2-Pole | DIN Rail Mount – Non-Polarized AC/DC Breaker for PV, RV, and Battery Systems

Powerful protection for modern solar and home systems

The DIHOOL Solar Disconnect Switch is a compact, DIN-rail ready device designed to shield critical circuits from overload and short circuits. Its flame-retardant enclosure and arc suppression magnet contribute to robust, reliable performance in a variety of environments, from small residential solar setups to mobile RV installations. Built for both DC and AC use, this switch handles a wide voltage range and offers fast disconnection when faults occur, helping you maintain safe operation without adding complexity to installation.

Key enhancements

• Arc-quenching magnet enables rapid arc extinguishing during faults.
• Flame-retardant enclosure enhances durability in electrical enclosures.
• Silver alloy contacts and pure copper windings provide reliable current handling.
• Compact dimensions (54 mm x 80 mm x 75 mm) fit neatly in 35 mm DIN rails.
• Includes 1 x DIN rail, 2 x screws, and 4 x copper crimp terminals for tidy installation.
• Non-polarized design allows wiring in either direction to reduce installation errors.
• Fast electromagnetic trip (FAST TRIP) interrupts faults quickly for enhanced safety.

Applications and versatility

Designed for both DC and AC environments, it supports 48-500 VDC or 90-480 VAC circuits and is suitable for 12-48 VDC systems as well. Use it with photovoltaic arrays, solar charge controllers, batteries, inverters, DC motors, and even RV or home electrical circuits.

• PV arrays and battery banks for safe isolation during maintenance
• Solar charge controllers and inverters for reliable protection
• DC motor protection and general AC circuits
• Bidirectional current protection in reversible drive setups

Real-world use cases

Installs neatly in a compact solar or transformer cabinet, enabling quick isolation of a solar bank during service. Its non-polarized design reduces wiring mistakes, while the rapid trip feature adds an extra layer of safety during fault conditions. The included hardware and copper terminals simplify wiring, making it a practical upgrade for compact installations where space is at a premium.

What you get and how to install

In the box, you’ll find the disconnect switch, a DIN rail, mounting screws, and copper terminals for a clean, secure connection. The unit is sized for standard 35 mm DIN rails and is straightforward to integrate into existing panels or enclosures.