DC Isolator Switch

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DC Isolator Switch

ELEHUB’s DC Isolator Switch allows for safe isolation of DC circuits, essential for maintenance and emergency shutdowns in energy storage and photovoltaic systems. It provides robust protection, ensuring system safety during disconnection procedures.

Types of DC Isolator Switches in ELEHUB

EHS1-EL 32A 1200V IP66 Enclosure DC Disconnector Switch

4P 1200V 32A DIN Rail Mounted DC Disconnector Switch

EHS7-DCR 4P 40A 1500V DC Isolator Switch

EHS7-DBR 4P 50A 1500V DC Isolator Switch

EHS7-PMR 13A 6P 1500V DC Isolated Switch

EHS7-HMR 32A 4P 1500V DC Isolator Switch

What is a DC isolator switch?

A DC isolator switch is a safety device used to disconnect the direct current (DC) supply in a solar power system or other DC electrical circuits. It is typically installed between the solar panels and the inverter to isolate the panels for maintenance, repair, or emergency situations. The switch ensures the safe disconnection of high DC voltages, preventing electrical hazards or damage to equipment. It is designed to handle the unique challenges of DC circuits, including high current loads and arc formation. DC isolator switches are commonly found in solar photovoltaic (PV) systems to enhance safety and compliance with regulations.

How to wire a DC isolator switch?

To wire a DC isolator switch:

1. Turn Off Power: Ensure the solar panels are not generating power.

2. Prepare the Cables: Strip the ends of the wires.

3. Connect Wires: Connect the positive cable to the positive terminal of the isolator switch and the negative cable to the negative terminal.

4. Repeat for the Other Wire: Connect the remaining wire from the solar panel to the other input terminal, and to the inverter at the output terminal.

5. Tighten Connections: Secure all connections with a screwdriver.

6. Test and Close: Verify with a multimeter, then close the isolator switch.