Photovoltaic switch disconnectors

What is a PV disconnect switch?

PV disconnect switches provide critical electrical disconnection and rapid shutdown capabilities in solar installations. This guide covers proper PV disconnect sizing, selection, installation, and maintenance. GRL manufactures UL-listed PV disconnect switches up to 1500VDC and 630A. We provide:

Why do you need a solar switch disconnector?

In any solar setup, safety is a must. PV switch disconnectors are an essential component of any solar design. A PV disconnect stops the flow of DC or AC power, depending on where it’s located. Whether you’re performing maintenance or equipment is malfunctioning, a PV disconnect protects people, equipment, and structures. What is a PV Disconnect?

Do you need a PV switch disconnector?

A PV disconnector is also helpful during severe weather. Whether you’re experiencing tornadoes, lightning storms or hurricanes, turning off the DC power can protect the inverter and other equipment. If you are experiencing flooding, turn off AC and DC power. PV switch disconnectors are a necessary component in any solar setup.

Do solar panels have a disconnect?

Most solar setups contain two PV disconnects. The first, a DC disconnect, is located between the solar panels and the inverter. As DC power runs through the system, the PV disconnect can interrupt the power if needed. The AC disconnect is located between the inverter and the electrical grid. It can stop the AC power before it reaches the grid.

Do solar panels need a DC disconnect?

Many building codes now require that most solar setups include PV disconnectors. Some even require the PV disconnects to have rapid shutdown capabilities as an added safety measure. The DC disconnect connects the solar panel output and the inverter box. In many cases, it’s mounted to the side of the building.

What does a PV disconnector do?

One of the main functions of a PV disconnector is to stop the flow of power to different system components. Electricity can be fatal, so cutting power from a component before working on it is essential. If your solar power equipment malfunctions, you’ll either have to fix it or hire an electrician.