Safety Disconnect from Square-D to protect and isolate your solar PV array. Grid tie net metering solar power systems that connect to the grid require a safety disconnect. Square D safety disconnect rated at 1,200 amps.
Square D Safety Disconnect Model: HU368NR
Amps: 1,200 Amps
Poles: 2 or 3 for PV
National Electric Code (NEC), section 690.15, requires all solar PV arrays to have a disconnecting means to safely isolate the inverter from the PV power source. Most grid tie net metering utility grid-tie inverters that usee PV panel arrays with voltages above 250 VDC require a 600 VDC rated disconnect to perform this function.
Regarding inverters that do not include a DC disconnect, the Square D safety disconnect can be used. The Square-D 600 VDC handles one 600 VDC circuit per pole.
All Square-D 600 VDC disconnects are rated for disconnecting one circuit at full rated power using 2 poles in series. Use the Square D safety disconnect to isolate 3 solar PV arrays. Isolate 3 grid tie inverters through one Square D safety disconnect.
Solar PV grid tie utilities require an AC disconnect between a grid-tie inverter and the AC load center with a visible, and lockable handle. Use AC load centers to connect multiple inverters to a single disconnect with Square D.
Square-D breakers can be back-fed with the inverter outputs. Square D load center main lugs carry the combined outputs to be connected to the AC disconnect. Use Class R fuses of the proper voltage and amperage for fused disconnects. 600 Volt fuses will not fit into 240 Volt disconnects. 250 VAC/125 VDC fuses will not fit into 600 Volt disconnects.
Dimensions (Inches): 69.13 x 36.62 x 17.75
Weight: 44 lb.