Click to enlargeSquare D
Safety Disconnect
30 Amps



Protect your solar PV power system with proper safety equipment. Square D Safety Disconnect Model: HU361RB

AC/DC: Yes

Fused: No

Amps: 30 Amps

Poles: 2 or 3 for PV

National Electric Code, section 690.15, requires solar PV arrays to have a disconnecting means to isolate the inverter from the PV power source.

Square D safety Disconnect rated at 30 Amps.

NEC Utility grid-tie inverters that utilize PV arrays with voltages above 250 VDC require a 600 VDC rated disconnect to perform this function. For inverters that do not include a DC disconnect, one of these can be used.

Square-D 600 VDC 30, 60, and 100 A 3-pole safety switches are rated by the factory to handle one 600 VDC circuit per pole.

Square D 30 Amp switch is rated for 15 A Isc for non-fused and 12.8 A Isc for fused. Square D 60 A switch is rated for 48 A Isc for non-fused and 38 A Isc for fused. The 100 A switch is rated for 80 A Isc for non-fused and 64 A Isc for fused.

Square D used for disconnecting up to 3 PV arrays for 3 grid-tie inverters. All of the Square-D 600 VDC disconnects are rated for disconnecting one circuit at full rated power using 2 poles in series.

Often tilities require an AC disconnect between a grid-tie inverter and the AC load center, close to the AC service entrance, and with a visible and lockable handle. A 30 A /240 V disconnect works for up to 5 kW at 240 VAC and the 60 A disconnect works for up to 11 kW.

For larger solar PV systems use an AC load center to connect multiple inverters to a single disconnect.

Breakers can be back-fed with the inverter outputs and the load center main lugs will handle the combined outputs to be connected to the AC disconnect. Use Class R fuses of the proper voltage and amperage for fused disconnects. 600 V fuses will not fit into 240 V disconnects, and 250 VAC/125 VDC fuses will not fit into 600 V disconnects.

Dimensions (Inches): 14.88 x 6.63 x 4.48

Weight: 9.3 lb.






Square D Safety Disconnect 30 Amps HU36 053-02312Retail Price: $279.00Sale Price: $259.00
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