Square D – QO 150-Amp Frame Size Main Circuit Breaker for QO and Homeline Loa…

It accepts aluminum or copper #4 – 300 AWG feeder wire. To ensure safety, it is both listed and ANSI certified. The ANSI-certified and -listed unit is rated for 120/240 VAC and 22,000 AIR. These types of quality, industry exclusive products keep the Square D product ahead of the competition and are builders’ and electrical contractors’ first choice in electrical protection.