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Siemens replacement QO breakers are UL listed for use in Square D QO brand load centers and are ideal for replacement of existing breakers or if expansion circuits are required. These 3/4 in. breakers snap on to the QO type bussing. All QD breakers are supplied with load side connectors suitable for 60/75C wire and are calibrated for 40C maximum ambient applications. Siemens QD circuit breakers are available in 15 to 60 Amp, single and double pole configurations and are rated at 120/240-Volt AC.
Economical alternative for replacement or in new c