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Q390 - Siemens - 90 Amp Circuit Breaker Type_ HFD BR320 is a 3 PoleQ390 Siemens 90 Amp 3 Pole Circuit Breaker Siemens QP breakers provide easy plug in connections in Siemens enclosures and the time saving Insta Wire feature. Compatible with Siemens load centers. Specifications: Manufacturer : Siemens Family : Q QP Series Cat. No. : Q390 3 Pole 90 Amp 240 Volt Connection : Plug In Phase : 3 Interrupting Rating 10000 Ampere Dimensions (H x W x L): 3" x 3" x 3" Authentic Siemens Product CSA Approved and UL Listed