The Hubbell Incorporated HBL400MW is a molded case circuit breaker configured as a single-pole device with a 400 A rating and a 600 V maximum voltage. The model designation is HBL400MW, situating this unit within Hubbell’s line of molded case breakers designed for higher-current applications in 600 V systems. With its 400 A, 600 V, single-pole specification, this device serves as a dedicated protection component for circuits where a straightforward, high-current interrupt is required in 600 V electrical distributions.
