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Siemens BL B390 Bolt-On Silkscreen Circuit Breaker
Siemens BL B390 Bolt-On Silkscreen Circuit Breaker
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Description:
The Siemens BL B390 Bolt-On Silkscreen Circuit Breaker is a 3-pole, 90-amp protection device rated for 120/240-volt circuits. It features bolt-on mounting and silkscreen labeling for clear circuit identification, and its 3-pole design provides protection across three conductors in typical 3‑phase or multi‑wire installations. The BL B390 designation identifies this specific Siemens ITE lineage within the bolt-on silkscreen family, delivering a straightforward option for overcurrent protection in compatible electrical panels that require a 90A, 3-pole breaker. Use this breaker where a 120/240V, 3-pole bolt-on device is specified or supported by the panel configuration.
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