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Fast Shipping Siemens MP390 – 90A 3 Pole Molded Case Circuit Breaker
Original price was: $113.87.$47.83Current price is: $47.83.
For orders under $150.00, a shipping fee of $12.99 applies.
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Part of the legacy Murray product line, this 90-amp, three-pole breaker delivers reliable thermal-magnetic protection for commercial and industrial electrical systems. It mounts into compatible Murray or Siemens load centers, providing a seamless fit for existing panelboards. Featuring a 10kA interrupting capacity at 240VAC, the unit includes common trip functionality and carries an HACR rating for heating and cooling equipment. Note that this model is officially replaced by the Siemens Q390.
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