{"product_id":"westinghouse-ma3150s-circuit-breaker","title":"Westinghouse | MA3150S | Circuit Breaker | 150A | 3-Pole | 600V","description":"\u003cdiv\u003e\n\u003cp\u003eWestinghouse MA3150S circuit breaker offers dependable overcurrent protection for three-phase electrical systems. With a 150A rating, 3-pole configuration, and a 600V maximum, this device is built to meet the demands of commercial and light industrial panels while delivering reliable uptime for critical equipment.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\u003cstrongprecise specifications for seamless replacement\u003e: 150A, 3-pole, 600V. The part number MA3150S is your most reliable reference for compatibility, especially when matching existing panel gear during maintenance or retrofit projects.\u003c\/strongprecise\u003e\u003c\/li\u003e \u003cli\u003e\u003cstrongtargeted use cases\u003e: Ideal for maintenance, retrofit, and replacement needs where exact spec alignment is required to protect feeders and downstream equipment in three-phase installations.\u003c\/strongtargeted\u003e\u003c\/li\u003e \u003cli\u003e\u003cstrongdedicated for demanding environments\u003e: Designed to perform in commercial electrical rooms and industrial distribution panels where consistent trip performance helps minimize downtime and protect wiring and connected loads.\u003c\/strongdedicated\u003e\u003c\/li\u003e \u003cli\u003e\u003cstrong installation readiness\u003e: This breaker is meant to slot into panels that call for a 150A, 3-pole, 600V device, making it a practical choice when upgrading existing systems or stocking a spare for service outages.\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eWhy this Westinghouse MA3150S stands out is its clear focus on exact-spec replacement. Rather than guessing at compatibility, you can rely on the MA3150S to align with your panel’s labeling and electrical characteristics, ensuring a straightforward swap that preserves system protection and electrical code alignment. For engineers and maintenance teams, this means faster outages resolution, fewer field-fit uncertainties, and a cleaner path to code-compliant distribution.\u003c\/p\u003e \u003ch3\u003ePractical guidance for use\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\u003cstrongconfirm fit and ratings before ordering\u003e: Verify that your panel requires a 150A, 3-pole, 600V device and that the MA3150S form factor matches your mounting and bus connections.\u003c\/strongconfirm\u003e\u003c\/li\u003e \u003cli\u003e\u003cstrongplan for replacement scenarios\u003e: Keep a spare MA3150S on hand in critical facilities to reduce downtime during equipment refreshes or panel upgrades.\u003c\/strongplan\u003e\u003c\/li\u003e \u003cli\u003e\u003cstrongconsider the broader system impact\u003e: Align this breaker with upstream protection schemes and ensure downstream circuits remain within conductor ampacity and thermal limits to maintain overall safety and reliability.\u003c\/strongconsider\u003e\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eIn summary, the Westinghouse MA3150S is a purpose-built solution for professionals who need a precise, compatible 150A, 3-pole, 600V circuit breaker for maintenance, retrofit, or replacement. Its targeted spec messaging—not just generic capability—helps you keep panels operating smoothly, protect essential loads, and minimize risk during electrical work.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Westinghouse","offers":[{"title":"Default Title","offer_id":46427175714978,"sku":"MA3150S","price":510.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/master_generic_a0994f42-7fad-49d1-911a-c2784022b8c9.png?v=1765492979","url":"https:\/\/www.ampstate.com\/products\/westinghouse-ma3150s-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}