{"product_id":"cutler-hammer-m343a-100a-3p-240v-circuit-breaker","title":"Cutler-Hammer M343A Circuit Breaker, 100A, 3-Pole, 240V","description":"\u003cdiv\u003e\n\u003cp\u003eThe Cutler-Hammer M343A Circuit Breaker delivers dependable overcurrent protection for demanding industrial panels. This model is built to safeguard your three-phase systems with precision, making it a reliable choice for service, maintenance, and replacement projects.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eKey specs at a glance\u003c\/strong\u003e: 100 A, 3-pole configuration, 240 V operation. The M343A is designed to protect three-phase circuits and the equipment they feed, helping prevent costly downtime from electrical faults.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eReliable three-phase protection\u003c\/strong\u003e for motors, feeders, and other 240 V loads that power your manufacturing lines and critical processes.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eQuick, compatible replacement\u003c\/strong\u003e option for existing installations that list the M343A as the part number, simplifying sourcing and stocking for maintenance teams.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart-number guided compatibility\u003c\/strong\u003e—verify fit by the M343A designation and ensure it meets your application requirements before installation.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eIndustrial-grade design\u003c\/strong\u003e built to endure the demands of ongoing service and frequent cycling in industrial environments.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eStreamlined procurement\u003c\/strong\u003e with a proven model used across a range of industrial applications, reducing guesswork when planning panel upgrades or replacements.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eThis 3-pole, 240 V circuit breaker is ideal for electrical professionals, panel builders, and maintenance teams working with three-phase equipment in manufacturing facilities, processing plants, and large commercial installations. It delivers the protective performance you need without complicating your inventory or install process.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eWhy this matters\u003c\/strong\u003e: protecting three-phase circuits at 240 V helps prevent motor stalling, equipment damage, and unscheduled shutdowns. The M343A’s 100 A rating ensures appropriate protection for high-current loads while enabling safe, controlled tripping when faults occur.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eHow to verify compatibility\u003c\/strong\u003e: confirm the part number (M343A) matches your panel or equipment requirements, and ensure the 100 A, 3-pole, 240 V specifications align with your load profile. If you need help matching a part number or confirming compatibility, message us and we’ll assist you in making the right selection.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"AmpState","offers":[{"title":"Default Title","offer_id":46415543337122,"sku":"M343A","price":460.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/master_generic_513d6710-3734-4b27-839d-f68e6f4b470a.png?v=1765492974","url":"https:\/\/www.ampstate.com\/products\/cutler-hammer-m343a-100a-3p-240v-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}