{"product_id":"nzmh4-40-cna","title":"Moeller NZMH4-40-CNA - 40A, Circuit Breaker","description":"\u003cdiv\u003e\n\u003cp\u003eMeet the Moeller NZMH4-40-CNA 40A circuit breaker — a purpose-built overcurrent protection device designed to keep power distribution and control systems safe in demanding environments. With a precise 40 A rating, this breaker acts as a reliable safeguard against overloads and short circuits in busy electrical spaces.\u003c\/p\u003e \u003cp\u003eDesigned for panelboards, switchboards, control panels, and OEM equipment, the NZMH4-40-CNA integrates neatly into existing distributions. Whether you’re wiring a new panel for a manufacturing line or protecting critical OEM machinery, this breaker provides dependable protection and safe operation where it matters most: distribution panels and motor control centers.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eCurrent rating:\u003c\/strong\u003e 40 A — precise protection for your circuits.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eBreaker type:\u003c\/strong\u003e Circuit Breaker — reliable interruption when overloads occur.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eIdeal applications:\u003c\/strong\u003e panelboards, switchboards, control panels, and OEM equipment.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eBest-fit environments:\u003c\/strong\u003e industrial, commercial, and OEM installations needing dependable overcurrent protection.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eCore benefit:\u003c\/strong\u003e helps prevent damage to downstream devices and reduces downtime by quickly clearing faults.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eUse cases to consider:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eNew panel assembly in manufacturing or processing facilities where robust protection is essential.\u003c\/li\u003e \u003cli\u003eOEM equipment integration where a trusted, compatible 40 A protective device is required.\u003c\/li\u003e \u003cli\u003eUpgrades to existing distribution panels and motor control centers to improve protection coordination and safety margins.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eWhy choose this Moeller breaker over generic options? The NZMH4-40-CNA is built to deliver steady, predictable protection in demanding environments. Its 40 A rating is well-suited for protecting feeders and linked equipment without unnecessary nuisance trips, helping keep production lines running smoothly.\u003c\/p\u003e \u003cp\u003eIn short, for engineers and technicians responsible for safe, reliable electrical protection in panelboards, switchboards, control panels, and OEM setups, the Moeller NZMH4-40-CNA 40A circuit breaker is a precise, dependable choice that supports long-term equipment health in distribution and motor control centers.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Moeller","offers":[{"title":"Default","offer_id":46390525329570,"sku":"NZMH4-40-CNA","price":244.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/circuit_breaker_generic_9ceb04e2-eceb-46d8-b381-1460d3006e5c.png?v=1765376682","url":"https:\/\/www.ampstate.com\/products\/nzmh4-40-cna","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}