{"product_id":"ebr1034eh70-100a-4p-480v-circuit-breaker","title":"EBR1034EH70 100A 4P 480V Circuit Breaker, NEMA 3R | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eIntroducing the EBR1034EH70 — a 100 A, 4-pole, 480 V circuit breaker crafted for dependable protection in panelboards, load centers, and electrical distribution assemblies. Built to perform in a range of environments, this unit is designed to keep circuits safe in both controlled indoor spaces and exposed outdoor locations thanks to its NEMA 3R enclosure rating.\u003c\/p\u003e \u003cp\u003eIdeal for retrofit projects and maintenance planning where the part number must stay consistent, the EBR1034EH70 streamlines replacements in aging infrastructures and documented configurations. This 4-pole breaker supports three-phase systems with a neutral, delivering coordinated interruption to protect conductors and downstream equipment without compromising system timing.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage:\u003c\/strong\u003e 100 A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePoles:\u003c\/strong\u003e 4\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage:\u003c\/strong\u003e 480 V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eEnclosure rating:\u003c\/strong\u003e NEMA 3R (weather-resistant, suitable for outdoor or damp environments)\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eProduct type:\u003c\/strong\u003e Circuit Breaker\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart number:\u003c\/strong\u003e EBR1034EH70\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eWhy this matters in real-world usecases: the EBR1034EH70 provides robust protection for commercial and light industrial installations, where reliability is non-negotiable and downtime is costly. Use it to:\u003c\/p\u003e \u003cul\u003e \u003cli\u003eprotect panelboards and load centers in outdoor equipment or exposed installations\u003c\/li\u003e \u003cli\u003e replace aging or non-standard breakers while keeping your documented part numbers intact\u003c\/li\u003e \u003cli\u003e coordinate with 3-phase distribution schemes that require a four-pole solution\u003c\/li\u003e \u003cli\u003e simplify maintenance planning by stocking a consistent, readily identifiable breaker\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eIf you’re unsure about compatibility with existing gear, AmpState is ready to help. Send a quick message to confirm fit and ensure the EBR1034EH70 is the right match for your panelboard, load center, or distribution panel.\u003c\/p\u003e \u003cp\u003eAvailability is through AmpState, and this unit is designed to integrate smoothly with your established electrical protections. For best results, verify enclosure compatibility with your installation’s environmental requirements and ensure replacement wiring and labeling reflect the 4-pole, 480 V configuration.\u003c\/p\u003e \u003cp\u003ePractical tips for installers and maintainers:\u003c\/p\u003e \u003cul\u003e \u003cli\u003eKeep spare 4P, 480 V breakers on site for rapid retrofit projects to minimize downtime.\u003c\/li\u003e \u003cli\u003eDocument the part number alongside critical system schematics to preserve retrofit traceability.\u003c\/li\u003e \u003cli\u003eConfirm three-phase wiring alignment and neutral connections to ensure proper trip coordination.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"AmpState","offers":[{"title":"Default Title","offer_id":46413314883746,"sku":"EBR1034EH70","price":10.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/ebr1034eh70-100a-4p-480v-circuit-breaker-nema-3r-ampstate-breakers-146.webp?v=1789056458","url":"https:\/\/www.ampstate.com\/products\/ebr1034eh70-100a-4p-480v-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}