{"product_id":"siemens-heb1b030-circuit-breaker","title":"Siemens | HEB1B030 | Circuit Breaker | 30A | 1-Pole | 277V | Bolt-On","description":"\u003cdiv\u003e\n\u003cp\u003eMeet the Siemens HEB1B030—a precise, reliable 30-amp, 1-pole circuit breaker designed for 277-volt distribution and bolt-on mounting. Built for maintenance, retrofit, and replacement projects, this device ensures your panel protection aligns with exact specifications. Rely on the part number HEB1B030 as your best reference for compatibility, helping you avoid mismatches in demanding electrical environments.\u003c\/p\u003e \u003ch3\u003eKey specifications\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eAmperage: 30 A\u003c\/li\u003e \u003cli\u003ePoles: 1-Pole\u003c\/li\u003e \u003cli\u003eVoltage: 277 V\u003c\/li\u003e \u003cli\u003eMounting: Bolt-On\u003c\/li\u003e \u003cli\u003eReference: Part number HEB1B030\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhy this breaker stands out\u003c\/h3\u003e\n\u003cp\u003eDesigned for bolt-on installations, the Siemens HEB1B030 delivers secure, durable mounting that resists vibration and loosening in busy electrical panels. Its 277V rating targets commercial and industrial circuits—think lighting, control, and other 277V distribution paths—providing targeted protection where it matters most. As a single-pole device, it protects individual single-phase circuits, offering straightforward replacement when your original equipment reaches the end of its service life.\u003c\/p\u003e \u003ch3\u003eIdeal use cases\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eReplacing a failed 30A 1-pole breaker in a 277V panel to restore circuit protection quickly.\u003c\/li\u003e \u003cli\u003eRetrofit projects where 277V distribution requires consistent, code-compliant overcurrent protection.\u003c\/li\u003e \u003cli\u003eMaintenance scenarios in commercial facilities, maintenance closets, or industrial spaces with 277V lighting or control circuits.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eInstallation \u0026amp; compatibility tips\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eAlways confirm fit and ratings before ordering—the HEB1B030 reference is your best compatibility check.\u003c\/li\u003e \u003cli\u003eEnsure your panel accepts bolt-on breakers of this type and that the circuit is fed by a 277V supply.\u003c\/li\u003e \u003cli\u003eFollow your panel manufacturer’s torque and installation guidelines to secure the breaker properly and maintain reliable protection.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eWhen you need dependable, site-ready protection for 277V single-pole circuits, the Siemens HEB1B030 delivers targeted performance with easy sourcing through standard replacement channels. It’s the practical choice for maintaining safe, uninterrupted power in commercial and industrial environments, backed by Siemens’ long-standing reputation for reliability and compatibility.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":46427176468642,"sku":"HEB1B030","price":510.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/siemens-heb1b030-circuit-breaker-30a-1-pole-277v-bolt-735.webp?v=1789678183","url":"https:\/\/www.ampstate.com\/products\/siemens-heb1b030-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}