{"product_id":"siemens-e43m020-20a-3p-480v-circuit-breaker","title":"Siemens E43M020 Circuit Breaker, 20A, 3-Pole, 480V","description":"\u003cdiv\u003e\n\u003cp\u003eThe Siemens E43M020 circuit breaker is built for rugged industrial service, delivering dependable protection for 3-phase 480V systems with a precise 20A rating. Whether you’re upgrading aging protection in a control panel, performing routine maintenance, or replacing a failed unit, this Siemens device provides reliable, coordinated interruption when it matters most.\u003c\/p\u003e \u003cp\u003eKey benefits and use scenarios:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eThree-pole design ensures simultaneous protection across all three phases, helping prevent unbalanced loads and safeguarding motor and drive equipment in 480V systems.\u003c\/li\u003e\n\u003cli\u003e20-amp protection precisely sized for feeders and branch circuits in industrial installations, reducing nuisance trips while maintaining solid overcurrent protection.\u003c\/li\u003e\n\u003cli\u003eIndustrial-grade reliability suited for manufacturing facilities, processing lines, and facility infrastructure projects where uptime matters.\u003c\/li\u003e\n\u003cli\u003ePart-number-driven compatibility: verify fit by matching the exact part number E43M020 to your panel or distribution equipment and application requirements.\u003c\/li\u003e\n\u003cli\u003eEasy replacement for legacy installations or panel upgrades that specify Siemens protection devices, supporting streamlined maintenance and downtime reduction.\u003c\/li\u003e\n\u003cli\u003eClear traceability and documentation: using the correct part number simplifies future servicing, compliance checks, and audits.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003ePractical guidance for selection and installation:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eEnsure your system operates at 480V and requires three-phase protection before ordering.\u003c\/li\u003e\n\u003cli\u003eMatch the part number E43M020 to Siemens-compatible panels and protective devices to avoid fitting issues.\u003c\/li\u003e\n\u003cli\u003eIf you need help with compatibility or part-number verification, reach out for assistance in confirming fit and identifying any necessary companion components for your electrical backbone.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eWhy choose this Siemens circuit breaker? It combines Siemens’ trusted engineering with a form factor and rating tailored for demanding industrial environments. A dedicated 3-pole, 480V, 20A protection device means fast, predictable interruption during faults, reducing the risk of collateral damage to motors, drives, and control electronics while supporting safer, more efficient maintenance workflows.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"AmpState","offers":[{"title":"Default Title","offer_id":46416016408738,"sku":"E43M020","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\/siemens-e43m020-20a-3p-480v-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}