{"product_id":"siemens-b245r00s01-circuit-breaker","title":"Siemens | B245R00S01 | Circuit Breaker | 45A | 2-Pole | 240V","description":"\u003cdiv\u003eSiemens B245R00S01 stands ready to protect your 240V circuits with precise, dependable performance. This 2-pole, 45A circuit breaker is engineered for maintenance, retrofit, and replacement projects where exact part compatibility matters, helping you keep panels energized and safe without guesswork. Key specifications at a glance\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAmperage:\u003c\/strong\u003e 45A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePoles:\u003c\/strong\u003e 2-Pole\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVoltage:\u003c\/strong\u003e 240V\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e B245R00S01\u003c\/li\u003e\n\u003c\/ul\u003e Why this Siemens breaker is the smart choice\n- Exact fit, exact reference: When your panel calls for B245R00S01, this Siemens unit is designed to match the electrical characteristics and footprint required for secure, compliant operation.\n- Balanced two-pole protection: The 2-pole design ensures both hot legs in a 240V circuit are interrupted together, reducing the risk of misbalanced faults and improving overall circuit protection in residential and light commercial panels.\n- Reliable for retrofit and replacements: If you’re upgrading aging hardware or restoring a panel to its intended protection profile, this part provides a trustworthy, long-service-life option without necessitating a panel rework. Who this is ideal for\n- Electricians and technicians performing panel maintenance, retrofits, or part replacements in homes and small commercial settings.\n- Homeowners working on 240V circuits who need a precise Siemens part that aligns with existing panel listings and warranty requirements.\n- Projects where exact part compatibility is crucial to preserve code compliance and system integrity. What problems it solves\n- Eliminates uncertainty in part compatibility during replacements, reducing installation delays.\n- Restores proper protection for 240V circuits that rely on a precise 2-pole 45A rating, ensuring simultaneous shutoff of both conductors.\n- Supports upgrades or repairs that require a Siemens-branded solution to maintain panel labeling, warranty considerations, and performance expectations. How it compares to alternatives (without naming competitors)\n- Precision fit: Unlike generic substitutes, this unit is designed to align with Siemens specifications and field references, helping you avoid mismatches that compromise panel listings.\n- Consistent performance envelope: With a defined 45A, 2-pole, 240V specification, you know exactly what protection level you’re installing, which simplifies project planning and reduces rework.\n- Reliability built in: Siemens’ design ethos emphasizes durable construction and predictable operation, offering peace of mind for critical residential and light commercial circuits. Practical use and installation notes\n- Before ordering, confirm fit and ratings: The part number B245R00S01 is the best reference for compatibility with your panel system. If the reference aligns, you’re selecting a dependable, field-proven component.\n- Use in 240V circuits that require dual-leg interruption: A 2-pole breaker protects both hot conductors, which is essential for properly isolating load circuits and enabling safe maintenance.\n- Pair with standard panel procedures: Shunt off the main power, verify there’s no residual voltage, and follow the panel manufacturer’s installation guidelines when seating the breaker.\n- Warranty and documentation: When a Siemens part matches your catalog number, you’re more likely to preserve panel labeling, warranty eligibility, and traceability for future service. Maintenance and care tips\n- Inspect for wear during routine panel checks; replace any unit showing signs of physical damage, overheating, or nuisance tripping.\n- Keep track of part numbers during inventoryant to ensure future replacements remain a clean match for your panel’s protection scheme.\n- Store surplus parts in a controlled environment to prevent corrosion or contamination that could affect performance. Notes\n- \u003cstrong\u003eImportant:\u003c\/strong\u003e Confirm fit and ratings before ordering. The \u003cstrong\u003epart number B245R00S01\u003c\/strong\u003e is the best reference for compatibility. This Siemens 2-Pole 45A 240V circuit breaker is a focused, high-confidence choice for professional installers and informed homeowners who demand precise compatibility, reliable protection, and straightforward retrofits. If your project calls for a direct match to B245R00S01, you’re selecting a component built to integrate smoothly with your existing Siemens panel design and protection strategy.\u003c\/div\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":46427289649314,"sku":"B245R00S01","price":328.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/master_generic_ad06fdd7-931c-4a09-bfbe-d05329579cd6.png?v=1765492978","url":"https:\/\/www.ampstate.com\/products\/siemens-b245r00s01-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}