Siemens | EE3B045 | Circuit Breaker | 45A | 3-Pole | 240V

Siemens EE3B045 Circuit Breaker — a precise, OEM solution for 3-phase protection at 240V This Siemens EE3B045 3-pole circuit breaker delivers dependable protection for 3-phase electrical setups and 240V circuits. Designed for maintenance, retrofit, and replacement projects, it gives you a like-for-like replacement that keeps your panel performing exactly as intended. Key specifications - Amperage: 45A - Poles: 3-Pole - Voltage: 240V - Part reference: EE3B045 Why choose this Siemens breaker - OEM compatibility you can trust: The EE3B045 is the best reference for matching fit, mounting footprint, and electrical characteristics with Siemens panels and approved enclosures. - Built for 3-phase protection: A 3-pole design supports multi-wire or three-phase circuits, making it suitable for motors, compressors, HVAC equipment, and other 3-phase loads in commercial or light-industrial settings. - Durable, ready-to-install replacement: When the goal is a straightforward swap, using the exact part number minimizes guesswork and reduces downtime. Ideal use cases - Retrofit projects where older breakers need upgrading to contemporary Siemens specifications without changing panel infrastructure. - Replacement on panels that require a 3-pole, 45A, 240V protection device to safeguard 3-phase equipment. - Maintenance of equipment that relies on reliable, repeatable circuit protection in everyday operations. How to verify compatibility and install with confidence - Always confirm fit and ratings before ordering. The best reference for compatibility is the EE3B045 part number. - Check your panel label or service manual to ensure the bus, mounting style, and trip characteristics align with this unit. - Follow standard safety practices: disconnect power, use lockout/tagout procedures, and consult a licensed electrician if you’re unsure about panel compatibility or installation. Practical considerations - Because this is a genuine Siemens replacement, it’s engineered to align with Siemens’ design and performance expectations, helping maintain consistent protection across your electrical system. - If you’re upgrading or replacing, pair this with other Siemens-certified components to maintain cohesive performance and warranty coverage. In short, the Siemens EE3B045 is a purpose-built, OEM three-pole 45A 240V circuit breaker ideal for reliable maintenance, retrofit, and replacement tasks that demand exact specifications and dependable protection.