Siemens | EF3B015L | Circuit Breaker | 15A | 3-Pole | 600V

Introducing the Siemens EF3B015L circuit breaker—a precise, reliable solution for protecting three‑phase electrical systems. With a 15‑amp current rating, 3‑pole construction, and a 600‑volt maximum voltage, this unit is built for dependable performance in maintenance, retrofit, and replacement projects. The EF3B015L part number serves as the clearest reference for compatibility, ensuring you get the exact fit you need for Siemens‑based panels and equipment.

Key benefits that matter in the real world

• Three‑pole protection keeps all three hot conductors in sync, providing safer, coordinated disconnection for motor loads and three‑phase circuits.
• 15 A rating is ideal for distributing moderate loads, lightweight motors, control circuits, and typical HVAC or processing equipment without nuisance tripping.
• 600 V capability expands protection across industrial and commercial distribution for higher‑voltage applications.
• Exact compatibility designed to align with Siemens panels and systems; the EF3B015L designation is the best reference when confirming fit.
• Maintenance and retrofit ready—a straightforward choice when upgrading or replacing aging breakers to maintain system reliability.

Ideal use cases

• Replacing a failed breaker in a 3‑phase Siemens panel or distribution system.
• Upgrading legacy equipment to a compliant 15 A, 3‑pole protection scheme for motor drives and light industrial loads.
• Retrofit projects where precise spec matching (15 A, 3‑pole, 600 V) is required to maintain electrical safety and performance.

How to ensure you get the right fit

• Always verify fit and ratings before ordering—use the EF3B015L part number as your primary compatibility reference.
• Confirm your system operates at or below 600 V and that your load is appropriate for a 15 A branch circuit.
• Match the three poles to your panel’s configuration to ensure a proper, simultaneous trip across all phases.

Specifications at a glance

• Amperage: 15A
• Poles: 3‑Pole
• Voltage: 600V
• Part Number: EF3B015L
• Brand: Siemens

Whether you’re maintaining an existing three‑phase installation or undertaking a strategic retrofit, the Siemens EF3B015L circuit breaker delivers reliable protection with a clear path to compatibility. Remember to confirm fit and ratings before ordering to ensure seamless integration into your electrical system.