Siemens | EE3A040L | Circuit Breaker | 40A | 3-Pole | 240V

Engineered by Siemens for reliability in commercial and industrial panels, the Siemens EE3A040L Circuit Breaker delivers precise protection for 40-amp circuits in 3-pole, 240-volt configurations. Designed for maintenance, retrofit, and replacement projects, it helps you keep electrical systems running safely and efficiently.

Key specifications

• Amperage: 40 A
• Poles: 3-Pole
• Voltage: 240 V
• Part number: EE3A040L

Why this matters

• Exact compatibility: The part number EE3A040L serves as the best reference to ensure the breaker fits the intended Siemens panel and enclosure.
• Streamlined maintenance: Quick, reliable protection for essential circuits during service or upgrades.
• Replacement-ready: A practical, on-hand solution for retiring or worn breakers in compatible systems.
• Safer, code-compliant protection: Designed to interrupt fault currents consistently for 240V three-pole applications.

Ideal use cases

This 3-pole, 40A breaker is well-suited for three-phase feeders in small to mid-size commercial spaces, industrial equipment circuits, and retrofit projects where a Siemens-design protection device is required. Use it when upgrading panels to support additional loads, replacing aging breakers, or sourcing a direct Siemens-compatible replacement part.

Installation notes

Before ordering, confirm fit and ratings for your specific panel. The EE3A040L is the best reference for compatibility, and only use it in circuits and panels rated for 240V, three-pole operation at 40A. Installation should be performed by a licensed electrician following local electrical codes and manufacturer specifications.

Secure this Siemens EE3A040L circuit breaker to maintain reliable protection and compatibility in your Siemens-panel installation.