Siemens EE3M040 40A 3-Pole 240 V Circuit Breaker

Siemens EE3M040 40A 3-Pole 240 V Circuit Breaker is a reliable three-phase protection device designed to safeguard your electrical distribution in commercial and light industrial environments. With the exact fit and performance of Siemens’ EE3M series, this breaker provides consistent protection for 3-phase feeders while keeping your system aligned with the Siemens ecosystem. Part Number EE3M040, this unit delivers a clear, dependable solution for protecting circuits at 240 V and up to 40 A.

Key specifications

• Current rating: 40 A
• Poles: 3
• Voltage rating: 240 V
• Part Number: EE3M040

What it protects and where to use it

• 3-phase feeders in commercial panels, service disconnects, and distribution boards
• Motors, pumps, and HVAC equipment within 3-phase circuits
• Branch circuits that require consistent 3-pole protection at 240 V

Why this Siemens breaker stands out

• Seamless compatibility with Siemens panel systems and accessories, simplifying sourcing and maintenance
• Precisely rated 40 A protection to prevent overloads without nuisance trips on typical 3-phase loads
• Reliable performance tied to Siemens’ engineering standards, helping reduce downtime and maintenance surprises

Installation and practical considerations

• Best matched with compatible Siemens enclosures and mounting configurations for straightforward replacement or upgrade
• Professional installation recommended to ensure proper termination and system safety
• Verify compatibility with local electrical codes and panel ratings before integration

Is this the right choice for you?

If you’re building or upgrading a 3-phase distribution system that runs on 240 V, the Siemens EE3M040 delivers dependable protection with a clear fit into existing Siemens infrastructure. It’s an ideal option for electricians, facilities managers, and panel builders who prioritize reliable protection, easy compatibility, and predictable performance across standard 3-phase applications.