Siemens | HE2A040 | Circuit Breaker | 40A | 2-Pole | 480V

Siemens HE2A040 circuit breaker delivers dependable overcurrent protection for 40A circuits in 480V systems. This 2-pole unit is built for maintenance, retrofit, and replacement projects where exact specifications matter, offering the reliability you expect from Siemens in demanding industrial environments.

• Amperage: 40A
• Poles: 2-Pole
• Voltage rating: 480V
• Part number: HE2A040

Why this Siemens HE2A040 stands out

Designed for compatibility within Siemens panels and systems that require a precise 40-amp, 2-pole, 480V protection device, the HE2A040 ensures consistent performance when a fault occurs. The two-pole design enables simultaneous disconnection of both active conductors in a 480V circuit, enhancing safety and simplifying maintenance workflows in industrial electrical setups. Using the exact part number HE2A040 as your compatibility reference minimizes the risk of mismatched protection devices during replacements or upgrades.

Ideal use cases

• Retrofit or upgrade of legacy 480V distribution panels in manufacturing lines, processing facilities, and machine rooms.
• Replacement for failed or obsolete breakers in industrial control panels that require a precise 40A, 2-pole protection device.
• Spare part inventory for service fleets supporting Siemens-installed equipment and panels operating at 480V.

Practical guidance for installation and maintenance

• Before ordering, confirm fit and ratings for your specific panel or switchgear. Rely on the HE2A040 part number as the most reliable compatibility reference.
• Ensure the surrounding panel is de-energized and properly isolated before replacement, and follow your facility’s safety procedures during installation.
• For ongoing reliability, pair this breaker with a matching Siemens protection strategy in your 480V distribution to maintain consistent interrupting performance.

Whether you’re performing routine maintenance, undertaking a retrofit project, or stocking a spare for critical equipment protection, the Siemens HE2A040 40A 2-Pole 480V circuit breaker provides a precise, dependable solution designed to integrate seamlessly with existing Siemens equipment and 480V systems. Remember: confirm fit and ratings before ordering—the part number HE2A040 is your best reference for compatibility.