Siemens HE3-A005 Circuit Breaker, 5A, 3-Pole, 480V

Introducing the Siemens HE3-A005 Circuit Breaker — a robust, industrial-grade protection device engineered for reliability in demanding 3-phase, 480V environments. This 5A, 3-pole breaker fits service, maintenance, and replacement projects where precise protection and straightforward compatibility checks matter most.

Designed to safeguard three-phase systems at up to 480 volts, the HE3-A005 delivers dependable interruption and protection across all three conductors. Its 5-ampere rating provides targeted protection for circuits with lighter loads or delicate equipment within a larger 480V distribution network.

Key advantages:

• Three-pole design for balanced protection: Simultaneous switching and protection of all three phases in a 480V system, helping prevent phase imbalances and equipment damage.
• Precise amperage rating: A 5 A rating tailored for specific loads, offering reliable protection without nuisance tripping in properly designed circuits.
• Industrial-grade reliability: Siemens build quality engineered to endure the rigors of ongoing maintenance, service, and replacement workflows.
• Simple compatibility verification: Use the part number HE3-A005 to confirm fit for your application — and if you’re unsure, message us and we’ll help verify compatibility.

Who should consider the HE3-A005?

• Electrical maintenance teams upgrading or replacing protective devices in 480V, three-phase panels.
• OEMs and panel builders integrating reliable Siemens components into new equipment.
• Facilities managers seeking a dependable spare for critical service interruptions in industrial facilities.

Practical use cases include protecting control circuits, feeders, and motors connected to 480V three-phase distribution. When you need consistent, predictable protection across all three legs, the HE3-A005 delivers a straightforward, install-ready solution with clear compatibility requirements.

Notes: Verify fit by part number and application requirements. If you need help matching a part number or confirming compatibility, send us a message—our team will assist in finding the right match for your system.