Siemens HEM3M015L 15A 3-Pole 480 V Circuit Breaker

Meet the Siemens HEM3M015L—a purpose-built 15A, 3-pole circuit breaker designed for reliable protection in 480V three-phase electrical systems. With the Part Number HEM3M015L, this Siemens device delivers precise overcurrent protection for industrial panels and critical electrical runs, helping you minimize downtime and protect valuable equipment.

Key specifications

• Current rating: 15 A
• Poles: 3 (three-phase configuration)
• Voltage rating: 480 V
• Part Number: HEM3M015L

What problems does it solve?

In demanding industrial environments, electrical faults can threaten costly equipment and production time. The HEM3M015L provides dependable overcurrent protection across all three phases, quickly interrupting fault currents to prevent damage, reduce fire risk, and keep essential processes moving. Its 3-pole design ensures balanced protection of each phase, safeguarding motors, feeders, and distribution circuits in modern facilities powered by 480V.

Ideal use cases

• Mid- to large-scale manufacturing lines powered by 480V three-phase systems
• Motor feeders and distribution panels in industrial facilities
• Upgrade or replacement in Siemens-based panel boards where a 3-pole, 480V solution is required
• Controls and switchgear assemblies that need reliable, plug-in protection with streamlined maintenance

Why choose the Siemens HEM3M015L

Choosing Siemens means partnering with a long-standing manufacturer known for consistent performance in demanding environments. The HEM3M015L is purpose-built to align with three-phase 480V applications, offering straightforward integration into compatible Siemens panels and systems. Its 3-pole configuration guarantees synchronized interruption across all phases, helping you maintain system integrity and reduce unplanned outages.

Practical considerations and tips

• Confirm your panel accepts a 3-pole, 480V circuit breaker of the HEM series for a seamless fit and reliable operation.
• Use in applications where balanced protection across all three phases is essential—such as motor drives, conveyors, and heavy equipment feeders.
• Regularly inspect connections and mounting to ensure consistent performance and minimize nuisance trips in high-load environments.

Equip your electrical system with the Siemens HEM3M015L 15A, 3-pole, 480V circuit breaker to deliver targeted protection where it matters most—keeping equipment safe, downtime to a minimum, and operations running smoothly.