Siemens | EH3A150L | Circuit Breaker | 150A | 3-Pole | 480V

Power and protect demanding 480V three‑phase systems with the Siemens EH3A150L circuit breaker. rated at 150A and featuring a 3‑pole design, this device is purpose-built for maintenance, retrofit, and replacement projects where dependable overcurrent protection is essential.

Why this breaker stands out

• Precise protection for 480V three‑phase circuits: Designed to interrupt fault currents and safeguard critical equipment while keeping service disruptions to a minimum.
• Three-pole functionality: Ensures all three phases disconnect together, reducing the risk of partial disconnections and associated electrical issues.
• Clear compatibility reference: The part number EH3A150L is the best reference to verify fit with your panel or retrofit project.
• Versatile application: Ideal for new installations, panel upgrades, or replacing aging breakers in industrial and commercial environments that operate at 480V.
• Streamlined replacement path: Matches the EH3A family design to minimize wiring changes and panel rework when upgrading or retrofitting.

Key specifications at a glance

• Amperage: 150 A
• Poles: 3-Pole
• Voltage: 480 V

Who is this ideal for?

• Facilities with 480V three‑phase distribution seeking reliable, long‑term protection for feeders and equipment
• Maintenance teams performing retrofit work to modernize electrical infrastructure
• Project engineers selecting a precise, compatible replacement part for Siemens panels and systems

Practical guidelines for purchasing and installation

• Before ordering, confirm fit and ratings for your specific panel or equipment—the EH3A150L part number is the primary compatibility reference.
• Plan replacements or retrofits around 480V, 3‑phase distribution to ensure seamless integration with existing wiring and bus configurations.
• Inspect the device for any signs of damage before installation, and handle with care to preserve mounting alignment and terminal integrity.

With the Siemens EH3A150L circuit breaker, you gain a dependable, precisely rated solution for protecting 480V three‑phase circuits, designed to simplify maintenance, retrofit, and replacement workflows while delivering consistent, predictable performance when it matters most.