Siemens | EH3S150 | Circuit Breaker | 150A | 3-Pole | 480V

Siemens EH3S150 circuit breaker delivers dependable three-phase protection for demanding electrical installations. With a 150A rating, 3-Pole construction, and 480V operating capacity, it’s designed for maintenance, retrofit, and replacement projects where exact specifications matter.

• Amperage: 150A
• Poles: 3-Pole
• Voltage: 480V
• Part number: EH3S150
• Compatibility note: Confirm fit and ratings before ordering; the part number is the best reference for compatibility.

Why this EH3S150 stands out

• Precise compatibility with Siemens panels engineered to accept the EH3S family, ensuring proper fit, mounting, and electrical characteristics.
• Straightforward maintenance and replacement: a direct, drop-in solution for 150A, 480V three-phase protection.
• Reliable protection for industrial loads such as motors, conveyors, and distribution circuits, helping minimize downtime and equipment damage.
• Well-suited for retrofit projects aiming to modernize protection while preserving existing panel architecture.

Ideal use scenarios

• Upgrading or repairing large three-phase feeders in manufacturing facilities operated at 480V.
• Retrofits in existing Siemens-compatible electrical panels that require a 150A, 3-pole device.
• Maintenance replacements for aging protection hardware in industrial plants.

Installation and compatibility tips

Before ordering, double-check the electrical ratings on your panel labeling and confirm that your equipment expects an EH3S-series device. Keep the part number EH3S150 on file to ensure exact compatibility during future replacements. Follow standard electrical safety practices and consult your panel documentation for mounting guidance.

Choosing the EH3S150 means aligning with Siemens’ design intent: robust three-phase protection, reliable performance, and a streamlined path to replacement in critical 150A, 480V circuits.