Siemens | EH3B050L | Circuit Breaker | 50A | 3-Pole | 480V | Bolt-On

Siemens EH3B050L is a robust, field-ready circuit breaker engineered for demanding 3‑phase electrical systems. With a 50 amp rating, three poles, and a 480V rating, this bolt-on unit delivers reliable overcurrent protection for motor feeders, control circuits, and industrial power workflows. Designed to be a precise replacement or retrofit, it ensures your equipment resumes operation quickly with minimal downtime.

Key specifications

• Amperage: 50 A
• Poles: 3-Pole
• Voltage: 480 V
• Mounting: Bolt-On
• Part number: EH3B050L

Why the bolt-on design matters

The bolt-on mounting provides a secure, vibration-resistant connection ideal for demanding environments. Unlike plug-in styles, bolt-on breakers stay firmly seated in panels and switchgear subjected to routine vibrations or movement, reducing nuisance trips and misalignment risk.

What makes this model unique

This EH3B050L unit is chosen for applications requiring exact part-number compatibility in 3‑pole, 480V circuits. Using the correct part number ensures the protective characteristics and mounting footprint align with your existing gear and documentation, facilitating a smooth retrofit or replacement.

Ideal use cases

• Maintenance replacements in legacy Siemens panels that require an EH3B050L or equivalent bolt-on breaker
• Retrofits where 50A protection and 3‑pole 480V capability are needed for motor control circuits
• Industrial equipment upgrades where downtime must be minimized and compatibility guaranteed

Compatibility reminders

Always confirm fit and ratings before ordering. The part number EH3B050L is the best reference for compatibility with your panel or switchgear. Compare the mounting style, pole count, and voltage rating to your existing protective device to ensure a seamless match.