Westinghouse | RLM3400 | Circuit Breaker | 3-Pole | 600V

Westinghouse RLM3400 3-Pole 600V Circuit Breaker is designed for maintenance, retrofit, and replacement projects where you need a precise, fit-for-purpose solution. Identified by the part number RLM3400, this breaker delivers reliable overcurrent protection for three‑phase systems up to 600 volts.

Key specifications:

• Poles: 3‑Pole
• Voltage rating: 600V
• Part reference: RLM3400 for compatibility checks

Why choose this Westinghouse breaker for your panel?

• Direct reference point: Use the RLM3400 part number as your compatibility anchor to ensure a correct match for retrofit or replacement.
• Simplified maintenance: When a three-pole breaker in your 600V system trips, this unit provides a straightforward swap without reconfiguring the panel.
• Design intent: Built to fit standard 3-pole, 600V applications common in industrial and commercial electrical setups.

Best use cases

• Replacing a failed 3-pole, 600V breaker in existing panels
• Retrofits where original equipment requires the RLM3400 specification
• Maintenance cycles in three-phase power distribution systems

Practical guidance for ordering and installation

• Before ordering, confirm fit and ratings against your panel’s labeling and the packaging you’re replacing. The part number RLM3400 is the most reliable reference for compatibility.
• Plan for careful handling during removal and replacement to maintain circuit integrity and safety.
• Consult your local electrical codes and follow proper lockout/tagout procedures during service work.