SJD-2SS-400TF | Circuit Breaker | 400A | 2-Pole | 240V

Meet the SJD-2SS-400TF, a purpose-built industrial circuit breaker designed to protect 240V electrical layouts with a robust 400A rating. This 2-pole unit is ideal for safeguarding high-current feeders and demanding circuits, delivering reliable interruption and clear electrical isolation when protection is needed most.

Key to its value is versatility in real-world maintenance and modernization projects. Use it for maintenance replacements, retrofits, or upgrades where exact specs are required to keep panels and equipment compliant and safe. The SJD-2SS-400TF is specifically identified by its part number, making compatibility checks straightforward when you’re balancing existing equipment with new or replacement components.

Why this model stands out

• 400A rating provides a clear, single-source protection point for high-load circuits common in commercial and light industrial applications.
• 2-pole design interrupts both conductors in a 240V system, ensuring simultaneous protection and safer disconnection for dual-line loads.
• Compatibility-focused—the part number SJD-2SS-400TF is the most reliable reference for matching fit and ratings before ordering.
• Ready for retrofit or replacement scenarios, helping facilities minimize downtime when an existing breaker reaches end-of-life or requires an upgrade to 400A capacity.

Ideal use cases

• Replacing a failed breaker in 240V feeder circuits within commercial panels
• Retrofits where a 2-pole, 400A device is needed to support new equipment or expanded load
• Maintenance swaps to maintain consistent protection without altering panel configurations

Practical guidance for installation and compatibility

• Always confirm fit and ratings before ordering—the SJD-2SS-400TF is keyed by part number for compatibility checks.
• Match the application to a 240V system with two conductors to ensure proper operation and safe disconnects.
• Keep a spare on hand for planned maintenance where downtime matters—having the exact part number speeds up replacements and reduces guesswork.

With the SJD-2SS-400TF, you gain a precise, reliable solution for protecting important 240V circuits while simplifying maintenance and retrofits. If your project requires a 400A, 2-pole breaker with clearly identifiable compatibility references, this model aligns with those needs and supports steady, safe operation across your distribution system.