NJL-S2125 | Circuit Breaker | 125A | 3-Pole | 480V

NJL-S2125 is a rugged industrial circuit breaker designed to protect three‑phase, 480V electrical distribution. With a 125A rating and a 3‑pole configuration, this unit is built for retrofit, maintenance, and replacement projects where exact specifications must be matched.

Key specifications

• Amperage: 125A
• Poles: 3‑Pole (three‑phase)
• Voltage: 480V
• Application: maintenance, retrofit, and replacement in 3‑phase 480V systems
• Compatibility note: Confirm fit and ratings before ordering; the part number NJL-S2125 is the best reference for compatibility

Why this is the right choice for your project

When your panel operates on a 480V three‑phase network, precise breaker matching matters. The NJL-S2125 provides just the right balance of current protection and phase coverage to safeguard feeders and downstream equipment, while ensuring safe, simultaneous disconnection of all phases. Its 125A rating is well suited for protecting moderate‑to‑heavy load centers and distribution circuits without nuisance tripping.

Ideal for:

• Facilities upgrading aging switchgear to preserve system reliability
• Panel builders and electricians performing retrofits in existing 480V installations
• Replacement of worn or damaged breakers where the exact NJL-S2125 spec is required

Practical guidance for use

• Always verify that the breaker's amperage, pole configuration, and voltage ratings align with the panel’s specifications and upstream protection coordination.
• Use the NJL-S2125 part number as the primary reference to ensure compatibility with your existing BESS or OEM panels and to streamline sourcing.
• Follow proper safety procedures during installation or replacement to maintain electrical integrity and personnel safety.