Description
The Mersen FBJ100U is a 100A 3-pole universal fusible disconnect switch / fuse block from the FB series, engineered for heavy-duty industrial power control and service entrance applications. Built to meet stringent safety and performance standards, it manually makes and breaks circuits under full load while providing exceptional short-circuit protection when paired with Mersen Class J fuses.
Featuring a robust universal design, the FBJ100U ensures secure circuit isolation and dependable terminal connections for demanding electrical environments. With a 3.00 lbs weight and a compact 3-pole footprint, it integrates seamlessly into industrial control panels and distribution assemblies requiring reliable load-break isolation.
Key Features
- Universal Design: Versatile configuration accommodates standard industrial panel layouts and wiring architectures.
- Reliable Load-Break Performance: Engineered to safely make and break power circuits under full operating load.
- Class J Integration: Optimized to house Mersen Class J fuses for maximum short-circuit current protection.
- Heavy-Duty Construction: Built for rigorous industrial applications, motor control, and service entrance requirements.
Specifications
| Technical Specification | Detail |
|---|---|
| Product Model | FBJ100U |
| Brand | Mersen (FB Series) |
| Product Type | 3-Pole Class J Fusible Disconnect Switch / Fuse Block |
| Ampere Rating | 100 A |
| Number of Poles | 3-Pole |
| Fuse Type / Class | Class J (Universal) |
| Category | Panel Accessories / Fuse Holder |
| Primary Applications | Industrial power distribution, motor control circuits, and service entrance panel isolation |






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