Description
The Mersen FB60J30B3 is a 30A 3-pole Generation 2 open-style Class J fuse block featuring tin-plated copper box connectors. Engineered for 600 VAC/VDC applications, it provides exceptional short-circuit current ratings up to 200 kA and accommodates Class J fuses up to 30A.
Designed with a compact footprint, the FB60J30B3 offers direct screw mounting and features dovetail nesting for flexible multi-pole field assembly. Molded from durable glass-filled polycarbonate, it achieves an IP20 finger-safe rating when paired with Mersen’s compatible dead-front safety covers. It measures 3.54″ x 4.15″ x 2.51″ (89.9 x 105.4 x 63.8 mm) and is fully RoHS compliant.
Key Features
- High SCCR Performance: Delivers up to 200 kA short-circuit current rating for robust industrial protection.
- Tin-Plated Copper Box Connectors: Provides secure, low-resistance connections for wire ranges from #2 to #14 AWG.
- Modular Gen2 Design: Features dovetail nesting for easy multi-pole assembly and a compact footprint that saves panel space.
- IP20 Finger-Safe Capable: Achieves touch-safe protection when paired with Mersen dead-front safety covers.
- Rugged Construction: Molded from high-strength glass-filled polycarbonate for superior thermal and mechanical durability.
Specifications
| Technical Specification | Detail |
|---|---|
| Product Model | FB60J30B3 |
| Brand | Mersen (Gen2 Series) |
| Product Type | 3-Pole Class J Fuse Block |
| Voltage Rating | 600 VAC / VDC |
| Ampere Rating | 30 A |
| Number of Poles | 3-Pole |
| Fuse Class | Class J (0–30A) |
| Short Circuit Current Rating (SCCR) | 200 kA |
| Terminal Type & Material | Box Connectors / Tin-Plated Copper |
| Wire Range | #2 to #14 AWG |
| Mounting Type | Direct Screw Mount |
| Body Material | Glass Filled Polycarbonate |
| Dimensions | 89.9 x 105.4 x 63.8 mm (3.54 x 4.15 x 2.51 in) |
| Standards & Certifications | RoHS Compliant, IP20 Finger-Safe (with cover) |
| Primary Applications | Industrial power distribution, control panels, and motor circuit protection |
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