Overview
The Gould Shawmut 61038SJ is a 3-pole Class J fuse block rated 100A at 600V AC. This rugged electrical protection component is designed for secure and efficient circuit protection in industrial, commercial, and electrical distribution systems. The fuse block features spring-reinforced tin-plated copper clips and phenolic insulation for verified dielectric strength exceeding 2500V, making it suitable for demanding industrial applications.
Key Features
- 100-Amp, 600-Volt Rating — handles AC and DC current types with 200,000-amp withstand capacity
- 3-Pole Configuration — Class J fuse accommodation for standardized protection
- Spring-Reinforced Clips — high-conductivity tin-plated copper construction ensures reliable contact and longevity
- Phenolic Insulation — dielectric strength exceeds 2500V for safety and durability
- 120 In/Lbs Torque Rating — pressure plate box connectors support conductor sizes from 2/0 CU through #6 stranded or solid copper/aluminum
- Modular Design — adder block configuration allows assembly into multi-pole segmented blocks as needed
Technical Specifications
- Amperage Rating: 100A
- Voltage Rating: 600V AC
- Fuse Class: Class J
- Poles: 3
- Withstand Rating: 200,000 amps
- Insulation Material: Phenolic
- Clip Material: Tin-plated copper (spring-reinforced)
- Connector Type: Box connector with pressure plate
- Torque Rating: 120 in/lbs
- Conductor Compatibility: 2/0 CU through #6 (stranded or solid copper/aluminum)
- UL Listed: Yes
Typical Applications
- Industrial motor control centers and switchboards
- Commercial electrical distribution panels
- Manufacturing equipment circuit protection
- Heavy-duty industrial load centers
- OEM panel integration for Class J fuse protection
Compatibility & Replacements
Compatible With
- Class J fuses (all UL-recognized brands)
- Industrial 600V AC electrical systems
- Modular fuse block expansion systems (1-pole, 2-pole, 3-pole segments)
- Equipment designed for 100A three-phase circuits
Replaces / Drop-In Replacement For
- Mersen Ferraz Shawmut 61038J
- Marathon SP 6J100A3B / R6J100A3B
- Eaton Cooper Bussmann J60100-3CR
- Littelfuse LJ60100-3CR
Works With
- Class J fuse cartridges and stud connections
- Pressure plate and box connector terminal configurations
- UL-listed industrial electrical equipment and control systems





