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Mersen 60301J Class J Fuse Base, 600V 30A Tin-Plated Box Connector
The Mersen 60301J Class J Fuse Base is a 600V, 30A fuseholder engineered for AJT, A4J, and HSJ Class J fuses used in industrial and commercial power distribution. This fuse base is available in 1-pole and 3-pole configurations, letting you match single-circuit or three-phase protection needs on the same platform. Its glass-filled polycarbonate (GFPC) insulating body delivers verified dielectric strength in excess of 2500V, while box-style wire connectors accept a wide range of stranded or solid copper or aluminum conductors. Backed by UL Listing and CSA Certification with a 200kA short-circuit current rating, this fuse base is built for demanding, code-compliant electrical installations.
Key Features
- Ampere Rating: 30A max fuse rating sized for Class J fuses including AJT, A4J, and HSJ types.
- Pole Configurations: Available in 1-pole and 3-pole versions to suit single or three-phase circuits.
- Durable Construction: Glass-filled polycarbonate (GFPC) insulating body with dielectric strength exceeding 2500V for reliable isolation.
- Wire Connections: Box-style connectors accommodate stranded or solid copper or aluminum conductors, torqued to 35 lb-in.
- Voltage Rating: Rated 600V AC/DC for demanding industrial and commercial circuits.
- Fuse Installation: Clip-in design with high-conductivity tin-plated copper fuse clips for secure fuse retention.
- Operating Temperature: Rated from -25°C to 80°C for storage and operation.
- Short-Circuit Current Rating: 200kA SCCR supports high fault-current applications.
Certifications & Compliance
- UL Listed, Guide IZLT, File E52283
- Meets UL4248 (formerly UL512) requirements for Class J fuse blocks
- CSA Certified, Class 6225, File 32169
Technical Specifications
- Rated Voltage: 600V AC/DC
- Ampere Rating: 30A
- Body Insulating Material: GFPC
- Wire Connections: Box
- Torque Rating: 35 lb-in
- Short Circuit Current Rating (SCCR): 200kA
- Fuse Installation Method: Clip-in
- Frequency: 50/60 Hz
- Installation Mounting: Direct Screw Mount
- Country of Origin: Mexico
- Number of Poles Available: 1, 3
Typical Applications
- Industrial Power Distribution Panels
- Motor Control Centers
- Class J Fuse Protection Circuits
- Commercial and Industrial Electrical Installations
- Panelboard and Switchboard Wiring
Why Mersen?
Mersen Class J fuse bases combine a GFPC insulating body, high-conductivity tin-plated copper fuse clips, and a 200kA SCCR to deliver reliable, code-compliant fuse protection across both 1-pole and 3-pole configurations. With UL Listing and CSA Certification backing every unit, these fuse bases are built for professional electrical work where dependable short-circuit protection and secure box-style terminations are essential.
Manufacturer Resources
Mersen Product Catalog
Product Specs
- Rated Voltage Dc Ul:
- 600 V
- Torque Rating:
- 35 lb-in
- Ampere Rating:
- 30 A
- Body Insulating Material:
- GFPC
- Max Operating Temp:
- 80 °C
- Max Storage Temp:
- 80 °C
- Wire Connections:
- Box
- Product Line:
- Class J Fuseholders - Class J
- Frequency Hz:
- 50/60 Hz
- Installation Mounting:
- Direct Screw Mount
- Max Fuse Rating:
- 30 A
- Fuse Installation Method:
- Clip-in
- Rated Voltage Ac Ul:
- 600 V
- Country Of Origin:
- MX
- Min Storage Temp:
- -25 °C
- Short Circuit Current Rating Sccr:
- 200 kA
- Country of Origin:
- Mexico
- list_batch:
- MERSEN-20260825
- Product Type:
- Fuse Base
- Department:
- Electrical
- Product Group:
- Wiring Devices
- Product Material:
- GFPC
- Finish:
- Tin-Plated
- Voltage Rating:
- 600V
- Amperage Rating:
- 30A
- Connection Type:
- Box
- Listing:
- UL Listed
- Product Subgroup:
- Class J Fuses