Mersen US3J3I UltraSafe Class J Fuse Holder, 3-Pole, 600VAC/600VDC 30A, IP65
The Mersen US3J3I UltraSafe Class J Fuse Holder delivers reliable circuit protection for demanding industrial and commercial applications. This 3-pole unit is rated 600VAC/600VDC at 30A for Class J fuses, with integrated LED indication for visual fuse-status monitoring and an IP65-rated polyamide housing for durability in harsh environments. Backed by a 200 kA short circuit current rating and DIN rail mounting, it combines safety, performance, and easy maintenance in one compact package.
Key Features
- Dual Voltage Rating: 600VAC/600VDC compatibility supports both AC and DC systems for broad application flexibility.
- 30A Class J Fuse Capacity: Handles substantial current loads with precise overcurrent protection using Class J, clip-in fuses.
- LED Indication System: Provides instant visual confirmation of fuse status, reducing troubleshooting time.
- IP65 Environmental Protection: Sealed polyamide construction resists dust ingress and water jets for reliable outdoor and industrial use.
- 200 kA Short Circuit Current Rating: Exceptional fault current handling ensures system protection under extreme conditions.
- DIN Rail Mounting: Standard industrial mounting enables quick installation and easy panel integration.
- Durable Construction: High-performance polyamide insulating material provides excellent electrical isolation and mechanical durability.
- Wiring Range: Accepts #2 to 14 AWG conductors, torqued to 35 lb-in for a secure termination.
Certifications & Compliance
- RoHS Compliant
- IP65 Rated Enclosure
Technical Specifications
- Indication System: Yes
- Indication System Type: LED
- Rohs Compliant: Yes
- Fuse Class: Class J
- Number Of Poles: 3-Pole
- Ampere Rating: 30 A
- Rated Voltage AC/DC: 600 V
- Body Insulating Material: Polyamide
- Installation Mounting: DIN Rail
- Fuse Installation Method: Clip-in
- Short Circuit Current Rating (SCCR): 200 kA
- Wiring Range: #2 to 14 AWG
- Torque Rating: 35 lb-in
- Product Dimensions: 4.49 in L x 3.84 in W x 3.15 in H
- Product Weight: 1.43 lb
Typical Applications
- Industrial Control Panels and Motor Control Centers
- Commercial HVAC and Building Automation Systems
- Manufacturing Equipment and Process Control
- Power Distribution and Electrical Substations
- Renewable Energy and Solar Power Systems
- Marine and Offshore Electrical Installations
Why Mersen?
Mersen UltraSafe fuse holders are engineered for dependable circuit protection, backed by RoHS compliance and a rugged IP65 polyamide housing built for long-term performance. The combination of dual 600VAC/600VDC voltage capability, LED fuse-status indication, and a 200 kA short circuit current rating makes this Class J fuse holder a dependable, code-compliant choice for professional electrical installations.
Manufacturer Resources
Product Specs
- Product Group:
- Wiring Devices
- Installation Mounting:
- DIN Rail
- Indication System Type:
- LED
- Indication System:
- Yes
- Fuse Class:
- Class J
- Fuse Installation Method:
- Clip-in
- Department:
- Electrical
- Product Type:
- Fuse Holder