Mersen Class J Time-Delay Fuse 45A 600VAC/400VDC with SmartSpot Indication System

Mersen Class J Time-Delay Fuse 45A 600VAC/400VDC with SmartSpot Indication System

Professional Circuit Protection with Visual Indication Technology

The Mersen Class J Time-Delay Fuse delivers reliable circuit protection with 45A rating for both AC and DC applications. Featuring 600VAC/400VDC voltage capability and SmartSpot indication system, this professional-grade fuse provides visual status monitoring with ferrule terminal connections and GMG insulating material construction for dependable performance in demanding electrical environments.

Professional Features & Benefits

• 45A Current Rating: Provides precise overcurrent protection for medium-duty electrical circuits and equipment applications.
• Class J Design: Delivers current-limiting performance with rejection feature to prevent installation of non-current-limiting fuses in the same holder.
• Time-Delay Characteristic: Allows temporary overloads while providing fast clearing on short circuits, ideal for motor and transformer applications.
• SmartSpot Indication System: Visual indication technology shows fuse status, enabling quick identification of blown fuses for faster troubleshooting and maintenance.
• Dual Voltage Rating: 600VAC/400VDC capability provides versatility for both alternating and direct current applications in a single fuse design.
• 200 kA Breaking Capacity: High interrupting rating ensures safe fault current interruption in high-energy electrical systems.
• Ferrule Terminal Design: Tin-plated copper terminals with clip mounting provide secure connections and easy installation in compatible fuse holders.

Technical Specifications

• Ac Max I R Breaking Capacity I1: 200 kA
• Ac Or Dc: AC/DC
• Ampere Rating: 45 A
• Body Insulating Material: GMG
• Connection Terminal Material: Tin-Plated Copper
• Connection Terminal Type: Ferrule
• Frequency Hz : 50/60 Hz
• Fuse Class: Class J
• Indication System: Yes
• Indication System Type: SmartSpot�
• Mounting Method: Clip
• Product Length: 2.38 in
• Product Weight: 0.167 lb
• Rated Voltage Ac Ul: 600 V
• Rated Voltage Dc Ul: 400 V
• Rohs Compliant: Yes
• Speed Characteristic: Time Delay

Installation & Operation

1. Mount the unit in a suitable location with appropriate clearance and access for connections and service.
2. Connect utility and load conductors following applicable guidelines and the manufacturer's instructions.
3. Wire generator or power input according to the provided voltage/phase specifications and compatible capacity.
4. Configure any available load management or control features as supported by the provided specifications.
5. Test automatic transfer or operational functionality and verify proper performance before placing into service.
6. Complete final inspection and follow ongoing maintenance practices appropriate to the product category.

Professional Applications

• Motor Control Centers and Starter Applications
• Transformer Primary Protection
• Industrial Control Panels
• Commercial HVAC Systems
• Manufacturing Equipment Protection
• Power Distribution Panels
• Electrical Maintenance and Repair

Why Choose Mersen Quality?

Mersen fuses deliver proven reliability with RoHS compliant construction and professional-grade materials including GMG insulating material and tin-plated copper terminals. The SmartSpot indication system and Class J current-limiting design provide enhanced safety and performance for critical electrical protection applications.