Mersen TR125R Class RK5 Time-Delay Fuse 125A 250VAC/250VDC Blade Terminal

Mersen TR125R Class RK5 Time-Delay Fuse 125A 250VAC/250VDC Blade Terminal

Professional Time-Delay Protection for AC/DC Applications

The Mersen TR125R delivers reliable Class RK5 time-delay fuse protection with 125A rating and dual 250VAC/250VDC voltage capability. Featuring blade terminal connections with tin-plated copper construction and PolyTube insulating material, this fuse provides professional-grade overcurrent protection with 200 kA breaking capacity for demanding electrical applications.

Professional Features & Benefits

• 125A Ampere Rating: Provides robust overcurrent protection for high-current circuits and equipment applications.
• Class RK5 Time-Delay: Offers selective coordination and withstands temporary overloads while providing fast fault clearing.
• 250VAC/250VDC Dual Rating: Versatile voltage compatibility for both AC and DC electrical systems and applications.
• 200 kA Breaking Capacity: Delivers exceptional fault interruption capability for high-fault current installations.
• Blade Terminal Design: Ensures secure clip mounting with tin-plated copper terminals for reliable electrical connections.
• PolyTube Construction: Provides durable insulating material for consistent performance and long service life.
• RoHS Compliant: Meets environmental compliance standards for professional electrical installations.

Technical Specifications

• Ac Max I R Breaking Capacity I1: 200 kA
• Ac Or Dc: AC/DC
• Ampere Rating: 125 A
• Body Insulating Material: PolyTube
• Connection Terminal Material: Tin-Plated Copper
• Connection Terminal Type: Blade
• Frequency Hz : 50/60 Hz
• Fuse Class: Class RK5
• Mounting Method: Clip
• Product Length: 7.13 in
• Product Weight: 0.752 lb
• Rated Voltage Ac Ul: 250 V
• Rated Voltage Dc Ul: 250 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

• Industrial Motor Control Centers
• Commercial Electrical Panels
• Power Distribution Equipment
• HVAC System Protection
• Manufacturing Facility Circuits
• Critical Infrastructure Systems
• High-Current Load Protection

Why Choose Mersen Quality?

Mersen delivers proven reliability with RoHS compliant construction and professional-grade materials including tin-plated copper terminals and PolyTube insulation. The 7.13-inch compact design and clip mounting system ensure dependable performance in demanding electrical protection applications.