Mersen TR250R Class RK5 Time-Delay Fuse 250A 250VAC/250VDC Blade Terminal

Mersen TR250R Class RK5 Time-Delay Fuse 250A 250VAC/250VDC Blade Terminal

Professional Time-Delay Protection for High-Current Applications

The Mersen TR250R delivers reliable overcurrent protection with Class RK5 time-delay characteristics, rated for 250A at 250VAC/250VDC. Featuring blade terminal connections with tin-plated copper construction and PolyTube insulating material, this fuse provides professional-grade protection with 200 kA breaking capacity for demanding electrical applications.

Professional Features & Benefits

• 250A Current Rating: Handles high-current loads with reliable overcurrent protection for demanding applications
• Class RK5 Time-Delay: Provides selective coordination and withstands temporary overloads while clearing sustained faults
• Dual Voltage Rating: 250VAC/250VDC capability offers versatility for both AC and DC circuit protection
• 200 kA Breaking Capacity: High interrupting rating ensures safe fault current interruption in robust electrical systems
• Blade Terminal Design: Tin-plated copper terminals provide secure connections and resist corrosion
• PolyTube Construction: Durable insulating material ensures reliable performance and electrical isolation
• RoHS Compliant: Meets environmental standards for professional electrical installations

Technical Specifications

• Ac Max I R Breaking Capacity I1: 200 kA
• Ac Or Dc: AC/DC
• Ampere Rating: 250 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: 8.63 in
• Product Weight: 1.64 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 Power Distribution
• Heavy Equipment Protection
• Manufacturing Facility Electrical Systems
• High-Current DC Applications
• Professional Electrical Panels
• Critical Infrastructure Protection

Why Choose Mersen Quality?

Mersen fuses deliver proven reliability with RoHS compliant construction and professional-grade materials. The TR250R combines time-delay characteristics with high breaking capacity, ensuring dependable protection in demanding electrical environments where performance and safety are paramount.