Mersen TR20R Class RK5 Time-Delay Fuse 20A 250VAC/160VDC Ferrule Terminal

Mersen TR20R Class RK5 Time-Delay Fuse 20A 250VAC/160VDC Ferrule Terminal

Professional Time-Delay Protection for AC/DC Applications

The Mersen TR20R delivers reliable Class RK5 time-delay fuse protection with 20A rating for both 250VAC and 160VDC applications. Featuring ferrule terminals with copper connection material and PolyTube body insulation, this Tri-Onic fuse provides professional-grade overcurrent protection with 200 kA breaking capacity for demanding electrical systems.

Professional Features & Benefits

• 20A Ampere Rating: Provides precise overcurrent protection for medium-load circuits and equipment applications.
• Class RK5 Time-Delay: Offers coordinated protection with temporary overload tolerance, reducing nuisance tripping while maintaining safety.
• Dual Voltage Rating (250VAC/160VDC): Versatile protection for both AC and DC systems with appropriate voltage specifications.
• 200 kA Breaking Capacity: High interrupting capability ensures reliable fault current protection in demanding installations.
• Ferrule Terminal Design: Copper terminals provide secure, low-resistance connections for professional installations.
• PolyTube Body Construction: Durable insulating material ensures reliable performance and safety in various environments.
• RoHS Compliant: Meets environmental standards for professional and commercial applications.

Technical Specifications

• Ac Max I R Breaking Capacity I1: 200 kA
• Ac Or Dc: AC/DC
• Ampere Rating: 20 A
• Body Insulating Material: PolyTube
• Connection Terminal Material: Copper
• Connection Terminal Type: Ferrule
• Frequency Hz : 50/60 Hz
• Fuse Class: Class RK5
• Mounting Method: Clip
• Product Length: 2 in
• Product Weight: 0.037 lb
• Rated Voltage Ac Ul: 250 V
• Rated Voltage Dc Ul: 160 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 Control Panels and Motor Control Centers
• Commercial HVAC and Lighting Systems
• Power Distribution Equipment
• Electronic Equipment Protection
• DC Power Systems and Battery Applications
• Instrumentation and Control Circuits
• Professional Electrical Installations

Why Choose Mersen Quality?

Mersen fuses deliver proven reliability with RoHS compliant construction and professional-grade materials including copper terminals and PolyTube insulation. The compact 2-inch length and lightweight 0.037 lb design ensure versatile installation options while maintaining the high 200 kA breaking capacity required for demanding electrical protection applications.