Mersen TR50R Fuse Tri-Onic® Time-Delay 250V 50A Class RK5, 3 Inch Length, Copper Terminal
Mersen TR50R Fuse Tri-Onic® Time-Delay 250V 50A Class RK5, 3 Inch Length, Copper Terminal
- MPN: TR50R
- UPC: 782001747930
- PPN: FER-TR50R
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Description
Tri-Onic TR-R current-limiting time-delay fuses are engineered for overcurrent protection of motors, transformers, service entrance equipment, feeders and branch-circuits. The time-delay characteristics of the TR-R safely handle harmless starting currents and inrush currents associated with today's motors and transformers.
Features
- Engineered with Mersen’s Tri-Onic® time-delay technology, this fuse is specifically designed to carry 500% of its rated current for at least 10 seconds. This prevents frustrating nuisance tripping caused by high inrush currents during heavy-duty motor or transformer startups, keeping your industrial machinery operational without compromising on sensitive overload protection.
- With a massive 250V AC interrupting rating of 200,000 Amps, this current-limiting fuse rapidly clears high-magnitude short circuits before they can reach downstream equipment. This high-tier Short Circuit Current Rating (SCCR) ensures your electrical distribution system remains safe and compliant, significantly reducing the risk of catastrophic arc flash events or permanent damage to your switchgear.
- Featuring a standardized Class RK5 rejection-style blade, this 50-Amp cartridge fuse is built to fit into any modern 250V rejection-style fuse holder. The physical design prevents the accidental installation of lower-rated Class H or K fuses, ensuring your commercial power system maintains its intended current-limiting safety margins and stays strictly code-compliant during routine maintenance.
- As a specialized current-limiting component, the TR50R clears faults so quickly that it limits the total thermal energy (I^2t) let-through to your circuit. This proactive protection shields cables, controllers, and expensive industrial drives from the destructive forces of a short circuit, extending the lifespan of your infrastructure and lowering long-term repair costs.
Specifications
- Breaking Capacity
- 200 kA AC / 20 kA DC
- Amperage
- 50 A
- Speed/Characteristic
- Time Delay
- Connection Type
- Ferrule
- Body Material
- PolyTube
- Mounting
- Clip
- RoHS Compliance
- Yes
Voltage250 V AC/DC
Fuse ClassClass RK5
Length3 in
Terminal MaterialCopper
Weight0.119 lb
Frequency50/60 Hz
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