MERSEN Fuse: Class RK5, TRS-R Series, Time-Delay, 4.5 A, 600 V AC, 600 V DC
SKU 3G-OTH-27621
Need installation or engineering help?
Ask a question
Frequently Asked Questions
What is a MERSEN TRS-R Class RK5 time-delay fuse used for?
The MERSEN TRS-R Class RK5 time-delay fuse protects motor circuits and equipment from overloads and short circuits. Its 4.5 A rating and 600 V AC/DC capability suit industrial control panels, HVAC systems, and pump controls where high inrush currents occur.
What are the specifications of the MERSEN TRS4-1/2R fuse?
The MERSEN TRS4-1/2R is a Class RK5, TRS-R series, time-delay, non-indicating cylindrical fuse rated 4.5 A, 600 V AC, and 600 V DC. It provides branch-circuit protection with a compact ferrule design for industrial applications.
Where to buy MERSEN TRS4-1/2R fuses worldwide?
3G Electric supplies MERSEN TRS4-1/2R fuses worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your facility. Contact us for pricing and lead time on this Class RK5 time-delay fuse.
How to select the right MERSEN TRS-R fuse for a motor circuit?
Select a MERSEN TRS-R fuse by matching the voltage (600 V AC/DC), current rating (e.g., 4.5 A), and Class RK5 time-delay characteristic to your motor's full-load amps and starting current. Always consult the manufacturer's time-current curves for coordination.
Used in
Common applications for MERSENMERSEN Products
3G Electric supplies MERSEN time-delay cylindrical fuses. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.















