BUSSMANN Fuse: Class RK5, FRN-R Series, Time-Delay, 4.5 A, 250 V AC, 125 V DC
The BUSSMANN FRN-R Series Class RK5 Time-Delay Cylindrical Fuse (MPN FRN-R-4-1/2) is a 4.5 A, non-indicating fuse rated for 250 V AC and 125 V DC. 3G Electric interprets customer demand and delivers this genuine…
SKU 3G-OTH-28736
Also listed as: FRNR412 · FRN R 4 1 2 · FRN-R-4-1-2
Local availability & support — Singapore
- Local office
- 20 Woodlands Link #09-05, Singapore 738733
- Phone
- +65 8878 8355
- Delivery
- Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
- Payment
- Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
- Ships to
- Singapore
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Product Description
The BUSSMANN FRN-R Series Class RK5 Time-Delay Cylindrical Fuse (MPN FRN-R-4-1/2) is a 4.5 A, non-indicating fuse rated for 250 V AC and 125 V DC. 3G Electric interprets customer demand and delivers this genuine industrial fuse across 14 departments — with specialist depth in electrical components as an authorised distributor.
Frequently Asked Questions
What is the BUSSMANN FRN-R-4-1/2 fuse used for?
The BUSSMANN FRN-R-4-1/2 is a Class RK5 time-delay cylindrical fuse rated 4.5 A, 250 V AC / 125 V DC. It protects motor circuits, transformers, and lighting panels from overloads and short circuits. Its time-delay characteristic allows it to withstand harmless inrush currents without nuisance opening.
What are the specifications of the BUSSMANN FRN-R-4-1/2 fuse?
The BUSSMANN FRN-R-4-1/2 is a Class RK5, time-delay, non-indicating fuse rated 4.5 A, 250 V AC and 125 V DC. It belongs to the FRN-R Series and has the manufacturer part number FRN-R-4-1/2. It is designed for branch-circuit protection in industrial control panels and motor starters.
Where to buy BUSSMANN FRN-R-4-1/2 fuses worldwide?
You can source the BUSSMANN FRN-R-4-1/2 fuse through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time; we supply genuine BUSSMANN components for industrial maintenance and OEM applications.
How to select the correct BUSSMANN FRN-R fuse for a motor circuit?
To select the correct BUSSMANN FRN-R fuse, match the voltage rating (250 V AC or 125 V DC) and ensure the amp rating (4.5 A) exceeds the motor full-load current. The time-delay feature handles startup inrush. Always consult the NEC or local code for branch-circuit protection sizing. 3G Electric can assist with cross-referencing.
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Common applications for BUSSMANNBUSSMANN Products
3G Electric supplies BUSSMANN time-delay cylindrical fuses. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.
