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MERSEN Fuse: Class RK5, TR-R Series, Time-Delay, 1.25 A, 250 V AC, 250 V DC - Time-Delay Cylindrical Fuses
MERSENTime-Delay Cylindrical Fuses

MERSEN Fuse: Class RK5, TR-R Series, Time-Delay, 1.25 A, 250 V AC, 250 V DC

The MERSEN TR-R Series Class RK5 Time-Delay Cylindrical Fuse (MPN TR1-1/4R) is a 1.25 A, 250 V AC/DC, non-indicating fuse. 3G Electric interprets demand and delivers this fuse across 14 industrial departments, with…

SKU 3G-OTH-26921

Also listed as: TR114R · TR1 1 4R · TR1-1-4R

Brand
MERSEN
Item
Fuse: Class RK5, TR-R Series, Time-Delay, 1.25 A, 250 V AC, 250 V DC
Category
Time-Delay Cylindrical Fuses
Available to Order
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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

Technical Specifications

MERSEN
Manufacturer Part Number
TR1-1/4R
Series
TR-R
Type
TR-R Series, Time-Delay, 1.25 A, Non-Indicating
AC
250 V
DC
250 V

Technical Documents

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MERSEN Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The MERSEN TR-R Series Class RK5 Time-Delay Cylindrical Fuse (MPN TR1-1/4R) is a 1.25 A, 250 V AC/DC, non-indicating fuse. 3G Electric interprets demand and delivers this fuse across 14 industrial departments, with specialist depth in electrical components as an authorised distributor.

Frequently Asked Questions

What is the MERSEN TR-R series time-delay fuse used for?

The MERSEN TR-R series time-delay fuse protects industrial circuits against overloads and short circuits. Its 1.25 A rating and 250 V AC/DC capacity suit motor starters, transformers, and control panels where temporary inrush currents occur.

What are the specifications of the MERSEN TR1-1/4R fuse?

The MERSEN TR1-1/4R is a Class RK5, TR-R series, time-delay, non-indicating cylindrical fuse rated 1.25 A at 250 V AC and 250 V DC. It provides reliable overcurrent protection for branch circuits and equipment.

Where to buy MERSEN TR1-1/4R fuses worldwide?

3G Electric supplies MERSEN TR1-1/4R fuses worldwide. As a global industrial distributor, we handle full logistics, customs clearance, and delivery to your site. Contact us for availability and lead time.

How to select the correct MERSEN TR-R fuse for an application?

Select the MERSEN TR-R fuse by matching voltage (250 V AC/DC), current rating (1.25 A), and time-delay characteristic to your circuit's inrush requirements. Always verify the Class RK5 rejection feature prevents substitution with lower-interrupting fuses.

Used in

Common applications for MERSEN
Power electronics protection — MERSEN A70Q series semiconductor fuses in variable frequency drives for motor control.
Surge protection for industrial panels — MERSEN STP480D07 SPDs in three-phase 480V AC distribution boards.
Control circuit overcurrent protection — MERSEN ATM series midget fuses in PLC and instrumentation cabinets.
Power distribution in manufacturing — MERSEN FSPDB4A finger-safe blocks in motor control centers for wire management.
DC bus protection in renewable energy — MERSEN A30QS series fuses in solar inverter DC inputs.
High-voltage semiconductor protection — MERSEN A70Q series fuses in welding equipment power supplies.

MERSEN 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.

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Cross-referenced by specification & description
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