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MERSEN Fuse: Class RK5, TR-R Series, Time-Delay, 2.5 A, 250 V AC, 250 V DC - Time-Delay Cylindrical Fuses
MERSENTime-Delay Cylindrical Fuses

MERSEN Fuse: Class RK5, TR-R Series, Time-Delay, 2.5 A, 250 V AC, 250 V DC

The MERSEN TR-R Series Class RK5 Time-Delay Cylindrical Fuse (MPN TR2-1/2R) is a 2.5 A, non-indicating fuse rated for 250 V AC and 250 V DC. As a time-delay fuse, it accommodates temporary inrush currents while…

SKU 3G-OTH-25793

Also listed as: TR212R · TR2 1 2R · TR2-1-2R

Brand
MERSEN
Item
Fuse: Class RK5, TR-R Series, Time-Delay, 2.5 A, 250 V AC, 250 V DC
Category
Time-Delay Cylindrical Fuses
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Local availability & support

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Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
Payment
Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

MERSEN
Manufacturer Part Number
TR2-1/2R
Series
TR-R
Type
TR-R Series, Time-Delay, 2.5 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 TR2-1/2R) is a 2.5 A, non-indicating fuse rated for 250 V AC and 250 V DC. As a time-delay fuse, it accommodates temporary inrush currents while providing overcurrent protection across 14 industrial departments, with specialist depth in electrical components.

Frequently Asked Questions

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

The MERSEN TR-R Class RK5 time-delay fuse protects motor circuits and equipment with high inrush currents. It handles temporary overloads without nuisance opening, making it suitable for industrial control panels, pumps, and HVAC systems where reliable overcurrent protection is required.

What are the specifications of the MERSEN TR2-1/2R fuse?

The MERSEN TR2-1/2R is a Class RK5, TR-R series, time-delay fuse rated 2.5 A at 250 V AC and 250 V DC. It is non-indicating with a cylindrical body. This fuse is designed for branch-circuit protection in industrial equipment and control circuits.

Where to buy MERSEN TR2-1/2R fuses worldwide?

3G Electric supplies the MERSEN TR2-1/2R fuse to customers worldwide. As a global industrial sourcing partner, we handle logistics, customs clearance, and delivery to your site. Contact us for a quote and lead time on this Class RK5 time-delay fuse.

How to select the right MERSEN TR-R fuse for a motor circuit?

Select a MERSEN TR-R fuse by matching the voltage (250 V AC/DC) and current rating (2.5 A) to your motor's full-load amps. The time-delay characteristic allows temporary inrush without blowing. Always verify the interrupting rating and consult the manufacturer's data sheet for coordination.

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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Compatible alternatives & equivalents

Cross-referenced by specification & description
MERSEN Fuse: Class RK5, TR-R Series, Time-Delay, 2 A, 250 V AC, 250 V DC, Non-Indicating (MPN TR2R)
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MERSEN Fuse: Class RK5, TR-R Series, Time-Delay, 2 A, 250 V AC, 250 V DC, Non-Indicating (MPN TR2R)
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MERSEN Fuse: Class RK5, TR-R Series, Time-Delay, 1.8 A, 250 V AC, 250 V DC, Non-Indicating (MPN TR1-8/10R)
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MERSEN Fuse: Class RK5, TR-R Series, Time-Delay, 1.8 A, 250 V AC, 250 V DC, Non-Indicating (MPN TR1-8/10R)
MERSEN Fuse: Class RK5, TR-R Series, Time-Delay, 3.2 A, 250 V AC, 160 V DC, Non-Indicating (MPN TR3-2/10R)
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MERSEN Fuse: Class RK5, TR-R Series, Time-Delay, 3.2 A, 250 V AC, 160 V DC, Non-Indicating (MPN TR3-2/10R)

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