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MERSEN Fuse: Class RK5, TR-R Series, Time-Delay, 3.5 A, 250 V AC, 160 V DC - Time-Delay Cylindrical Fuses
MERSENTime-Delay Cylindrical Fuses

MERSEN Fuse: Class RK5, TR-R Series, Time-Delay, 3.5 A, 250 V AC, 160 V DC

SKU 3G-OTH-27041

Brand
MERSEN
Item
Fuse: Class RK5, TR-R Series, Time-Delay, 3.5 A, 250 V AC, 160 V DC
Category
Time-Delay Cylindrical Fuses
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Technical Specifications

MERSEN
Manufacturer Part Number
TR3-1/2R
Series
TR-R
Type
TR-R Series, Time-Delay, 3.5 A, Non-Indicating
AC
250 V
DC
160 V
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MERSEN Products
3G Electric (S) Pte. Ltd. — Singapore

Frequently Asked Questions

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

The MERSEN TR-R series time-delay fuse (3.5 A, 250 V AC / 160 V DC) protects motor circuits and equipment with high inrush currents. Its non-indicating design suits industrial control panels, HVAC systems, and pump drives where reliable overload protection is needed without visual indication.

What are the specifications of the MERSEN TR3-1/2R fuse?

The MERSEN TR3-1/2R is a Class RK5, TR-R series, time-delay cylindrical fuse rated 3.5 A, 250 V AC and 160 V DC. It is non-indicating and designed for branch-circuit protection. The manufacturer part number is TR3-1/2R, and it is part of the TR-R series.

Where to buy MERSEN TR3-1/2R fuses worldwide?

3G Electric supplies MERSEN TR3-1/2R fuses worldwide. As a global industrial sourcing partner, we handle logistics, customs clearance, and delivery to your facility. Contact us for a quote on this Class RK5, time-delay fuse for your motor or control circuit application.

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

Select a MERSEN TR-R time-delay fuse by matching the voltage (250 V AC or 160 V DC) and current rating (e.g., 3.5 A) to the motor full-load amps. The time-delay characteristic handles startup inrush without nuisance opening. Always verify the interrupting rating meets system fault current.

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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