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MERSEN Fuse: Class RK5, TR-R Series, Time-Delay, 75 A, 250 V AC, 250 V DC - Time-Delay Blade Fuses
MERSENTime-Delay Blade Fuses

MERSEN Fuse: Class RK5, TR-R Series, Time-Delay, 75 A, 250 V AC, 250 V DC

The MERSEN TR-R Series TR75R is a Class RK5 time-delay blade fuse rated for 75 A at 250 V AC and 250 V DC. This non-indicating fuse is designed for overcurrent protection in industrial electrical systems, supporting…

SKU 3G-OTH-27642

Brand
MERSEN
Item
Fuse: Class RK5, TR-R Series, Time-Delay, 75 A, 250 V AC, 250 V DC
Category
Time-Delay Blade Fuses
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Technical Specifications

MERSEN
Manufacturer Part Number
TR75R
Series
TR-R
Type
TR-R Series, Time-Delay, 75 A, Non-Indicating
AC
250 V
DC
250 V
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MERSEN Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The MERSEN TR-R Series TR75R is a Class RK5 time-delay blade fuse rated for 75 A at 250 V AC and 250 V DC. This non-indicating fuse is designed for overcurrent protection in industrial electrical systems, supporting reliable operation across 14 departments including electrical and instrumentation. As an authorised distributor for MERSEN, 3G Electric provides specialist sourcing and support for this fuse and a broad range of industrial components.

Frequently Asked Questions

What is the MERSEN TR75R fuse used for?

The MERSEN TR75R is a Class RK5 time-delay blade fuse rated 75 A at 250 V AC/DC. It protects motors, transformers, and lighting circuits from overloads and short circuits, allowing temporary inrush currents without nuisance opening.

What are the specifications of the MERSEN TR75R fuse?

The MERSEN TR75R is part of the TR-R series, a Class RK5 time-delay fuse. It is rated 75 A, 250 V AC and 250 V DC, non-indicating. The manufacturer part number is TR75R, and it is a blade-type fuse for industrial overcurrent protection.

Where to buy MERSEN TR75R fuses worldwide?

3G Electric supplies MERSEN TR75R fuses worldwide. As a global industrial distributor since 1990, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time on this TR-R series fuse.

How to select the correct MERSEN TR75R fuse for an application?

Select the MERSEN TR75R based on system voltage (250 V AC/DC) and continuous load current (75 A). Ensure the Class RK5 time-delay characteristic matches motor or transformer starting currents. Consult the TR-R series datasheet for coordination with upstream protection devices.

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 blade fuses. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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