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MERSEN Fuse: Class RK5, TRS-R Series, Time-Delay, 45 A, 600 V AC, 300 V DC - Time-Delay Cylindrical Fuses
MERSENTime-Delay Cylindrical Fuses

MERSEN Fuse: Class RK5, TRS-R Series, Time-Delay, 45 A, 600 V AC, 300 V DC

The MERSEN TRS45R is a Class RK5, TRS-R Series time-delay cylindrical fuse rated at 45 A, 600 V AC and 300 V DC. This non-indicating fuse is designed for overcurrent protection in industrial electrical systems…

SKU 3G-OTH-27740

Brand
MERSEN
Item
Fuse: Class RK5, TRS-R Series, Time-Delay, 45 A, 600 V AC, 300 V DC
Category
Time-Delay Cylindrical Fuses
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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
TRS45R
Series
TRS-R
Type
TRS-R Series, Time-Delay, 45 A, Non-Indicating
AC
600 V
DC
300 V

Technical Documents

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

Product Description

The MERSEN TRS45R is a Class RK5, TRS-R Series time-delay cylindrical fuse rated at 45 A, 600 V AC and 300 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 interprets demand and delivers genuine industrial equipment with specialist depth in controls and electrical components.

Frequently Asked Questions

What is the MERSEN TRS45R fuse used for?

The MERSEN TRS45R is a Class RK5, time-delay cylindrical fuse rated 45 A, 600 V AC, 300 V DC. It protects motor circuits, transformers, and other inductive loads from overcurrent and short circuits, allowing temporary inrush currents without nuisance opening.

What are the specifications of the MERSEN TRS45R fuse?

The MERSEN TRS45R is a Class RK5, TRS-R Series, time-delay, non-indicating fuse. It is rated 45 A, 600 V AC, 300 V DC. The manufacturer part number is TRS45R. It is designed for overcurrent protection in industrial electrical systems.

Where to buy MERSEN TRS45R fuses worldwide?

You can source MERSEN TRS45R fuses 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 on this MERSEN fuse.

How to select the correct MERSEN TRS45R fuse for an application?

Select the MERSEN TRS45R fuse based on your circuit's voltage (up to 600 V AC or 300 V DC) and continuous current (45 A). Ensure the Class RK5 time-delay characteristic matches your motor or transformer inrush requirements. Always verify the interrupting rating per NEC guidelines.

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, TRS-R Series, Time-Delay, 50 A, 600 V AC, 300 V DC, Non-Indicating (MPN TRS50R)
MERSEN
MERSEN Fuse: Class RK5, TRS-R Series, Time-Delay, 50 A, 600 V AC, 300 V DC, Non-Indicating (MPN TRS50R)
MERSEN Fuse: Class RK5, TRS-R Series, Time-Delay, 20 A, 600 V AC, 300 V DC, Non-Indicating (MPN TRS20R)
MERSEN
MERSEN Fuse: Class RK5, TRS-R Series, Time-Delay, 20 A, 600 V AC, 300 V DC, Non-Indicating (MPN TRS20R)
MERSEN Fuse: Class RK5, TRS-R Series, Time-Delay, 25 A, 600 V AC, 300 V DC, Non-Indicating (MPN TRS25R)
MERSEN
MERSEN Fuse: Class RK5, TRS-R Series, Time-Delay, 25 A, 600 V AC, 300 V DC, Non-Indicating (MPN TRS25R)
MERSEN Fuse: Class RK5, TRS-R Series, Time-Delay, 40 A, 600 V AC, 300 V DC, Non-Indicating (MPN TRS40R)
MERSEN
MERSEN Fuse: Class RK5, TRS-R Series, Time-Delay, 40 A, 600 V AC, 300 V DC, Non-Indicating (MPN TRS40R)
MERSEN Fuse: Class RK5, TRS-R Series, Time-Delay, 5 A, 600 V AC, 600 V DC, Non-Indicating (MPN TRS5R)
MERSEN
MERSEN Fuse: Class RK5, TRS-R Series, Time-Delay, 5 A, 600 V AC, 600 V DC, Non-Indicating (MPN TRS5R)
MERSEN Fuse: Class RK5, TRS-R Series, Time-Delay, 10 A, 600 V AC, 600 V DC, Non-Indicating (MPN TRS10R)
MERSEN
MERSEN Fuse: Class RK5, TRS-R Series, Time-Delay, 10 A, 600 V AC, 600 V DC, Non-Indicating (MPN TRS10R)

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MERSEN Fuse: Class RK5, TRS-R Series, Time-Delay, 1.25 A, 600 V AC, 600 V DC, Non-Indicating (MPN TRS1-1/4R)
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