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

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

The MERSEN TRS-R Series Class RK5 Time-Delay Blade Fuse (MPN TRS300R) is a 300 A, non-indicating fuse rated for 600 V AC and 600 V DC. As a time-delay blade fuse, it is designed to handle temporary inrush currents…

SKU 3G-OTH-27039

Brand
MERSEN
Item
Fuse: Class RK5, TRS-R Series, Time-Delay, 300 A, 600 V AC, 600 V DC
Category
Time-Delay Blade Fuses
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Technical Specifications

MERSEN
Manufacturer Part Number
TRS300R
Series
TRS-R
Type
TRS-R Series, Time-Delay, 300 A, Non-Indicating
AC
600 V
DC
600 V

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

Product Description

The MERSEN TRS-R Series Class RK5 Time-Delay Blade Fuse (MPN TRS300R) is a 300 A, non-indicating fuse rated for 600 V AC and 600 V DC. As a time-delay blade fuse, it is designed to handle temporary inrush currents without nuisance opening. 3G Electric interprets customer demand and delivers this genuine industrial fuse across 14 departments — and far more — with specialist depth in combustion, pumps and controls as an authorised distributor for brands including MERSEN, Schneider, ABB, Siemens, SKF, Festo, Fluke, Interpump and FBR.

Frequently Asked Questions

What is the MERSEN TRS300R fuse used for?

The MERSEN TRS300R is a Class RK5 time-delay blade fuse rated 300 A, 600 V AC, and 600 V DC. It protects industrial motor circuits, transformers, and other equipment against overloads and short circuits, providing reliable overcurrent protection in manufacturing, power distribution, and heavy machinery applications.

What are the specifications of the MERSEN TRS300R fuse?

The MERSEN TRS300R is a Class RK5, TRS-R Series, time-delay, non-indicating fuse rated 300 A, 600 V AC, and 600 V DC. It is a blade-type fuse designed for high-current industrial protection. The manufacturer part number is TRS300R, and it is part of the TRS-R series from MERSEN.

Where to buy MERSEN TRS300R fuses worldwide?

You can source the MERSEN TRS300R fuse through 3G Electric, a global industrial equipment distributor established in 1990. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time; we supply genuine MERSEN components for industrial applications.

How to select the correct MERSEN TRS300R fuse for an application?

To select the MERSEN TRS300R, verify your circuit voltage does not exceed 600 V AC or 600 V DC and that the continuous load current is below 300 A. Ensure the fuse holder accommodates Class RK5 blade dimensions. For time-delay applications like motor starting, the TRS-R series handles inrush currents without nuisance opening.

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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Compatible alternatives & equivalents

Cross-referenced by specification & description
MERSEN Fuse: Class RK5, TRS-R Series, Time-Delay, 350 A, 600 V AC, 600 V DC, Non-Indicating (MPN TRS350R)
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MERSEN Fuse: Class RK5, TRS-R Series, Time-Delay, 350 A, 600 V AC, 600 V DC, Non-Indicating (MPN TRS350R)
MERSEN Fuse: Class RK5, TRS-R Series, Time-Delay, 200 A, 600 V AC, 600 V DC, Non-Indicating (MPN TRS200R)
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MERSEN Fuse: Class RK5, TRS-R Series, Time-Delay, 200 A, 600 V AC, 600 V DC, Non-Indicating (MPN TRS200R)
MERSEN Fuse: Class RK5, TRS-R Series, Time-Delay, 250 A, 600 V AC, 600 V DC, Non-Indicating (MPN TRS250R)
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MERSEN Fuse: Class RK5, TRS-R Series, Time-Delay, 250 A, 600 V AC, 600 V DC, Non-Indicating (MPN TRS250R)
MERSEN Fuse: Class RK5, TRS-R Series, Time-Delay, 400 A, 600 V AC, 600 V DC, Non-Indicating (MPN TRS400R)
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MERSEN Fuse: Class RK5, TRS-R Series, Time-Delay, 400 A, 600 V AC, 600 V DC, Non-Indicating (MPN TRS400R)
MERSEN Fuse: Class RK5, TRS-RID Series, Time-Delay, 300 A, 600 V AC, 600 V DC, Indicating (MPN TRS300RID)
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MERSEN Fuse: Class RK5, TRS-RID Series, Time-Delay, 300 A, 600 V AC, 600 V DC, Indicating (MPN TRS300RID)
MERSEN Fuse: Class RK5, TRS-R Series, Time-Delay, 90 A, 600 V AC, 600 V DC, Non-Indicating (MPN TRS90R)
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MERSEN Fuse: Class RK5, TRS-R Series, Time-Delay, 90 A, 600 V AC, 600 V DC, Non-Indicating (MPN TRS90R)

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MERSEN Fuse: Class RK5, TRS-R Series, Time-Delay, 175 A, 600 V AC, 600 V DC, Non-Indicating (MPN TRS175R)
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MERSEN Fuse: Class RK5, TRS-RID Series, Time-Delay, 250 A, 600 V AC, 600 V DC, Indicating (MPN TRS250RID)
MERSEN Fuse: Class RK5, TRS-RID Series, Time-Delay, 100 A, 600 V AC, 600 V DC, Indicating (MPN TRS100RID)
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MERSEN Fuse: Class RK5, TRS-R Series, Time-Delay, 450 A, 600 V AC, 600 V DC, Non-Indicating (MPN TRS450R)
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MERSEN Fuse: Class RK5, TRS-RID Series, Time-Delay, 90 A, 600 V AC, 600 V DC, Indicating (MPN TRS90RID)
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MERSEN Fuse: Class RK5, TRS-RID Series, Time-Delay, 90 A, 600 V AC, 600 V DC, Indicating (MPN TRS90RID)
MERSEN Fuse: Class RK5, TRS-R Series, Time-Delay, 75 A, 600 V AC, 600 V DC, Non-Indicating (MPN TRS75R)
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MERSEN Fuse: Class RK5, TRS-R Series, Time-Delay, 75 A, 600 V AC, 600 V DC, Non-Indicating (MPN TRS75R)
MERSEN Fuse: Class RK5, TR-RID Series, Time-Delay, 300 A, 250 V AC, 250 V DC, Indicating (MPN TR300RID)
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MERSEN Fuse: Class RK5, TR-RID Series, Time-Delay, 300 A, 250 V AC, 250 V DC, Indicating (MPN TR300RID)