We ship worldwide — Singapore, Australia, Malaysia, Indonesia, Philippines, India, Middle East & more

MERSEN Fuse: Class RK5, TR-R Series, Time-Delay, 400 mA, 250 V AC, 250 V DC - Time-Delay Cylindrical Fuses
MERSENTime-Delay Cylindrical Fuses

MERSEN Fuse: Class RK5, TR-R Series, Time-Delay, 400 mA, 250 V AC, 250 V DC

The MERSEN TR-R Series Class RK5 Time-Delay Cylindrical Fuse (MPN TR4/10R) is a 400 mA, 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-26865

Also listed as: TR410R · TR4 10R · TR4-10R

Brand
MERSEN
Item
Fuse: Class RK5, TR-R Series, Time-Delay, 400 mA, 250 V AC, 250 V DC
Category
Time-Delay Cylindrical Fuses
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineerMessage via Telegram
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Local availability & support

Delivery
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
TR4/10R
Series
TR-R
Type
TR-R Series, Time-Delay, 400 mA, Non-Indicating
AC
250 V
DC
250 V

Technical Documents

No technical documents available for this product.
Request documentation
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

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

Product Description

The MERSEN TR-R Series Class RK5 Time-Delay Cylindrical Fuse (MPN TR4/10R) is a 400 mA, 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 — and we supply far more than is listed. Our specialist depth in electrical components, including authorised distribution for brands like MERSEN, ensures you get the right solution for your application.

Frequently Asked Questions

What is the MERSEN TR4/10R fuse used for?

The MERSEN TR4/10R is a Class RK5, time-delay cylindrical fuse rated 400 mA at 250 V AC/DC. It protects industrial circuits from overloads and short circuits, commonly used in motor control centers, panel boards, and branch circuits where inrush currents occur.

What are the specifications of the MERSEN TR4/10R fuse?

The MERSEN TR4/10R is part of the TR-R series, a Class RK5 time-delay fuse. It has a current rating of 400 mA and a voltage rating of 250 V AC and 250 V DC. It is non-indicating and has a cylindrical body. The manufacturer part number is TR4/10R.

Where to buy MERSEN TR4/10R fuses worldwide?

3G Electric supplies MERSEN TR4/10R fuses worldwide. As a global industrial distributor, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time; we source and deliver this fuse to any country.

How to select the correct MERSEN TR4/10R fuse for an application?

To select the MERSEN TR4/10R, verify your circuit's voltage (250 V AC/DC max) and continuous current (400 mA). Ensure the Class RK5 time-delay characteristic matches your load's inrush profile, such as motors or transformers. Always consult the manufacturer's data sheet for coordination and interrupting rating.

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.

You might also need

Burners & Combustion Pumps & Compressors Spare Parts All Products

Compatible alternatives & equivalents

Cross-referenced by specification & description
MERSEN Fuse: Class RK5, TR-R Series, Time-Delay, 500 mA, 250 V AC, 250 V DC, Non-Indicating (MPN TR1/2R)
MERSEN
MERSEN Fuse: Class RK5, TR-R Series, Time-Delay, 500 mA, 250 V AC, 250 V DC, Non-Indicating (MPN TR1/2R)
MERSEN Fuse: Class RK5, TR-R Series, Time-Delay, 800 mA, 250 V AC, 250 V DC, Non-Indicating (MPN TR8/10R)
MERSEN
MERSEN Fuse: Class RK5, TR-R Series, Time-Delay, 800 mA, 250 V AC, 250 V DC, Non-Indicating (MPN TR8/10R)
MERSEN Fuse: Class RK5, TR-R Series, Time-Delay, 1 A, 250 V AC, 250 V DC, Non-Indicating (MPN TR1R)
MERSEN
MERSEN Fuse: Class RK5, TR-R Series, Time-Delay, 1 A, 250 V AC, 250 V DC, Non-Indicating (MPN TR1R)
MERSEN Fuse: Class RK5, TR-R Series, Time-Delay, 600 mA, 250 V AC, 250 V DC, Non-Indicating (MPN TR6/10R)
MERSEN
MERSEN Fuse: Class RK5, TR-R Series, Time-Delay, 600 mA, 250 V AC, 250 V DC, Non-Indicating (MPN TR6/10R)
MERSEN Fuse: Class RK5, TR-R Series, Time-Delay, 1.4 A, 250 V AC, 250 V DC, Non-Indicating (MPN TR1-4/10R)
MERSEN
MERSEN Fuse: Class RK5, TR-R Series, Time-Delay, 1.4 A, 250 V AC, 250 V DC, Non-Indicating (MPN TR1-4/10R)
MERSEN Fuse: Class RK5, TR-R Series, Time-Delay, 1.6 A, 250 V AC, 250 V DC, Non-Indicating (MPN TR1-6/10R)
MERSEN
MERSEN Fuse: Class RK5, TR-R Series, Time-Delay, 1.6 A, 250 V AC, 250 V DC, Non-Indicating (MPN TR1-6/10R)

More from MERSEN

View all MERSEN parts
MERSEN Fuse: Class RK5, TRS-R Series, Time-Delay, 1.8 A, 600 V AC, 600 V DC, Non-Indicating (MPN TRS1-8/10R)
MERSEN
MERSEN Fuse: Class RK5, TRS-R Series, Time-Delay, 1.8 A, 600 V AC, 600 V DC, Non-Indicating (MPN TRS1-8/10R)
MERSEN Fuse: Class RK5, TR-R Series, Time-Delay, 3.5 A, 250 V AC, 160 V DC, Non-Indicating (MPN TR3-1/2R)
MERSEN
MERSEN Fuse: Class RK5, TR-R Series, Time-Delay, 3.5 A, 250 V AC, 160 V DC, Non-Indicating (MPN TR3-1/2R)
MERSEN Fuse: GSC Series, Time-Delay, 250 mA, 250 V AC, 5 mm x 20 mm (MPN GSC1/4)
MERSEN
MERSEN Fuse: GSC Series, Time-Delay, 250 mA, 250 V AC, 5 mm x 20 mm (MPN GSC1/4)
MERSEN Fuse: TRM Series, Midget, Time-Delay, 1.125 A, 250 V AC, 13/32 in x 1 1/2 in, Non-Indicating (MPN TRM1-1/8)
MERSEN
MERSEN Fuse: TRM Series, Midget, Time-Delay, 1.125 A, 250 V AC, 13/32 in x 1 1/2 in, Non-Indicating (MPN TRM1-1/8)
MERSEN Fuse: Class RK5, TRS-R Series, Time-Delay, 200 mA, 600 V AC, 600 V DC, Non-Indicating (MPN TRS2/10R)
MERSEN
MERSEN Fuse: Class RK5, TRS-R Series, Time-Delay, 200 mA, 600 V AC, 600 V DC, Non-Indicating (MPN TRS2/10R)
MERSEN Fuse: GFN Series, Midget, Time-Delay, 1.125 A, 250 V AC, 13/32 in x 1 1/2 in, Indicating (MPN GFN1-1/8)
MERSEN
MERSEN Fuse: GFN Series, Midget, Time-Delay, 1.125 A, 250 V AC, 13/32 in x 1 1/2 in, Indicating (MPN GFN1-1/8)
Fuse: ATQR Series, Time-Delay, 125 mA, 600 V AC, Non-Indicating, 13/32 in x 1 1/2 in (MPN ATQR1/8)
MERSEN
Fuse: ATQR Series, Time-Delay, 125 mA, 600 V AC, Non-Indicating, 13/32 in x 1 1/2 in (MPN ATQR1/8)
MERSEN Fuse: Class RK5, TRS-R Series, Time-Delay, 15 A, 600 V AC, 300 V DC, Non-Indicating (MPN TRS15R)
MERSEN
MERSEN Fuse: Class RK5, TRS-R Series, Time-Delay, 15 A, 600 V AC, 300 V DC, Non-Indicating (MPN TRS15R)