Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

MERSEN Medium Voltage Fuses: DHR0 Series, R-Rated, 5.08 kV AC, 100 A, Gen Purpose - Fast-Acting & General-Purpose Cylindrical Fuses
MERSENFast-Acting & General-Purpose Cylindrical Fuses

MERSEN Medium Voltage Fuses: DHR0 Series, R-Rated, 5.08 kV AC, 100 A, Gen Purpose

The MERSEN DHR0 Series is a fast-acting and general-purpose cylindrical fuse, R-rated at 5.08 kV AC and 100 A, with an indicating feature. This medium voltage fuse, model A051B1DHR0-3R, is designed for overcurrent…

SKU 3G-OTH-25038

Also listed as: A051B1DHR03R · A051B1DHR0 3R

Brand
MERSEN
Item
Medium Voltage Fuses: DHR0 Series, R-Rated, 5.08 kV AC, 100 A, Gen Purpose
Category
Fast-Acting & General-Purpose 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 — 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
A051B1DHR0-3R
Series
DHR0
Type
R-Rated, 5.08 kV AC, 100 A, Gen Purpose, Indicating

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 DHR0 Series is a fast-acting and general-purpose cylindrical fuse, R-rated at 5.08 kV AC and 100 A, with an indicating feature. This medium voltage fuse, model A051B1DHR0-3R, is designed for overcurrent protection in industrial electrical systems.

Frequently Asked Questions

What is the MERSEN DHR0 Series fuse used for?

The MERSEN DHR0 Series fuse, model A051B1DHR0-3R, is a fast-acting, general-purpose cylindrical fuse used for overcurrent protection in medium-voltage industrial electrical systems. It is R-rated at 5.08 kV AC and 100 A, with an indicating feature for quick identification of a blown fuse.

What are the specifications of the MERSEN DHR0 Series fuse?

The MERSEN DHR0 Series fuse, part number A051B1DHR0-3R, is rated at 5.08 kV AC and 100 A. It is an R-rated, fast-acting, general-purpose cylindrical fuse with an indicating feature. The series is DHR0, and the brand is MERSEN.

Where to buy MERSEN DHR0 Series fuses worldwide?

You can source the MERSEN DHR0 Series fuse, model A051B1DHR0-3R, through 3G Electric. As a global industrial equipment distributor, 3G Electric handles full logistics, customs clearance, and delivery to worldwide destinations. Contact 3G Electric for availability and lead time.

How to select the correct MERSEN DHR0 Series fuse for an application?

To select the correct MERSEN DHR0 Series fuse, verify the system voltage (5.08 kV AC) and current rating (100 A). Ensure the fuse is R-rated for motor-starting applications. The indicating feature helps identify a blown fuse. Always consult the manufacturer's data sheet 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 fast-acting & general-purpose 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 Medium Voltage Fuses: DHR0 Series, R-Rated, 5.08 kV AC, 70 A, Gen Purpose, Indicating (MPN A051B1DHR0-2R)
MERSEN
MERSEN Medium Voltage Fuses: DHR0 Series, R-Rated, 5.08 kV AC, 70 A, Gen Purpose, Indicating (MPN A051B1DHR0-2R)
MERSEN Medium Voltage Fuses: DHR0 Series, R-Rated, 5.08 kV AC, 200 A, Gen Purpose, Indicating (MPN A051B1DHR0-9R)
MERSEN
MERSEN Medium Voltage Fuses: DHR0 Series, R-Rated, 5.08 kV AC, 200 A, Gen Purpose, Indicating (MPN A051B1DHR0-9R)
MERSEN Medium Voltage Fuses: DHR0 Series, R-Rated, 5.08 kV AC, 130 A, Gen Purpose, Indicating (MPN A051B1DHR0-4R)
MERSEN
MERSEN Medium Voltage Fuses: DHR0 Series, R-Rated, 5.08 kV AC, 130 A, Gen Purpose, Indicating (MPN A051B1DHR0-4R)
MERSEN Medium Voltage Fuses: DHR0 Series, R-Rated, 5.08 kV AC, 170 A, Gen Purpose, Indicating (MPN A051B1DHR0-6R)
MERSEN
MERSEN Medium Voltage Fuses: DHR0 Series, R-Rated, 5.08 kV AC, 170 A, Gen Purpose, Indicating (MPN A051B1DHR0-6R)
MERSEN Medium Voltage Fuses: DAR0 Series, R-Rated, 5.08 kV AC, 700 A, Gen Purpose, Indicating (MPN A051B2DAR0-38R)
MERSEN
MERSEN Medium Voltage Fuses: DAR0 Series, R-Rated, 5.08 kV AC, 700 A, Gen Purpose, Indicating (MPN A051B2DAR0-38R)
MERSEN Medium Voltage Fuses: DAR0 Series, R-Rated, 5.08 kV AC, 450 A, Gen Purpose, Indicating (MPN A051B2DAR0-24R)
MERSEN
MERSEN Medium Voltage Fuses: DAR0 Series, R-Rated, 5.08 kV AC, 450 A, Gen Purpose, Indicating (MPN A051B2DAR0-24R)

More from MERSEN

View all MERSEN parts
MERSEN Medium Voltage Fuse: A500 Series, R-Rated, 5 kV AC, 3 A, Fast-Acting, Non-Indicating (MPN A500T3E-1)
MERSEN
MERSEN Medium Voltage Fuse: A500 Series, R-Rated, 5 kV AC, 3 A, Fast-Acting, Non-Indicating (MPN A500T3E-1)
MERSEN Medium Voltage Fuses: DHR0 Series, R-Rated, 5.08 kV AC, 450 A, Gen Purpose, Indicating (MPN A051B2DHR0-24R)
MERSEN
MERSEN Medium Voltage Fuses: DHR0 Series, R-Rated, 5.08 kV AC, 450 A, Gen Purpose, Indicating (MPN A051B2DHR0-24R)
MERSEN Medium Voltage Fuses: 9F60 Series, R-Rated, 2.4 kV AC, 130 A, Gen Purpose, Non-Indicating (MPN 9F60LCL304)
MERSEN
MERSEN Medium Voltage Fuses: 9F60 Series, R-Rated, 2.4 kV AC, 130 A, Gen Purpose, Non-Indicating (MPN 9F60LCL304)
MERSEN Medium Voltage Fuses: DHR0 Series, R-Rated, 5.08 kV AC, 150 A, Gen Purpose, Indicating (MPN A051B1DHR0-5R)
MERSEN
MERSEN Medium Voltage Fuses: DHR0 Series, R-Rated, 5.08 kV AC, 150 A, Gen Purpose, Indicating (MPN A051B1DHR0-5R)
MERSEN Medium Voltage Fuses: 9F60 Series, R-Rated, 5.5 kV AC, 1 A, Gen Purpose, Indicating (MPN 9F60BBD001-S)
MERSEN
MERSEN Medium Voltage Fuses: 9F60 Series, R-Rated, 5.5 kV AC, 1 A, Gen Purpose, Indicating (MPN 9F60BBD001-S)
MERSEN Medium Voltage Fuses: 9F60 Series, R-Rated, 5.5 kV AC, 2 A, Gen Purpose, Non-Indicating (MPN 9F60BBN002)
MERSEN
MERSEN Medium Voltage Fuses: 9F60 Series, R-Rated, 5.5 kV AC, 2 A, Gen Purpose, Non-Indicating (MPN 9F60BBN002)
MERSEN Medium Voltage Fuses: DHR0 Series, R-Rated, 5.08 kV AC, 230 A, Gen Purpose, Indicating (MPN A051B1DHR0-12R)
MERSEN
MERSEN Medium Voltage Fuses: DHR0 Series, R-Rated, 5.08 kV AC, 230 A, Gen Purpose, Indicating (MPN A051B1DHR0-12R)
MERSEN Medium Voltage Fuses: DHR0 Series, R-Rated, 5.08 kV AC, 390 A, Gen Purpose, Indicating (MPN A051B2DHR0-18R)
MERSEN
MERSEN Medium Voltage Fuses: DHR0 Series, R-Rated, 5.08 kV AC, 390 A, Gen Purpose, Indicating (MPN A051B2DHR0-18R)