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MERSEN DHR0 Series R-Rated Fast-Acting Cylindrical Fuse - Fast-Acting & General-Purpose Cylindrical Fuses
MERSENFast-Acting & General-Purpose Cylindrical Fuses

MERSEN DHR0 Series R-Rated Fast-Acting Cylindrical Fuse

The MERSEN DHR0 Series is a fast-acting and general-purpose cylindrical fuse, R-rated at 5.08 kV AC and 390 A. This indicating fuse (MPN A051B2DHR0-18R) is designed for medium-voltage applications requiring…

SKU 3G-OTH-25246

Also listed as: A051B2DHR018R · A051B2DHR0 18R

Brand
MERSEN
Item
DHR0 Series R-Rated Fast-Acting Cylindrical Fuse
Part Number
A051B2DHR0-18R
Category
Fast-Acting & General-Purpose Cylindrical Fuses
Available to Order
Also known as:A051B2DHR0-18RMERSEN
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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
A051B2DHR0-18R
Series
DHR0
Type
R-Rated, 5.08 kV AC, 390 A, Gen Purpose, Indicating

Technical Documents

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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 390 A. This indicating fuse (MPN A051B2DHR0-18R) is designed for medium-voltage applications requiring overcurrent protection.

Frequently Asked Questions

What is the MERSEN DHR0 medium voltage fuse used for?

The MERSEN DHR0 Series fuse (MPN A051B2DHR0-18R) provides overcurrent protection in medium-voltage circuits up to 5.08 kV AC. It is commonly applied in motor starters, transformers, and switchgear where R-rated fast-acting performance is required.

What are the specifications of the MERSEN DHR0-18R fuse?

The MERSEN DHR0-18R is an R-rated, fast-acting cylindrical fuse rated at 5.08 kV AC and 390 A. It features an indicating design for visual blown-fuse detection. The series is DHR0, and the manufacturer part number is A051B2DHR0-18R.

Where to buy MERSEN DHR0 medium voltage fuses worldwide?

3G Electric supplies the MERSEN DHR0 Series fuse (A051B2DHR0-18R) to customers worldwide. We handle full logistics, customs clearance, and delivery to your site. Contact us for a quote and lead time on this R-rated, 5.08 kV AC, 390 A indicating fuse.

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

Select the MERSEN DHR0 fuse based on system voltage (5.08 kV AC), continuous current (390 A), and R-rating for motor-starting duty. Confirm the interrupting rating matches your fault current. For application-specific guidance, consult MERSEN technical documentation or contact 3G Electric.

Used in

Common applications for MERSEN
Industrial control panels — Mersen USCC1 and USCC2 UL Class CC fuse blocks for DIN rail mounting and finger-safe branch circuit protection.
Motor starters — Mersen ATQ time-delay fuses and DAR0 R-rated fuses for motor overload and short-circuit protection.
Power supplies and instrumentation — Mersen GGM and GSB fast-acting cylindrical fuses for overcurrent protection in compact electronic circuits.
DC systems — Mersen A30QS very-fast-acting square fuses rated 300 V DC for semiconductor and DC equipment protection.
Medium-voltage distribution — Mersen DAR0 R-rated fuses rated 5.08 kV AC for general-purpose overcurrent protection with visual indication.
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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.

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