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MERSEN Medium Voltage Fuses: DHR0 Series, R-Rated, 5.08 kV AC, 390 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, 390 A, Gen Purpose

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

Brand
MERSEN
Item
Medium Voltage Fuses: DHR0 Series, R-Rated, 5.08 kV AC, 390 A, Gen Purpose
Category
Fast-Acting & General-Purpose Cylindrical Fuses
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Technical Specifications

MERSEN
Manufacturer Part Number
A051B2DHR0-18R
Series
DHR0
Type
R-Rated, 5.08 kV AC, 390 A, Gen Purpose, Indicating
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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
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.

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