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MERSEN HSJ20 Very-Fast-Acting Cylindrical Fuse - Very-Fast-Acting Cylindrical Fuses
MERSENVery-Fast-Acting Cylindrical Fuses

MERSEN HSJ20 Very-Fast-Acting Cylindrical Fuse

The MERSEN HSJ Series is a very-fast-acting cylindrical fuse, Class J, with a 20 A rating at 600 V AC and 500 V DC (MPN HSJ20). This MERSEN fuse provides overcurrent protection for industrial equipment requiring…

SKU 3G-OTH-24825

Also listed as: HSJ 20 · HSJ-20

Brand
MERSEN
Item
HSJ20 Very-Fast-Acting Cylindrical Fuse
Part Number
HSJ20
Category
Very-Fast-Acting Cylindrical Fuses
Available to Order
Also known as:HSJ20MERSEN
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Technical Specifications

MERSEN
Manufacturer Part Number
HSJ20
Series
HSJ
Type
Class J, Cylindrical Body, Very-Fast-Acting, 20 A
AC
600 V
DC
500 V

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

Product Description

The MERSEN HSJ Series is a very-fast-acting cylindrical fuse, Class J, with a 20 A rating at 600 V AC and 500 V DC (MPN HSJ20). This MERSEN fuse provides overcurrent protection for industrial equipment requiring rapid response to short circuits.

Frequently Asked Questions

What is the MERSEN HSJ20 fuse used for?

The MERSEN HSJ20 is a very-fast-acting Class J cylindrical fuse rated 20 A at 600 V AC and 500 V DC. It provides overcurrent protection for industrial equipment such as motor drives, power supplies, and control panels that require rapid response to short circuits.

What are the specifications of the MERSEN HSJ20 fuse?

The MERSEN HSJ20 is a Class J, cylindrical-body, very-fast-acting fuse rated 20 A at 600 V AC and 500 V DC. It is part of the HSJ series and carries the manufacturer part number HSJ20. These ratings ensure reliable protection in demanding industrial circuits.

Where to buy MERSEN HSJ20 fuses worldwide?

3G Electric supplies the MERSEN HSJ20 fuse to customers worldwide. We handle full logistics, customs clearance, and delivery to your site. Contact us for pricing and lead time on this Class J, 20 A, 600 V AC / 500 V DC very-fast-acting fuse.

How to select the right MERSEN HSJ fuse for my application?

To select the correct MERSEN HSJ fuse, match the voltage rating (600 V AC or 500 V DC) and current rating (e.g., 20 A for HSJ20) to your circuit requirements. Ensure the Class J rejection-style holder is used. Consult a qualified engineer for coordination with upstream protection.

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 very-fast-acting 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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