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MERSEN Fuse: A4J Series, Class J, Cylindrical Body, Fast-Acting, 3 A, 600 V AC - Fast-Acting Cylindrical Fuses
MERSENFast-Acting Cylindrical Fuses

MERSEN Fuse: A4J Series, Class J, Cylindrical Body, Fast-Acting, 3 A, 600 V AC

The MERSEN A4J Series Fast-Acting Cylindrical Fuse (MPN A4J3) is a Class J fuse rated at 3 A, 600 V AC, and 300 V DC. This cylindrical-body fuse is designed for fast-acting overcurrent protection in industrial…

SKU 3G-OTH-133116

Brand
MERSEN
Item
Fuse: A4J Series, Class J, Cylindrical Body, Fast-Acting, 3 A, 600 V AC
Category
Fast-Acting Cylindrical Fuses
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Technical Specifications

MERSEN
Manufacturer Part Number
A4J3
Type
Class J, Cylindrical Body, Fast-Acting, 3 A
AC
600 V
DC
300 V
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MERSEN Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The MERSEN A4J Series Fast-Acting Cylindrical Fuse (MPN A4J3) is a Class J fuse rated at 3 A, 600 V AC, and 300 V DC. This cylindrical-body fuse is designed for fast-acting overcurrent protection in industrial electrical circuits.

Frequently Asked Questions

What is the MERSEN A4J3 fuse used for?

The MERSEN A4J3 is a Class J fast-acting cylindrical fuse rated 3 A, 600 V AC, 300 V DC. It provides overcurrent protection in industrial electrical circuits, such as motor control centers, panelboards, and branch circuits, where rapid clearing of faults is required.

What are the specifications of the MERSEN A4J3 fuse?

The MERSEN A4J3 is a Class J, cylindrical-body, fast-acting fuse rated 3 A, 600 V AC, and 300 V DC. It is part of the A4J series and carries the manufacturer part number A4J3. These ratings ensure reliable protection in industrial power distribution systems.

Where to buy MERSEN A4J3 fuses worldwide?

3G Electric supplies the MERSEN A4J3 fuse worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your site. Contact us for pricing and lead time on this Class J fast-acting fuse.

How to select the right MERSEN A4J series fuse for my circuit?

Select a MERSEN A4J series fuse by matching its voltage rating (600 V AC / 300 V DC) and current rating (e.g., 3 A for the A4J3) to your circuit's requirements. Ensure the Class J rejection-style holder is used. Consult a qualified engineer 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 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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