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MERSEN Fuse: A4J Series, Class J, Cylindrical Body, Fast-Acting, 30 A, 600 V AC - Fast-Acting Cylindrical Fuses
MERSENFast-Acting Cylindrical Fuses

MERSEN Fuse: A4J Series, Class J, Cylindrical Body, Fast-Acting, 30 A, 600 V AC

The MERSEN A4J Series is a fast-acting cylindrical fuse, Class J, with a 30 A rating at 600 V AC and 300 V DC (MPN A4J30). This fuse features a cylindrical body design for industrial overcurrent protection.

SKU 3G-OTH-133120

Brand
MERSEN
Item
Fuse: A4J Series, Class J, Cylindrical Body, Fast-Acting, 30 A, 600 V AC
Category
Fast-Acting Cylindrical Fuses
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Technical Specifications

MERSEN
Manufacturer Part Number
A4J30
Type
Class J, Cylindrical Body, Fast-Acting, 30 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 is a fast-acting cylindrical fuse, Class J, with a 30 A rating at 600 V AC and 300 V DC (MPN A4J30). This fuse features a cylindrical body design for industrial overcurrent protection.

Frequently Asked Questions

What is the MERSEN A4J30 fuse used for?

The MERSEN A4J30 is a fast-acting cylindrical fuse used for industrial overcurrent protection. It is designed for Class J applications, protecting circuits rated up to 30 A at 600 V AC or 300 V DC. Typical uses include motor control centers, panelboards, and other power distribution equipment.

What are the specifications of the MERSEN A4J30 fuse?

The MERSEN A4J30 is a Class J, fast-acting cylindrical fuse rated at 30 A, 600 V AC, and 300 V DC. It has a cylindrical body design and is part of the A4J series. The manufacturer part number is A4J30. This fuse provides reliable overcurrent protection in industrial environments.

Where to buy MERSEN A4J30 fuses worldwide?

You can source MERSEN A4J30 fuses worldwide through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time. 3G Electric supplies genuine MERSEN components for industrial applications.

How to select the correct MERSEN A4J30 fuse for an application?

To select the correct MERSEN A4J30 fuse, verify your circuit's voltage (600 V AC or 300 V DC max) and continuous current (30 A). Ensure the fuse is fast-acting for sensitive electronics. Confirm the Class J rejection-style holder matches the cylindrical body. Always consult the manufacturer's data sheet for coordination and interrupting rating requirements.

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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