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MERSEN Fuse: A4J Series, Class J, Blade Body, Fast-Acting, 125 A, 600 V AC, 300 V DC - Fast-Acting Bolt-On Fuses
MERSENFast-Acting Bolt-On Fuses

MERSEN Fuse: A4J Series, Class J, Blade Body, Fast-Acting, 125 A, 600 V AC, 300 V DC

The MERSEN A4J Series is a fast-acting bolt-on fuse with a Class J blade body, rated at 125 A, 600 V AC, and 300 V DC. It is non-indicating and operates as a single-stage device, providing overcurrent protection for…

SKU 3G-OTH-25298

Brand
MERSEN
Item
Fuse: A4J Series, Class J, Blade Body, Fast-Acting, 125 A, 600 V AC, 300 V DC
Category
Fast-Acting Bolt-On Fuses
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Technical Specifications

MERSEN
Manufacturer Part Number
A4J125
Series
A4J
Type
Class J, Blade Body, Fast-Acting, 125 A, Non-Indicating
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 bolt-on fuse with a Class J blade body, rated at 125 A, 600 V AC, and 300 V DC. It is non-indicating and operates as a single-stage device, providing overcurrent protection for industrial equipment.

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 bolt-on fuses. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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