We ship to the Philippines — door-to-door, customs and logistics handled by 3G Electric

MERSEN Fuse: A4J Series, Class J, Blade Body, Fast-Acting, 400 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, 400 A, 600 V AC, 300 V DC

The MERSEN A4J Series is a fast-acting bolt-on fuse, specifically the A4J400 model. It is a Class J, blade body, non-indicating fuse rated at 400 A, 600 V AC, and 300 V DC.

SKU 3G-OTH-25797

Brand
MERSEN
Item
Fuse: A4J Series, Class J, Blade Body, Fast-Acting, 400 A, 600 V AC, 300 V DC
Category
Fast-Acting Bolt-On Fuses
Available to Order
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Technical specs
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Local availability & support — the Philippines

Delivery
5–8 business days door-to-door; Bureau of Customs clearance typically 2–4 business days.
Payment
Invoicing in PHP or USD. Bank transfer and corporate PO accepted.
Ships to
Manila, Quezon City, Cebu, Davao, Batangas

Technical Specifications

MERSEN
Manufacturer Part Number
A4J400
Series
A4J
Type
Class J, Blade Body, Fast-Acting, 400 A, Non-Indicating
AC
600 V
DC
300 V

Technical Documents

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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, specifically the A4J400 model. It is a Class J, blade body, non-indicating fuse rated at 400 A, 600 V AC, and 300 V DC.

Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.

Frequently Asked Questions

What is the MERSEN A4J400 fuse used for?

The MERSEN A4J400 is a fast-acting, Class J bolt-on fuse used for protecting electrical circuits against overcurrents. It is commonly applied in industrial power distribution, motor control centers, and panelboards where high interrupting capacity and compact size are required.

What are the specifications of the MERSEN A4J400 fuse?

The MERSEN A4J400 is a 400 A, 600 V AC, 300 V DC fast-acting fuse with a blade body and non-indicating design. It belongs to the A4J Series and is Class J rated. The manufacturer part number is A4J400.

Where to buy MERSEN A4J400 fuses worldwide?

You can source MERSEN A4J400 fuses through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time.

How to select the correct MERSEN A4J400 fuse for an application?

To select the MERSEN A4J400, verify your circuit's voltage (up to 600 V AC or 300 V DC) and continuous current (400 A). Ensure the fuse holder accepts Class J blade-style fuses. For fast-acting protection, confirm the application requires minimal time delay.

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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Cross-referenced by specification & description
MERSEN Fuse: A4J Series, Class J, Blade Body, Fast-Acting, 225 A, 600 V AC, 300 V DC, Non-Indicating (MPN A4J225)
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MERSEN Fuse: A4J Series, Class J, Blade Body, Fast-Acting, 225 A, 600 V AC, 300 V DC, Non-Indicating (MPN A4J225)
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MERSEN Fuse: A4J Series, Class J, Blade Body, Fast-Acting, 150 A, 600 V AC, 300 V DC, Non-Indicating (MPN A4J150)

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