Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

3G Electric
MERSEN A4J200 Fast-Acting Bolt-On Fuse - Fast-Acting Bolt-On Fuses
MERSENFast-Acting Bolt-On Fuses

MERSEN A4J200 Fast-Acting Bolt-On Fuse

<p>The MERSEN A4J200 is a fast-acting, bolt-on fuse from the A4J series, designed for Class J applications. Rated at 200 A and 600 V AC / 300 V DC, this non-indicating fuse features a blade body for secure mounting…

SKU 3G-OTH-25418

Brand
MERSEN
Item
A4J200 Fast-Acting Bolt-On Fuse
Part Number
A4J200
Category
Fast-Acting Bolt-On Fuses
Available to Order
Also known as:A4J200MERSEN
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineerMessage via Telegram
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

MERSEN
Manufacturer Part Number
A4J200
Series
A4J
Type
Class J, Blade Body, Fast-Acting, 200 A, Non-Indicating
AC
600 V
DC
300 V

Technical Documents

No technical documents available for this product.
Request documentation
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

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

Product Description

<p>The MERSEN A4J200 is a fast-acting, bolt-on fuse from the A4J series, designed for Class J applications. Rated at 200 A and 600 V AC / 300 V DC, this non-indicating fuse features a blade body for secure mounting. It is suitable for protecting power semiconductors, drives, and other sensitive equipment where fast interruption is critical.</p><p>As a Singapore-based supplier, 3G Electric offers the A4J200 with SGD quotes on request, GST handled for local buyers, and fast delivery across Singapore and Southeast Asia. Worldwide shipping is also available.</p>

Frequently Asked Questions

What are the voltage and current ratings of the MERSEN A4J200?

The MERSEN A4J200 is rated for 200 A and 600 V AC / 300 V DC.

Is the A4J200 a fast-acting fuse and what is its body type?

Yes, it is fast-acting with a blade body, and it is non-indicating. It is a Class J fuse.

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.
Not sure this is the right part? Photo-identify it

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.

You might also need

Burners & Combustion Pumps & Compressors Spare Parts All Products

More from MERSEN

View all MERSEN parts
Class J fast-acting bolt-on fuse with blade body, rated 400 A, 600 V AC, 300 V DC. Non-indicating design. Suitable for overcurrent protection in power distribution, motor control centers, and panelboards requiring high interrupting capacity in a compact form
MERSEN
Class J fast-acting bolt-on fuse with blade body, rated 400 A, 600 V AC, 300 V DC. Non-indicating design. Suitable for overcurrent protection in power distribution, motor control centers, and panelboards requiring high interrupting capacity in a compact form

Customer reviews

No reviews yet — be the first

Questions & answers

No questions yet — ask us the first