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

MERSEN A60X400-4 Fast-Acting Bolt-On Fuse, 400 A, 600 V AC, Non-Indicating - Fast-Acting Bolt-On Fuses
MERSENFast-Acting Bolt-On Fuses

MERSEN A60X400-4 Fast-Acting Bolt-On Fuse, 400 A, 600 V AC, Non-Indicating

The MERSEN A60X Series A60X400-4 is a fast-acting, non-indicating semiconductor fuse rated at 400 A and 600 V AC. This bolt-on fuse is designed for overcurrent protection in power electronic circuits.

SKU 3G-OTH-26239

Also listed as: A60X4004 · A60X400 4

Brand
MERSEN
Item
A60X400-4 Fast-Acting Bolt-On Fuse, 400 A, 600 V AC, Non-Indicating
Category
Fast-Acting Bolt-On Fuses
Available to Order
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
A60X400-4
Series
A60X

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

The MERSEN A60X Series A60X400-4 is a fast-acting, non-indicating semiconductor fuse rated at 400 A and 600 V AC. This bolt-on fuse is designed for overcurrent protection in power electronic circuits.

Frequently Asked Questions

What is the MERSEN A60X400-4 semiconductor fuse used for?

The MERSEN A60X400-4 is a fast-acting bolt-on fuse used for overcurrent protection in power electronic circuits. It safeguards sensitive semiconductor devices such as rectifiers, inverters, and drives by clearing faults rapidly. Typical applications include industrial motor drives, UPS systems, and power conversion equipment.

What are the specifications of the MERSEN A60X400-4 fuse?

The MERSEN A60X400-4 is a 400 A, 600 V AC fast-acting semiconductor fuse from the A60X series. It is non-indicating and features a bolt-on mounting style. The fuse is designed for high-speed overcurrent protection in power electronics, with a compact footprint suitable for panel installation.

Where to buy the MERSEN A60X400-4 fuse worldwide?

3G Electric supplies the MERSEN A60X400-4 fuse worldwide. As a global industrial equipment distributor, we handle full logistics, customs clearance, and delivery to your location. Contact our team for a quote and lead time. We source and deliver this fuse to support your power protection needs.

How to select the correct MERSEN A60X400-4 fuse for my application?

To select the MERSEN A60X400-4, verify your circuit's voltage (600 V AC max) and continuous current (400 A). Ensure the fuse's fast-acting characteristic matches your semiconductor's surge withstand. Confirm bolt-on mounting compatibility with your panel. For guidance, consult MERSEN's application notes or contact 3G Electric for sourcing assistance.

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.

You might also need

Burners & Combustion Pumps & Compressors Spare Parts All Products

Compatible alternatives & equivalents

Cross-referenced by specification & description
Semiconductor Fuse: A60X Series, Fast-Acting, 200 A, 600 V AC, Non-Indicating (MPN A60X200-4)
MERSEN
Semiconductor Fuse: A60X Series, Fast-Acting, 200 A, 600 V AC, Non-Indicating (MPN A60X200-4)
Fast-acting bolt-on fuse from the A60X Series, rated 100 A at 600 V AC. Non-indicating design for AC-only overcurrent protection. Suitable for use in industrial control panels and power distribution systems where rapid fault interruption is required
MERSEN
Fast-acting bolt-on fuse from the A60X Series, rated 100 A at 600 V AC. Non-indicating design for AC-only overcurrent protection. Suitable for use in industrial control panels and power distribution systems where rapid fault interruption is required
Fast-acting bolt-on fuse from the A60X Series, rated 50 A at 600 V AC. Non-indicating design for AC-only circuits. Provides overcurrent protection in industrial equipment such as rectifiers, inverters, and power supplies
MERSEN
Fast-acting bolt-on fuse from the A60X Series, rated 50 A at 600 V AC. Non-indicating design for AC-only circuits. Provides overcurrent protection in industrial equipment such as rectifiers, inverters, and power supplies
Fast-acting bolt-on fuse from the MERSEN A60X Series, rated 150 A at 600 V AC. Non-indicating design for AC-only circuits. Used for overcurrent protection in semiconductor applications, rectifiers, and power supplies where rapid response to faults is required
MERSEN
Fast-acting bolt-on fuse from the MERSEN A60X Series, rated 150 A at 600 V AC. Non-indicating design for AC-only circuits. Used for overcurrent protection in semiconductor applications, rectifiers, and power supplies where rapid response to faults is required
Fast-acting bolt-on fuse for AC-only overcurrent protection. Rated 300 A at 600 V AC, non-indicating design. Suitable for safeguarding semiconductor devices in industrial equipment such as drives, power supplies, and converters
MERSEN
Fast-acting bolt-on fuse for AC-only overcurrent protection. Rated 300 A at 600 V AC, non-indicating design. Suitable for safeguarding semiconductor devices in industrial equipment such as drives, power supplies, and converters
Fast-acting bolt-on fuse from the A60X series, rated 600 A at 600 V AC. Non-indicating design for AC-only applications. Provides overcurrent protection in industrial power systems, commonly used to safeguard semiconductor devices such as rectifiers, inverters, and drives
MERSEN
Fast-acting bolt-on fuse from the A60X series, rated 600 A at 600 V AC. Non-indicating design for AC-only applications. Provides overcurrent protection in industrial power systems, commonly used to safeguard semiconductor devices such as rectifiers, inverters, and drives

More from MERSEN

View all MERSEN parts
Fast-acting bolt-on fuse rated 800 A, 150 V AC and 150 V DC. Part of the A15QS series. Used for overcurrent protection of semiconductor devices in power electronic circuits
MERSEN
Fast-acting bolt-on fuse rated 800 A, 150 V AC and 150 V DC. Part of the A15QS series. Used for overcurrent protection of semiconductor devices in power electronic circuits
Fast-acting bolt-on fuse rated 350 A at 600 V AC, from the A60X Series. Non-indicating design for AC-only overcurrent protection in power electronic circuits such as drives and rectifiers
MERSEN
Fast-acting bolt-on fuse rated 350 A at 600 V AC, from the A60X Series. Non-indicating design for AC-only overcurrent protection in power electronic circuits such as drives and rectifiers
Fast-acting bolt-on fuse rated 125 A, 700 V AC and 700 V DC. Designed for overcurrent protection in power electronic circuits such as drives, inverters, and rectifiers
MERSEN
Fast-acting bolt-on fuse rated 125 A, 700 V AC and 700 V DC. Designed for overcurrent protection in power electronic circuits such as drives, inverters, and rectifiers
Class J blade-body fast-acting fuse rated 80 A at 600 V AC and 300 V DC. Non-indicating design for overcurrent protection in industrial equipment such as motor control centers, panelboards, and branch circuits requiring high-speed interruption
MERSEN
Class J blade-body fast-acting fuse rated 80 A at 600 V AC and 300 V DC. Non-indicating design for overcurrent protection in industrial equipment such as motor control centers, panelboards, and branch circuits requiring high-speed interruption
Fast-acting bolt-on fuse from the A70QS Series, rated 225 A and 700 V AC/DC. Designed for overcurrent protection in power electronic circuits such as drives, inverters, and rectifiers. Features indicating function for blown fuse detection
MERSEN
Fast-acting bolt-on fuse from the A70QS Series, rated 225 A and 700 V AC/DC. Designed for overcurrent protection in power electronic circuits such as drives, inverters, and rectifiers. Features indicating function for blown fuse detection
Fast-acting bolt-on fuse rated 400 A at 500 V AC and 500 V DC. Designed for semiconductor protection in industrial power electronics such as rectifiers, inverters, and drives. Suitable for use in motor control centers and UPS systems
MERSEN
Fast-acting bolt-on fuse rated 400 A at 500 V AC and 500 V DC. Designed for semiconductor protection in industrial power electronics such as rectifiers, inverters, and drives. Suitable for use in motor control centers and UPS systems
Fast-acting bolt-on fuse from the A15QS Series, rated 2 kA at 150 V AC and 150 V DC. Designed for overcurrent protection in power electronic circuits such as drives, inverters, and rectifiers where rapid fault clearing is required
MERSEN
Fast-acting bolt-on fuse from the A15QS Series, rated 2 kA at 150 V AC and 150 V DC. Designed for overcurrent protection in power electronic circuits such as drives, inverters, and rectifiers where rapid fault clearing is required
Fast-acting bolt-on fuse rated 80 A at 700 V AC and 700 V DC. Designed for overcurrent protection of semiconductor devices in industrial power supplies, drives, and converters
MERSEN
Fast-acting bolt-on fuse rated 80 A at 700 V AC and 700 V DC. Designed for overcurrent protection of semiconductor devices in industrial power supplies, drives, and converters