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MERSEN Fuse: Class L, A4BQ Series, Bolt-On Body, Time-Delay, 601 A, 600 V AC - Time-Delay Bolt-On Fuses
MERSENTime-Delay Bolt-On Fuses

MERSEN Fuse: Class L, A4BQ Series, Bolt-On Body, Time-Delay, 601 A, 600 V AC

The MERSEN A4BQ601 is a Class L time-delay bolt-on fuse from the A4BQ Series, rated at 601 A, 600 V AC, and 500 V DC. This industrial fuse is designed for overcurrent protection in high-current electrical systems.

SKU 3G-OTH-27913

Brand
MERSEN
Item
Fuse: Class L, A4BQ Series, Bolt-On Body, Time-Delay, 601 A, 600 V AC
Category
Time-Delay Bolt-On Fuses
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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
A4BQ601
Series
A4BQ
Type
A4BQ Series, Bolt-On Body, Time-Delay, 601 A
AC
600 V
DC
500 V

Technical Documents

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

Product Description

The MERSEN A4BQ601 is a Class L time-delay bolt-on fuse from the A4BQ Series, rated at 601 A, 600 V AC, and 500 V DC. This industrial fuse is designed for overcurrent protection in high-current electrical systems.

Frequently Asked Questions

What is the MERSEN A4BQ601 fuse used for?

The MERSEN A4BQ601 is a Class L time-delay bolt-on fuse used for overcurrent protection in high-current electrical systems. It is rated at 601 A, 600 V AC, and 500 V DC, making it suitable for industrial power distribution, switchgear, and motor circuits requiring reliable fault isolation.

What are the specifications of the MERSEN A4BQ601?

The MERSEN A4BQ601 is a Class L time-delay bolt-on fuse from the A4BQ Series. It has a current rating of 601 A, voltage rating of 600 V AC and 500 V DC, and features a bolt-on body design. The manufacturer part number is A4BQ601, and it is built for high-current overcurrent protection.

Where to buy the MERSEN A4BQ601 worldwide?

You can source the MERSEN A4BQ601 fuse 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; we supply genuine MERSEN components for industrial applications.

How to select the correct MERSEN A4BQ601 fuse for an application?

To select the MERSEN A4BQ601, verify your system's voltage (600 V AC or 500 V DC) and continuous current (601 A). Ensure the fuse holder accepts a Class L bolt-on body. Consider time-delay characteristics for motor or transformer inrush. Consult MERSEN application guides for coordination with upstream protection devices.

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 time-delay 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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Compatible alternatives & equivalents

Cross-referenced by specification & description
MERSEN Fuse: Class L, A4BQ Series, Bolt-On Body, Time-Delay, 600 A, 600 V AC, 500 V DC (MPN A4BQ600)
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MERSEN Fuse: Class L, A4BQ Series, Bolt-On Body, Time-Delay, 600 A, 600 V AC, 500 V DC (MPN A4BQ600)
MERSEN Fuse: Class L, A4BQ Series, Bolt-On Body, Time-Delay, 500 A, 600 V AC, 500 V DC (MPN A4BQ500)
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MERSEN Fuse: Class L, A4BQ Series, Bolt-On Body, Time-Delay, 500 A, 600 V AC, 500 V DC (MPN A4BQ500)
MERSEN Fuse: Class L, A4BQ Series, Bolt-On Body, Time-Delay, 350 A, 600 V AC, 500 V DC (MPN A4BQ350)
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MERSEN Fuse: Class L, A4BQ Series, Bolt-On Body, Time-Delay, 350 A, 600 V AC, 500 V DC (MPN A4BQ350)
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MERSEN Fuse: Class L, A4BQ Series, Bolt-On Body, Time-Delay, 400 A, 600 V AC, 500 V DC (MPN A4BQ400)
MERSEN Fuse: Class L, A4BQ Series, Bolt-On Body, Time-Delay, 450 A, 600 V AC, 500 V DC (MPN A4BQ450)
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MERSEN Fuse: Class L, A4BQ Series, Bolt-On Body, Time-Delay, 450 A, 600 V AC, 500 V DC (MPN A4BQ450)
MERSEN Fuse: Class L, A4BQ Series, Bolt-On Body, Time-Delay, 6,000 A, 600 V AC, 500 V DC (MPN A4BQ6000)
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MERSEN Fuse: Class L, A4BQ Series, Bolt-On Body, Time-Delay, 6,000 A, 600 V AC, 500 V DC (MPN A4BQ6000)

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