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MERSEN Fuse: Class L, A4BQ Series, Bolt-On Body, Time-Delay, 750 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, 750 A, 600 V AC

The MERSEN A4BQ750 is a Class L time-delay bolt-on fuse from the A4BQ Series, rated at 750 A, 600 V AC, and 500 V DC. This bolt-on body fuse is designed for overcurrent protection in industrial electrical systems.

SKU 3G-OTH-27918

Brand
MERSEN
Item
Fuse: Class L, A4BQ Series, Bolt-On Body, Time-Delay, 750 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
A4BQ750
Series
A4BQ
Type
A4BQ Series, Bolt-On Body, Time-Delay, 750 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 A4BQ750 is a Class L time-delay bolt-on fuse from the A4BQ Series, rated at 750 A, 600 V AC, and 500 V DC. This bolt-on body fuse is designed for overcurrent protection in industrial electrical systems.

Frequently Asked Questions

What is the MERSEN A4BQ750 fuse used for?

The MERSEN A4BQ750 is a Class L time-delay bolt-on fuse rated 750 A, 600 V AC, and 500 V DC. It provides overcurrent protection in industrial electrical systems, such as motor circuits, feeders, and switchboards, where high interrupting capacity and delayed response to inrush currents are required.

What are the specifications of the MERSEN A4BQ750 fuse?

The MERSEN A4BQ750 is a Class L, A4BQ Series, bolt-on body, time-delay fuse. Its ratings are 750 A, 600 V AC, and 500 V DC. The manufacturer part number is A4BQ750. It is designed for overcurrent protection in demanding industrial applications.

Where to buy the MERSEN A4BQ750 fuse worldwide?

3G Electric supplies the MERSEN A4BQ750 fuse to customers worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your location. Contact us for a quote and lead time on this Class L time-delay bolt-on fuse.

How to select the correct MERSEN A4BQ750 fuse for an application?

To select the MERSEN A4BQ750, verify your system voltage (600 V AC or 500 V DC) and continuous current (750 A). Ensure the fuse's time-delay characteristic matches your inrush requirements, such as motor starting. Always consult the manufacturer's data sheet for coordination and interrupting rating details.

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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Cross-referenced by specification & description
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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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