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MERSEN Fuse: Class L, A4BQ Series, Bolt-On Body, Time-Delay, 500 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, 500 A, 600 V AC

The MERSEN A4BQ Series Class L Time-Delay Bolt-On Fuse (MPN A4BQ500) is a 500 A, 600 V AC, 500 V DC industrial fuse. It features a bolt-on body design for secure mounting in high-current applications.

SKU 3G-OTH-27011

Brand
MERSEN
Item
Fuse: Class L, A4BQ Series, Bolt-On Body, Time-Delay, 500 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
A4BQ500
Series
A4BQ
Type
A4BQ Series, Bolt-On Body, Time-Delay, 500 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 A4BQ Series Class L Time-Delay Bolt-On Fuse (MPN A4BQ500) is a 500 A, 600 V AC, 500 V DC industrial fuse. It features a bolt-on body design for secure mounting in high-current applications.

Frequently Asked Questions

What is the MERSEN A4BQ500 fuse used for?

The MERSEN A4BQ500 is a Class L time-delay bolt-on fuse rated 500 A, 600 V AC, and 500 V DC. It is used for high-current industrial overcurrent protection in switchboards, panelboards, and motor control centers where secure bolt-on mounting is required.

What are the specifications of the MERSEN A4BQ500 fuse?

The MERSEN A4BQ500 is a Class L, A4BQ Series, time-delay bolt-on fuse rated 500 A, 600 V AC, and 500 V DC. It features a bolt-on body design for secure mounting. The manufacturer part number is A4BQ500.

Where to buy MERSEN A4BQ500 fuses worldwide?

3G Electric supplies the MERSEN A4BQ500 fuse worldwide. As a global industrial equipment distributor, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time.

How to select the correct MERSEN A4BQ500 fuse for an application?

To select the MERSEN A4BQ500, verify your system voltage does not exceed 600 V AC or 500 V DC, and the continuous current does not exceed 500 A. Ensure the bolt-on mounting matches your fuse holder. Consult a qualified engineer for coordination studies.

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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MERSEN Fuse: Class L, A4BQ Series, Bolt-On Body, Time-Delay, 400 A, 600 V AC, 500 V DC (MPN A4BQ400)
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MERSEN Fuse: Class L, A4BQ Series, Bolt-On Body, Time-Delay, 601 A, 600 V AC, 500 V DC (MPN A4BQ601)
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