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MERSEN Fuse: Class L, A4BQ Series, Bolt-On Body, Time-Delay, 450 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, 450 A, 600 V AC

The MERSEN A4BQ450 is a Class L, time-delay bolt-on fuse from the A4BQ Series. It is rated for 450 A at 600 V AC and 500 V DC, with a bolt-on body design.

SKU 3G-OTH-26610

Brand
MERSEN
Item
Fuse: Class L, A4BQ Series, Bolt-On Body, Time-Delay, 450 A, 600 V AC
Category
Time-Delay Bolt-On Fuses
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Technical Specifications

MERSEN
Manufacturer Part Number
A4BQ450
Series
A4BQ
Type
A4BQ Series, Bolt-On Body, Time-Delay, 450 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 A4BQ450 is a Class L, time-delay bolt-on fuse from the A4BQ Series. It is rated for 450 A at 600 V AC and 500 V DC, with a bolt-on body design.

Frequently Asked Questions

What is the MERSEN A4BQ450 fuse used for?

The MERSEN A4BQ450 is a Class L time-delay bolt-on fuse used for overcurrent protection in industrial power distribution, motor circuits, and feeder applications. Its 450 A rating at 600 V AC and 500 V DC makes it suitable for high-current equipment and DC bus protection.

What are the specifications of the MERSEN A4BQ450?

The MERSEN A4BQ450 is a Class L, time-delay bolt-on fuse from the A4BQ Series. It is rated for 450 A at 600 V AC and 500 V DC, with a bolt-on body design. The manufacturer part number is A4BQ450.

Where to buy the MERSEN A4BQ450 worldwide?

3G Electric supplies the MERSEN A4BQ450 worldwide. As a global industrial 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 A4BQ450 fuse?

To select the correct MERSEN A4BQ450 fuse, verify your system voltage (600 V AC or 500 V DC) and continuous current (450 A). Ensure the bolt-on body matches your fuse holder. For time-delay applications, confirm the inrush current duration does not exceed the fuse's time-current curve.

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, 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, 400 A, 600 V AC, 500 V DC (MPN A4BQ400)
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)
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, 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, 601 A, 600 V AC, 500 V DC (MPN A4BQ601)
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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)
MERSEN Fuse: Class L, A4BQ Series, Bolt-On Body, Time-Delay, 650 A, 600 V AC, 500 V DC (MPN A4BQ650)
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MERSEN Fuse: Class L, A4BQ Series, Bolt-On Body, Time-Delay, 650 A, 600 V AC, 500 V DC (MPN A4BQ650)

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