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MERSEN Fuse: Class L, A4BQ Series, Bolt-On Body, Time-Delay, 400 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, 400 A, 600 V AC

The MERSEN A4BQ Series Class L Time-Delay Bolt-On Fuse (MPN A4BQ400) is a 400 A, 600 V AC, 500 V DC industrial fuse with a bolt-on body. It provides time-delay overload protection for high-current circuits.

SKU 3G-OTH-27718

Brand
MERSEN
Item
Fuse: Class L, A4BQ Series, Bolt-On Body, Time-Delay, 400 A, 600 V AC
Category
Time-Delay Bolt-On Fuses
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Technical Specifications

MERSEN
Manufacturer Part Number
A4BQ400
Series
A4BQ
Type
A4BQ Series, Bolt-On Body, Time-Delay, 400 A
AC
600 V
DC
500 V
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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 A4BQ400) is a 400 A, 600 V AC, 500 V DC industrial fuse with a bolt-on body. It provides time-delay overload protection for high-current circuits.

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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