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MERSEN Fuse: Class L, A4BY 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, A4BY Series, Bolt-On Body, Time-Delay, 500 A, 600 V AC

The MERSEN A4BY Series Class L Time-Delay Bolt-On Fuse (MPN A4BY500) is a 500 A, 600 V AC, 300 V DC industrial fuse with a bolt-on body. This time-delay fuse is designed for overcurrent protection in electrical…

SKU 3G-OTH-27124

Brand
MERSEN
Item
Fuse: Class L, A4BY Series, Bolt-On Body, Time-Delay, 500 A, 600 V AC
Category
Time-Delay Bolt-On Fuses
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Payment
Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

MERSEN
Manufacturer Part Number
A4BY500
Series
A4BY
Type
A4BY Series, Bolt-On Body, Time-Delay, 500 A
AC
600 V
DC
300 V

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

Product Description

The MERSEN A4BY Series Class L Time-Delay Bolt-On Fuse (MPN A4BY500) is a 500 A, 600 V AC, 300 V DC industrial fuse with a bolt-on body. This time-delay fuse is designed for overcurrent protection in electrical distribution systems.

Frequently Asked Questions

What is the MERSEN A4BY500 fuse used for?

The MERSEN A4BY500 is a 500 A, 600 V AC, 300 V DC Class L time-delay bolt-on fuse used for overcurrent protection in industrial electrical distribution systems. It handles high inrush currents, making it suitable for motor circuits, transformers, and main feeders in manufacturing and process plants.

What are the specifications of the MERSEN A4BY500 fuse?

The MERSEN A4BY500 is a Class L time-delay bolt-on fuse rated 500 A, 600 V AC, and 300 V DC. It is part of the A4BY Series with a bolt-on body. This fuse provides overcurrent protection in electrical distribution systems and is designed for high-current industrial applications.

Where to buy the MERSEN A4BY500 fuse worldwide?

3G Electric supplies the MERSEN A4BY500 fuse worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your site. Contact us for pricing and lead time on this Class L time-delay bolt-on fuse for your electrical distribution needs.

How to select the correct MERSEN A4BY500 fuse for an application?

To select the MERSEN A4BY500, verify your system voltage (600 V AC or 300 V DC) and continuous current (500 A). Ensure the bolt-on body matches your fuse holder. For time-delay applications like motor starting, confirm the inrush current duration. 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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Compatible alternatives & equivalents

Cross-referenced by specification & description
MERSEN Fuse: Class L, A4BY Series, Bolt-On Body, Time-Delay, 350 A, 600 V AC, 300 V DC (MPN A4BY350)
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MERSEN Fuse: Class L, A4BY Series, Bolt-On Body, Time-Delay, 350 A, 600 V AC, 300 V DC (MPN A4BY350)
MERSEN Fuse: Class L, A4BY Series, Bolt-On Body, Time-Delay, 300 A, 600 V AC, 300 V DC (MPN A4BY300)
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MERSEN Fuse: Class L, A4BY Series, Bolt-On Body, Time-Delay, 300 A, 600 V AC, 300 V DC (MPN A4BY300)
MERSEN Fuse: Class L, A4BY Series, Bolt-On Body, Time-Delay, 4,001 A, 600 V AC, 300 V DC (MPN A4BY4001)
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MERSEN Fuse: Class L, A4BY Series, Bolt-On Body, Time-Delay, 4,001 A, 600 V AC, 300 V DC (MPN A4BY4001)
MERSEN Fuse: Class L, A4BY Series, Bolt-On Body, Time-Delay, 600 A, 600 V AC, 300 V DC (MPN A4BY600)
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MERSEN Fuse: Class L, A4BY Series, Bolt-On Body, Time-Delay, 600 A, 600 V AC, 300 V DC (MPN A4BY600)
MERSEN Fuse: Class L, A4BY Series, Bolt-On Body, Time-Delay, 200 A, 600 V AC, 300 V DC (MPN A4BY200)
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MERSEN Fuse: Class L, A4BY Series, Bolt-On Body, Time-Delay, 200 A, 600 V AC, 300 V DC (MPN A4BY200)
MERSEN Fuse: Class L, A4BY Series, Bolt-On Body, Time-Delay, 250 A, 600 V AC, 300 V DC (MPN A4BY250)
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MERSEN Fuse: Class L, A4BY Series, Bolt-On Body, Time-Delay, 250 A, 600 V AC, 300 V DC (MPN A4BY250)

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