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MERSEN Fuse: Class L, A4BY Series, Bolt-On Body, Time-Delay, 2 kA, 600 V AC - Time-Delay Bolt-On Fuses
MERSENTime-Delay Bolt-On Fuses

MERSEN Fuse: Class L, A4BY Series, Bolt-On Body, Time-Delay, 2 kA, 600 V AC

The MERSEN A4BY Series is a Class L time-delay bolt-on fuse, rated at 2 kA, 600 V AC, and 300 V DC. This MERSEN fuse (MPN A4BY2000) features a bolt-on body design for secure installation in industrial electrical systems.

SKU 3G-OTH-27257

Brand
MERSEN
Item
Fuse: Class L, A4BY Series, Bolt-On Body, Time-Delay, 2 kA, 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
A4BY2000
Series
A4BY
Type
A4BY Series, Bolt-On Body, Time-Delay, 2 kA
AC
600 V
DC
300 V

Technical Documents

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

Product Description

The MERSEN A4BY Series is a Class L time-delay bolt-on fuse, rated at 2 kA, 600 V AC, and 300 V DC. This MERSEN fuse (MPN A4BY2000) features a bolt-on body design for secure installation in industrial electrical systems.

Frequently Asked Questions

What is the MERSEN A4BY2000 fuse used for?

The MERSEN A4BY2000 is a Class L time-delay bolt-on fuse rated at 2 kA, 600 V AC, and 300 V DC. It protects industrial electrical systems against overcurrents and short circuits, commonly used in switchboards, motor control centers, and feeder circuits.

What are the specifications of the MERSEN A4BY2000 fuse?

The MERSEN A4BY2000 is a Class L time-delay bolt-on fuse rated at 2 kA, 600 V AC, and 300 V DC. It features a bolt-on body design for secure installation and is part of the A4BY Series. The manufacturer part number is A4BY2000.

Where to buy the MERSEN A4BY2000 fuse worldwide?

3G Electric supplies the MERSEN A4BY2000 fuse to customers worldwide. 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.

How to install the MERSEN A4BY2000 bolt-on fuse?

Install the MERSEN A4BY2000 by securely bolting it into the fuse holder, ensuring proper torque per manufacturer guidelines. Verify the circuit is de-energized before installation. Always follow NEC and local electrical codes for Class L fuse applications.

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, 1.201 kA, 600 V AC, 300 V DC (MPN A4BY1201)
MERSEN
MERSEN Fuse: Class L, A4BY Series, Bolt-On Body, Time-Delay, 1.201 kA, 600 V AC, 300 V DC (MPN A4BY1201)
MERSEN Fuse: Class L, A4BY Series, Bolt-On Body, Time-Delay, 1.4 kA, 600 V AC, 300 V DC (MPN A4BY1400)
MERSEN
MERSEN Fuse: Class L, A4BY Series, Bolt-On Body, Time-Delay, 1.4 kA, 600 V AC, 300 V DC (MPN A4BY1400)
MERSEN Fuse: Class L, A4BY Series, Bolt-On Body, Time-Delay, 4.5 kA, 600 V AC, 300 V DC (MPN A4BY4500)
MERSEN
MERSEN Fuse: Class L, A4BY Series, Bolt-On Body, Time-Delay, 4.5 kA, 600 V AC, 300 V DC (MPN A4BY4500)
MERSEN Fuse: Class L, A4BY Series, Bolt-On Body, Time-Delay, 600 A, 600 V AC, 300 V DC (MPN A4BY600)
MERSEN
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, 1.35 kA, 600 V AC, 300 V DC (MPN A4BY1350)
MERSEN
MERSEN Fuse: Class L, A4BY Series, Bolt-On Body, Time-Delay, 1.35 kA, 600 V AC, 300 V DC (MPN A4BY1350)
MERSEN Fuse: Class L, A4BY Series, Bolt-On Body, Time-Delay, 1.2 kA, 600 V AC, 300 V DC (MPN A4BY1200)
MERSEN
MERSEN Fuse: Class L, A4BY Series, Bolt-On Body, Time-Delay, 1.2 kA, 600 V AC, 300 V DC (MPN A4BY1200)

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MERSEN Fuse: Class L, A4BY Series, Bolt-On Body, Time-Delay, 1.6 kA, 600 V AC, 300 V DC (MPN A4BY1600)
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MERSEN Fuse: Class L, A4BY Series, Bolt-On Body, Time-Delay, 1.6 kA, 600 V AC, 300 V DC (MPN A4BY1600)
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