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MERSEN Fuse: Class L, A4BY Series, Bolt-On Body, Time-Delay, 1.8 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, 1.8 kA, 600 V AC

The MERSEN A4BY1800 is a Class L, time-delay bolt-on fuse from the A4BY Series. It is rated for 1.8 kA at 600 V AC and 300 V DC. This MERSEN fuse features a bolt-on body design for secure installation.

SKU 3G-OTH-27231

Brand
MERSEN
Item
Fuse: Class L, A4BY Series, Bolt-On Body, Time-Delay, 1.8 kA, 600 V AC
Category
Time-Delay Bolt-On Fuses
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Technical Specifications

MERSEN
Manufacturer Part Number
A4BY1800
Series
A4BY
Type
A4BY Series, Bolt-On Body, Time-Delay, 1.8 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 A4BY1800 is a Class L, time-delay bolt-on fuse from the A4BY Series. It is rated for 1.8 kA at 600 V AC and 300 V DC. This MERSEN fuse features a bolt-on body design for secure installation.

Frequently Asked Questions

What is the MERSEN A4BY1800 fuse used for?

The MERSEN A4BY1800 is a Class L time-delay bolt-on fuse used for overcurrent protection in industrial power distribution, motor circuits, and feeder applications. Its 1.8 kA rating at 600 V AC and 300 V DC makes it suitable for high-current systems requiring reliable short-circuit and overload protection.

What are the specifications of the MERSEN A4BY1800 fuse?

The MERSEN A4BY1800 is a Class L, time-delay bolt-on fuse from the A4BY Series. It is rated for 1.8 kA at 600 V AC and 300 V DC. The bolt-on body design ensures secure installation in fuse holders or disconnects. The manufacturer part number is A4BY1800.

Where to buy the MERSEN A4BY1800 fuse worldwide?

3G Electric supplies the MERSEN A4BY1800 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. We source and deliver this MERSEN A4BY Series fuse to support your industrial needs.

How to install the MERSEN A4BY1800 bolt-on fuse?

To install the MERSEN A4BY1800, ensure the circuit is de-energized. Align the bolt-on body with the fuse holder or disconnect terminals and tighten the mounting bolts securely to the specified torque. Verify the fuse rating matches the circuit requirements. Follow all applicable safety codes and manufacturer guidelines for proper installation.

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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Cross-referenced by specification & description
MERSEN Fuse: Class L, A4BY Series, Bolt-On Body, Time-Delay, 1.4 kA, 600 V AC, 300 V DC (MPN A4BY1400)
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MERSEN Fuse: Class L, A4BY Series, Bolt-On Body, Time-Delay, 1.4 kA, 600 V AC, 300 V DC (MPN A4BY1400)
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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)
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MERSEN Fuse: Class L, A4BY Series, Bolt-On Body, Time-Delay, 1.35 kA, 600 V AC, 300 V DC (MPN A4BY1350)
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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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