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MERSEN Fuse: GSB Series, Fast-Acting, 4 A, 250 V AC - Fast-Acting Cylindrical Fuses
MERSENFast-Acting Cylindrical Fuses

MERSEN Fuse: GSB Series, Fast-Acting, 4 A, 250 V AC

The MERSEN GSB Series Fast-Acting Cylindrical Fuse (MPN GSB4) is a 4 A, 250 V AC fuse with a 5.1 mm x 20.1 mm form factor. This fast-acting fuse from MERSEN is designed for overcurrent protection in industrial equipment.

SKU 3G-OTH-153000

Also listed as: GSB 4 · GSB-4

Brand
MERSEN
Item
Fuse: GSB Series, Fast-Acting, 4 A, 250 V AC
Category
Fast-Acting Cylindrical Fuses
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Technical Specifications

MERSEN
Manufacturer Part Number
GSB4

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

Product Description

The MERSEN GSB Series Fast-Acting Cylindrical Fuse (MPN GSB4) is a 4 A, 250 V AC fuse with a 5.1 mm x 20.1 mm form factor. This fast-acting fuse from MERSEN is designed for overcurrent protection in industrial equipment.

Frequently Asked Questions

What is the MERSEN GSB4 fuse used for?

The MERSEN GSB4 fast-acting fuse provides overcurrent protection in industrial equipment. It is commonly used in control panels, power supplies, and machinery where a 4 A, 250 V AC rating is required. Its 5.1 mm x 20.1 mm cylindrical form factor fits standard fuse holders.

What are the specifications of the MERSEN GSB4 fuse?

The MERSEN GSB4 is a fast-acting cylindrical fuse rated at 4 A and 250 V AC. It has a 5.1 mm x 20.1 mm body size and is part of the GSB Series. The manufacturer part number is GSB4. It is designed for overcurrent protection in industrial applications.

Where to buy MERSEN GSB4 fuses worldwide?

3G Electric supplies the MERSEN GSB4 fuse worldwide. As a global industrial equipment distributor, we handle full logistics, customs clearance, and delivery to your location. Contact us to source this fast-acting fuse for your industrial overcurrent protection needs.

How to select the right MERSEN GSB fuse for my application?

Select the MERSEN GSB fuse based on your circuit's voltage (250 V AC maximum) and current rating. The GSB4 is rated for 4 A. Ensure the fuse holder accommodates the 5.1 mm x 20.1 mm cylindrical size. For fast-acting protection, match the fuse's interrupting rating to your system's fault current.

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 fast-acting cylindrical 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
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MERSEN Fuse: GSB Series, Fast-Acting, 1.25 A, 250 V AC, 5.1 mm x 20.1 mm (MPN GSB1-1/4)
MERSEN Fuse: GSB Series, Fast-Acting, 800 mA, 250 V AC, 5.1 mm x 20.1 mm (MPN GSB8/10)
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