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MERSEN Fuse: GSF Series, Time-Delay, 4 A, 250 V AC, Non-Indicating, 5 mm x 20 mm - Time-Delay Cylindrical Fuses
MERSENTime-Delay Cylindrical Fuses

MERSEN Fuse: GSF Series, Time-Delay, 4 A, 250 V AC, Non-Indicating, 5 mm x 20 mm

The MERSEN GSF Series is a time-delay cylindrical fuse rated at 4 A and 250 V AC, with a 5 mm x 20 mm non-indicating body. It is equivalent to the S505, 477, and GSF fuse series, identified by manufacturer part…

SKU 3G-OTH-27165

Brand
MERSEN
Item
Fuse: GSF Series, Time-Delay, 4 A, 250 V AC, Non-Indicating, 5 mm x 20 mm
Category
Time-Delay Cylindrical Fuses
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Technical Specifications

MERSEN
Manufacturer Part Number
GSF4
Series
GSF
Type
Time-Delay, 4 A, Non-Indicating, 5 mm x 20 mm, S505, 477, & GSF
AC
250 V
Equivalent Fuse Series
S505, 477, & GSF
View Full Spec Sheet

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

Product Description

The MERSEN GSF Series is a time-delay cylindrical fuse rated at 4 A and 250 V AC, with a 5 mm x 20 mm non-indicating body. It is equivalent to the S505, 477, and GSF fuse series, identified by manufacturer part number GSF4.

Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.

Frequently Asked Questions

What is the MERSEN GSF4 fuse used for?

The MERSEN GSF4 is a time-delay cylindrical fuse rated at 4 A and 250 V AC, used for overcurrent protection in industrial control panels, power supplies, and equipment requiring a 5 mm x 20 mm non-indicating fuse. Its time-delay characteristic handles inrush currents without nuisance tripping.

What are the specifications of the MERSEN GSF4 fuse?

The MERSEN GSF Series fuse (MPN GSF4) is rated at 4 A and 250 V AC, with a time-delay, non-indicating, 5 mm x 20 mm cylindrical body. It is equivalent to the S505, 477, and GSF fuse series. The MERSEN brand ensures reliable overcurrent protection for industrial applications.

Where to buy MERSEN GSF4 fuses worldwide?

3G Electric supplies MERSEN GSF4 fuses worldwide. As a global industrial equipment distributor since 1990, we handle full logistics, customs clearance, and delivery to your site. Contact us to source the GSF4 or equivalent S505, 477, and GSF series fuses for your project.

How to select the correct MERSEN GSF4 fuse for my application?

To select the correct MERSEN GSF4 fuse, verify your circuit voltage does not exceed 250 V AC and the continuous current is 4 A or less. The time-delay feature suits loads with high inrush current, such as motors or transformers. Ensure the 5 mm x 20 mm holder matches the fuse dimensions.

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 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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