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

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

SKU 3G-OTH-27296

Also listed as: GSF 5 · GSF-5

Brand
MERSEN
Item
Fuse: GSF Series, Time-Delay, 5 A, 250 V AC, Non-Indicating, 5 mm x 20 mm
Category
Time-Delay Cylindrical Fuses
Available to Order
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

MERSEN
Manufacturer Part Number
GSF5
Series
GSF
Type
Time-Delay, 5 A, Non-Indicating, 5 mm x 20 mm, S505, 477, & GSF
AC
250 V
Equivalent Fuse Series
S505, 477, & GSF

Technical Documents

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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 5 A and 250 V AC, with a non-indicating 5 mm x 20 mm body. It is equivalent to the S505, 477, and GSF fuse series, identified by manufacturer part number GSF5.

Frequently Asked Questions

What is the MERSEN GSF5 fuse used for?

The MERSEN GSF5 is a time-delay cylindrical fuse used to protect electrical circuits from overcurrents in industrial equipment, power supplies, and control panels. Its 5 A, 250 V AC rating and 5 mm x 20 mm body make it suitable for applications requiring delayed response to transient surges.

What are the specifications of the MERSEN GSF5 fuse?

The MERSEN GSF5 is a 5 A, 250 V AC time-delay fuse with a non-indicating 5 mm x 20 mm cylindrical body. It belongs to the GSF series and is equivalent to the S505, 477, and GSF fuse series. The manufacturer part number is GSF5.

Where to buy MERSEN GSF5 fuses worldwide?

You can source MERSEN GSF5 fuses through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead times on this and other MERSEN fuse series.

How to select the correct MERSEN GSF5 fuse for an application?

To select the MERSEN GSF5, verify your circuit's voltage (250 V AC max) and current rating (5 A). Ensure the 5 mm x 20 mm body fits your fuse holder. The time-delay characteristic is ideal for loads with inrush currents, such as motors or transformers. Always consult the equipment manual.

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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Compatible alternatives & equivalents

Cross-referenced by specification & description
MERSEN Fuse: GSF Series, Time-Delay, 2 A, 250 V AC, Non-Indicating, 5 mm x 20 mm, S505, 477, & GSF (MPN GSF2)
MERSEN
MERSEN Fuse: GSF Series, Time-Delay, 2 A, 250 V AC, Non-Indicating, 5 mm x 20 mm, S505, 477, & GSF (MPN GSF2)
MERSEN Fuse: GSF Series, Time-Delay, 4 A, 250 V AC, Non-Indicating, 5 mm x 20 mm, S505, 477, & GSF (MPN GSF4)
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MERSEN Fuse: GSF Series, Time-Delay, 4 A, 250 V AC, Non-Indicating, 5 mm x 20 mm, S505, 477, & GSF (MPN GSF4)
MERSEN Fuse: GSF Series, Time-Delay, 6.3 A, 250 V AC, Non-Indicating, 5 mm x 20 mm, S505, 477, & GSF (MPN GSF6-3/10)
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MERSEN Fuse: GSF Series, Time-Delay, 6.3 A, 250 V AC, Non-Indicating, 5 mm x 20 mm, S505, 477, & GSF (MPN GSF6-3/10)
MERSEN Fuse: GSF Series, Time-Delay, 8 A, 250 V AC, Non-Indicating, 5 mm x 20 mm, S505, 477, & GSF (MPN GSF8)
MERSEN
MERSEN Fuse: GSF Series, Time-Delay, 8 A, 250 V AC, Non-Indicating, 5 mm x 20 mm, S505, 477, & GSF (MPN GSF8)
MERSEN Fuse: GSF Series, Time-Delay, 1 A, 250 V AC, Non-Indicating, 5 mm x 20 mm, S505, 477, & GSF (MPN GSF1)
MERSEN
MERSEN Fuse: GSF Series, Time-Delay, 1 A, 250 V AC, Non-Indicating, 5 mm x 20 mm, S505, 477, & GSF (MPN GSF1)
MERSEN Fuse: GSF Series, Time-Delay, 800 mA, 250 V AC, Non-Indicating, 5 mm x 20 mm (MPN GSF8/10)
MERSEN
MERSEN Fuse: GSF Series, Time-Delay, 800 mA, 250 V AC, Non-Indicating, 5 mm x 20 mm (MPN GSF8/10)

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