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MERSEN GSB1-1/4 Fast-Acting Cylindrical Fuse, 1.25 A, 250 V AC, 5.1 mm x 20.1 mm - Fast-Acting Cylindrical Fuses
MERSENFast-Acting Cylindrical Fuses

MERSEN GSB1-1/4 Fast-Acting Cylindrical Fuse, 1.25 A, 250 V AC, 5.1 mm x 20.1 mm

The MERSEN GSB Series Fast-Acting Cylindrical Fuse (MPN GSB1-1/4) is a 1.25 A, 250 V AC rated fuse with a 5.1 mm x 20.1 mm physical size. This fast-acting fuse from MERSEN is designed for overcurrent protection in…

SKU 3G-OTH-153020

Also listed as: GSB114 · GSB1 1 4 · GSB1-1-4

Brand
MERSEN
Item
GSB1-1/4 Fast-Acting Cylindrical Fuse, 1.25 A, 250 V AC, 5.1 mm x 20.1 mm
Category
Fast-Acting Cylindrical Fuses
Available to Order
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Local availability & support — the Philippines

Delivery
5–8 business days door-to-door; Bureau of Customs clearance typically 2–4 business days.
Payment
Invoicing in PHP or USD. Bank transfer and corporate PO accepted.
Ships to
Manila, Quezon City, Cebu, Davao, Batangas

Technical Specifications

MERSEN
Manufacturer Part Number
GSB1-1/4

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

Product Description

The MERSEN GSB Series Fast-Acting Cylindrical Fuse (MPN GSB1-1/4) is a 1.25 A, 250 V AC rated fuse with a 5.1 mm x 20.1 mm physical size. This fast-acting fuse from MERSEN is designed for overcurrent protection in industrial equipment.

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 GSB1-1/4 fuse used for?

The MERSEN GSB1-1/4 fast-acting fuse protects industrial equipment from overcurrent damage. It is commonly applied in control panels, power supplies, and instrumentation circuits where rapid response to short circuits is critical to safeguard sensitive components.

What are the specifications of the MERSEN GSB1-1/4 fuse?

The MERSEN GSB1-1/4 is a 1.25 A, 250 V AC fast-acting cylindrical fuse. It has a physical size of 5.1 mm x 20.1 mm and belongs to the GSB Series. This fuse is designed for overcurrent protection in industrial applications.

Where to buy the MERSEN GSB1-1/4 fuse worldwide?

3G Electric supplies the MERSEN GSB1-1/4 fuse worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your facility. Contact us for pricing and lead time on this fast-acting fuse.

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

To select the correct MERSEN GSB fuse, match the voltage rating (250 V AC) and current rating (1.25 A) to your circuit requirements. Ensure the physical size (5.1 mm x 20.1 mm) fits your fuse holder. For overcurrent protection, verify the fast-acting characteristic suits your equipment's inrush tolerance.

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
Fast-acting cylindrical fuse rated 1 A, 250 V AC, with dimensions 5.1 mm x 20.1 mm. Provides overcurrent protection in industrial equipment such as control panels, power supplies, and instrumentation circuits
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Fast-acting cylindrical fuse rated 1 A, 250 V AC, with dimensions 5.1 mm x 20.1 mm. Provides overcurrent protection in industrial equipment such as control panels, power supplies, and instrumentation circuits
Fast-acting cylindrical fuse rated 1.6 A, 250 V AC, with dimensions 5.1 mm x 20.1 mm. Provides overcurrent protection in industrial equipment such as control panels, power supplies, and machinery where rapid response to short circuits is required
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Fast-acting cylindrical fuse rated 1.6 A, 250 V AC, with dimensions 5.1 mm x 20.1 mm. Provides overcurrent protection in industrial equipment such as control panels, power supplies, and machinery where rapid response to short circuits is required
Fast-acting cylindrical fuse rated 2.5 A, 250 V AC, with physical dimensions 5.1 mm x 20.1 mm. Provides overcurrent protection in industrial equipment such as control panels, power supplies, and machinery
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Fast-acting cylindrical fuse rated 2.5 A, 250 V AC, with physical dimensions 5.1 mm x 20.1 mm. Provides overcurrent protection in industrial equipment such as control panels, power supplies, and machinery
Fast-acting cylindrical fuse rated 500 mA, 250 V AC, with dimensions 5.1 mm x 20.1 mm. Provides overcurrent protection in industrial equipment such as control panels, power supplies, and electronic circuits requiring rapid response to fault currents
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Fast-acting cylindrical fuse rated 500 mA, 250 V AC, with dimensions 5.1 mm x 20.1 mm. Provides overcurrent protection in industrial equipment such as control panels, power supplies, and electronic circuits requiring rapid response to fault currents
The MERSEN GSB2 is a fast-acting cylindrical fuse rated at 2 A and 250 V AC. With dimensions of 5.1 mm x 20.1 mm, it provides overcurrent protection in industrial equipment such as control panels, power supplies, and electronic circuits where rapid response to short circuits is required
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The MERSEN GSB2 is a fast-acting cylindrical fuse rated at 2 A and 250 V AC. With dimensions of 5.1 mm x 20.1 mm, it provides overcurrent protection in industrial equipment such as control panels, power supplies, and electronic circuits where rapid response to short circuits is required
Fast-acting cylindrical fuse rated 10 A at 250 V AC. Dimensions 5.1 mm x 20.1 mm. Provides overcurrent protection in industrial equipment such as control panels, power supplies, and electronic circuits
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Fast-acting cylindrical fuse rated 10 A at 250 V AC. Dimensions 5.1 mm x 20.1 mm. Provides overcurrent protection in industrial equipment such as control panels, power supplies, and electronic circuits

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Fast-acting cylindrical fuse rated 2 A at 250 V AC. Non-indicating design with 5 mm x 20 mm body. Suitable for overcurrent protection in control panels, power supplies, and instrumentation. Equivalent to GDA, S501, and 216 series
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Fast-acting cylindrical fuse rated 2 A at 250 V AC. Non-indicating design with 5 mm x 20 mm body. Suitable for overcurrent protection in control panels, power supplies, and instrumentation. Equivalent to GDA, S501, and 216 series
Fast-acting cylindrical fuse rated 15 A at 1.5 kV DC. Part of the HP15MxxR series. Used for overcurrent protection in photovoltaic systems, including solar panel circuits and combiner boxes
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Fast-acting cylindrical fuse rated 15 A at 1.5 kV DC. Part of the HP15MxxR series. Used for overcurrent protection in photovoltaic systems, including solar panel circuits and combiner boxes
Fast-acting midget fuse rated 600 mA at 600 V AC. Non-indicating design with dimensions 13/32 in x 1 3/8 in. Used for overcurrent protection in control panels, instrumentation, and power supplies where rapid response to faults is required
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Fast-acting midget fuse rated 600 mA at 600 V AC. Non-indicating design with dimensions 13/32 in x 1 3/8 in. Used for overcurrent protection in control panels, instrumentation, and power supplies where rapid response to faults is required
Fast-acting cylindrical fuse from the HP15P Series, rated 40 A and 1.5 kV DC. Designed for overcurrent protection in photovoltaic systems, including solar panel strings and combiner boxes
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Fast-acting cylindrical fuse from the HP15P Series, rated 40 A and 1.5 kV DC. Designed for overcurrent protection in photovoltaic systems, including solar panel strings and combiner boxes
Fast-acting cylindrical fuse rated 2 A at 250 V AC, with dimensions 5.1 mm x 20.1 mm. Provides overcurrent protection in control panels, power supplies, and industrial machinery
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Fast-acting cylindrical fuse rated 2 A at 250 V AC, with dimensions 5.1 mm x 20.1 mm. Provides overcurrent protection in control panels, power supplies, and industrial machinery
The MERSEN RF15 is a Class H fast-acting cylindrical fuse rated 15 A at 250 V AC. It is non-indicating, meaning it does not provide a visual blown indication. This fuse is used for overcurrent protection in industrial electrical circuits, such as control panels and distribution equipment, where rapid response to short circuits is required
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The MERSEN RF15 is a Class H fast-acting cylindrical fuse rated 15 A at 250 V AC. It is non-indicating, meaning it does not provide a visual blown indication. This fuse is used for overcurrent protection in industrial electrical circuits, such as control panels and distribution equipment, where rapid response to short circuits is required
Fast-acting cylindrical fuse rated 12 A and 1000 V DC with AC/DC voltage compatibility. Provides overcurrent protection in DC circuits such as solar photovoltaic systems, combiner boxes, and inverters
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Fast-acting cylindrical fuse rated 12 A and 1000 V DC with AC/DC voltage compatibility. Provides overcurrent protection in DC circuits such as solar photovoltaic systems, combiner boxes, and inverters
Fast-acting midget fuse rated 500 mA, 600 V AC and 600 V DC. Measures 13/32 in x 1 1/2 in. Used for overcurrent protection in control panels, instrumentation, and power supplies where rapid interruption is required
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Fast-acting midget fuse rated 500 mA, 600 V AC and 600 V DC. Measures 13/32 in x 1 1/2 in. Used for overcurrent protection in control panels, instrumentation, and power supplies where rapid interruption is required