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MERSEN Fuse: SMF Series, Time-Delay, 1.25 A - Time-Delay Fuses with Integrated Insulating Caps
MERSENTime-Delay Fuses with Integrated Insulating Caps

MERSEN Fuse: SMF Series, Time-Delay, 1.25 A

The MERSEN SMF Series Time-Delay Fuse (MPN SMF1-1/4) is a cylindrical time-delay fuse rated at 1.25 A and 300 V AC. It features an integrated insulating cap for enhanced safety in overcurrent protection applications.

SKU 3G-OTH-23944

Also listed as: SMF114 · SMF1 1 4 · SMF1-1-4

Brand
MERSEN
Item
Fuse: SMF Series, Time-Delay, 1.25 A
Category
Time-Delay Fuses with Integrated Insulating Caps
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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
SMF1-1/4
Series
SMF
Body Style
Cylindrical

Technical Documents

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

Product Description

The MERSEN SMF Series Time-Delay Fuse (MPN SMF1-1/4) is a cylindrical time-delay fuse rated at 1.25 A and 300 V AC. It features an integrated insulating cap for enhanced safety in overcurrent protection applications.

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 SMF Series time-delay fuse used for?

The MERSEN SMF Series time-delay fuse (MPN SMF1-1/4) provides overcurrent protection in industrial control panels, HVAC equipment, and motor circuits. Its integrated insulating cap enhances safety during installation and maintenance. Rated at 1.25 A and 300 V AC, it handles temporary inrush currents without nuisance tripping.

What are the specifications of the MERSEN SMF1-1/4 fuse?

The MERSEN SMF1-1/4 is a cylindrical time-delay fuse rated at 1.25 A and 300 V AC. It belongs to the SMF series and features an integrated insulating cap for added safety. The body style is cylindrical, and the manufacturer part number is SMF1-1/4. These specs ensure reliable overcurrent protection in industrial applications.

Where to buy MERSEN SMF1-1/4 fuses worldwide?

3G Electric supplies MERSEN SMF1-1/4 fuses to customers worldwide. As a global industrial equipment distributor since 1990, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead times. We source and deliver genuine MERSEN components for your overcurrent protection needs.

How to select the correct MERSEN SMF series fuse for my application?

To select the correct MERSEN SMF series fuse, match the voltage rating (300 V AC) and current rating (1.25 A) to your circuit requirements. Consider the time-delay characteristic for motor or transformer inrush currents. Always verify the body style (cylindrical) and ensure the integrated insulating cap fits your holder. Consult a qualified engineer for critical applications.

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 fuses with integrated insulating caps. 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: SMF Series, Time-Delay, 3 A, 300 V AC (MPN SMF3)
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Midget time-delay fuse rated 1.4 A at 250 V AC with a 13/32 in x 1 1/2 in body. Indicating type for visual blown-fuse identification. Used for overcurrent protection in circuits with temporary inrush currents, such as motor control panels, lighting systems, transformers, and solenoids
MERSEN Fuse: GFN Series, Midget, Time-Delay, 4.5 A, 250 V AC, 13/32 in x 1 1/2 in, Indicating (MPN GFN4-1/2)
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MERSEN GFN Series time-delay midget fuse rated 1.5 A at 250 V AC. Dimensions 13/32 in x 1 1/2 in with indicating feature. Provides overcurrent protection for motor circuits, transformers, and other inductive loads subject to temporary inrush currents
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MERSEN GFN Series time-delay midget fuse rated 1.5 A at 250 V AC. Dimensions 13/32 in x 1 1/2 in with indicating feature. Provides overcurrent protection for motor circuits, transformers, and other inductive loads subject to temporary inrush currents

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