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LITTELFUSE SPF Series Fast-Acting Cylindrical Fuse, 3 A, 1000 V DC, SPF003 - Fast-Acting Cylindrical Fuses
LITTELFUSEFast-Acting Cylindrical Fuses

LITTELFUSE SPF Series Fast-Acting Cylindrical Fuse, 3 A, 1000 V DC, SPF003

The LITTELFUSE SPF Series SPF003 is a fast-acting cylindrical fuse rated at 3 A and 1,000 V DC. This solar fuse is designed for overcurrent protection in photovoltaic systems.

SKU 3G-OTH-26774

Also listed as: SPF 003 · SPF-003

Brand
LITTELFUSE
Item
SPF Series Fast-Acting Cylindrical Fuse, 3 A, 1000 V DC, SPF003
Category
Fast-Acting Cylindrical Fuses
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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

LITTELFUSE
Manufacturer Part Number
SPF003
Series
SPF

Technical Documents

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

Product Description

The LITTELFUSE SPF Series SPF003 is a fast-acting cylindrical fuse rated at 3 A and 1,000 V DC. This solar fuse is designed for overcurrent protection in photovoltaic systems.

Frequently Asked Questions

What is the LITTELFUSE SPF003 solar fuse used for?

The LITTELFUSE SPF003 is a fast-acting cylindrical fuse used for overcurrent protection in photovoltaic (solar) systems. It safeguards DC circuits against short circuits and overloads, helping prevent damage to solar panels, inverters, and combiner boxes in residential and commercial solar installations.

What are the specifications of the LITTELFUSE SPF003?

The LITTELFUSE SPF003 is part of the SPF Series, rated at 3 A and 1,000 V DC. It is a fast-acting cylindrical fuse designed for solar applications. The manufacturer part number is SPF003, and it is manufactured by LITTELFUSE.

Where to buy the LITTELFUSE SPF003 worldwide?

You can source the LITTELFUSE SPF003 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 time; we supply genuine LITTELFUSE components for solar protection.

How to select the correct LITTELFUSE SPF series fuse for a solar system?

Select the SPF series fuse based on the system's maximum DC voltage and continuous current. The SPF003 is rated for 3 A at 1,000 V DC. Ensure the fuse's voltage rating meets or exceeds the array's open-circuit voltage, and the current rating is slightly above the string's maximum operating current for reliable overcurrent protection.

Used in

Common applications for LITTELFUSE
Power electronics protection — Littelfuse PSR Series semiconductor fuses for IGBT and diode protection in variable frequency drives.
Solar photovoltaic systems — Littelfuse SPF Series fast-acting fuses for string overcurrent protection in PV arrays.
Automotive electrical systems — Littelfuse MIDI® 498 Series bolt-on fuses for battery and alternator protection in vehicles.
Industrial control panels — Littelfuse KLKD Series midget fuses for branch circuit protection in control transformers and relays.
Motor control centers — Littelfuse BLF Series fast-acting fuses for short-circuit protection of motor starters and contactors.

LITTELFUSE Products

3G Electric supplies LITTELFUSE 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 at 2 A and 1000 V DC. Designed for overcurrent protection in DC circuits. Typical applications include photovoltaic systems and other DC power distribution equipment
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Fast-acting cylindrical fuse rated at 2 A and 1000 V DC. Designed for overcurrent protection in DC circuits. Typical applications include photovoltaic systems and other DC power distribution equipment
Solar Fuse: SPF Series, Fast-Acting, 10 A, 1,000 V DC (MPN SPF010)
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Fast-acting cylindrical fuse rated 20 A and 1000 V DC. Designed for overcurrent protection in photovoltaic systems, suitable for use in solar combiner boxes and DC circuits
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Fast-acting cylindrical fuse rated 20 A and 1000 V DC. Designed for overcurrent protection in photovoltaic systems, suitable for use in solar combiner boxes and DC circuits
Solar Fuse: SPF Series, Fast-Acting, 30 A, 1,000 V DC (MPN SPF030)
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Solar Fuse: SPF Series, Fast-Acting, 30 A, 1,000 V DC (MPN SPF030)
Fast-acting cylindrical fuse rated 12 A and 1000 V DC. Designed for overcurrent protection in photovoltaic systems, such as solar panel strings and combiner boxes
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Fast-acting cylindrical fuse rated 12 A and 1000 V DC. Designed for overcurrent protection in photovoltaic systems, such as solar panel strings and combiner boxes
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Solar Fuse: SPF Series, Fast-Acting, 15 A, 1,000 V DC (MPN SPF015)

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