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LITTELFUSE Semiconductor Fuse: L75QS Series, Very-Fast-Acting, 500 A, 750 V DC DC Volt Rating - Very-Fast-Acting Bolt-On Fuses
LITTELFUSEVery-Fast-Acting Bolt-On Fuses

LITTELFUSE Semiconductor Fuse: L75QS Series, Very-Fast-Acting, 500 A, 750 V DC DC Volt Rating

The LITTELFUSE L75QS Series is a very-fast-acting bolt-on semiconductor fuse, model L75QS500.X, rated for 500 A at 750 V DC. This DC-only fuse is designed for overcurrent protection in power electronic circuits. It…

SKU 3G-OTH-25651

Also listed as: L75QS500X · L75QS500 X · L75QS500-X

Brand
LITTELFUSE
Item
Semiconductor Fuse: L75QS Series, Very-Fast-Acting, 500 A, 750 V DC DC Volt Rating
Category
Very-Fast-Acting Bolt-On Fuses
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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

LITTELFUSE
Manufacturer Part Number
L75QS500.X
Series
L75QS
Type
Very-Fast-Acting, 500 A, Non-Indicating
Voltage Type
DC Only
DC DC Volt Rating
750 V

Technical Documents

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

Product Description

The LITTELFUSE L75QS Series is a very-fast-acting bolt-on semiconductor fuse, model L75QS500.X, rated for 500 A at 750 V DC. This DC-only fuse is designed for overcurrent protection in power electronic circuits. It is a non-indicating, bolt-on style fuse from the L75QS series.

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 LITTELFUSE L75QS500.X fuse used for?

The LITTELFUSE L75QS500.X is a very-fast-acting bolt-on semiconductor fuse used for overcurrent protection in DC power electronic circuits, such as inverters, drives, and UPS systems. Its 500 A rating and 750 V DC voltage rating make it suitable for high-power DC applications requiring rapid fault clearing.

What are the specifications of the L75QS500.X fuse?

The L75QS500.X is a very-fast-acting, non-indicating bolt-on fuse from the LITTELFUSE L75QS Series. It is rated for 500 A at 750 V DC only. The part number is L75QS500.X, and it is designed for DC overcurrent protection in power electronics.

Where to buy the L75QS500.X fuse worldwide?

You can source the L75QS500.X fuse from 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 your DC protection needs.

How to select the correct L75QS series fuse for a DC circuit?

To select the correct L75QS fuse, match the DC voltage rating (750 V DC) and continuous current rating (e.g., 500 A for the L75QS500.X) to your circuit requirements. Ensure the fuse is very-fast-acting for semiconductor protection. Consult LITTELFUSE application notes for coordination with your equipment.

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 very-fast-acting bolt-on fuses. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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