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LITTELFUSE Semiconductor Fuse: L50QS Series, Very-Fast-Acting, 350 A, 500 V AC - Very-Fast-Acting Bolt-On Fuses
LITTELFUSEVery-Fast-Acting Bolt-On Fuses

LITTELFUSE Semiconductor Fuse: L50QS Series, Very-Fast-Acting, 350 A, 500 V AC

The LITTELFUSE L50QS Series is a very-fast-acting bolt-on semiconductor fuse, model L50QS350.V, rated for 350 A at 500 V AC and 500 V DC. This fuse provides overcurrent protection for power electronic circuits, with…

SKU 3G-OTH-25678

Also listed as: L50QS350V · L50QS350 V · L50QS350-V

Brand
LITTELFUSE
Item
Semiconductor Fuse: L50QS Series, Very-Fast-Acting, 350 A, 500 V AC
Category
Very-Fast-Acting Bolt-On Fuses
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Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
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Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

LITTELFUSE
Manufacturer Part Number
L50QS350.V
Series
L50QS
Type
Very-Fast-Acting, 350 A
AC
500 V
Voltage Type
AC/DC
DC DC Volt Rating
500 V

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

Product Description

The LITTELFUSE L50QS Series is a very-fast-acting bolt-on semiconductor fuse, model L50QS350.V, rated for 350 A at 500 V AC and 500 V DC. This fuse provides overcurrent protection for power electronic circuits, with a compact bolt-on design for secure installation.

Frequently Asked Questions

What is the LITTELFUSE L50QS350.V fuse used for?

The LITTELFUSE L50QS350.V is a very-fast-acting bolt-on semiconductor fuse used for overcurrent protection in power electronic circuits, such as inverters, drives, and UPS systems. Its 350 A rating at 500 V AC/DC makes it suitable for high-power industrial equipment requiring rapid fault clearing.

What are the specifications of the L50QS350.V fuse?

The L50QS350.V is a LITTELFUSE L50QS series very-fast-acting bolt-on fuse rated for 350 A at 500 V AC and 500 V DC. It features a compact bolt-on design for secure installation and is designed for overcurrent protection in power electronics. The voltage type is AC/DC.

Where to buy LITTELFUSE L50QS350.V worldwide?

3G Electric supplies the LITTELFUSE L50QS350.V fuse worldwide. As a global industrial equipment distributor, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time; we source and deliver this very-fast-acting semiconductor fuse to any country.

How to select the correct L50QS fuse for my application?

To select the correct L50QS fuse, match the voltage rating (500 V AC/DC) and current rating (350 A for this model) to your circuit requirements. Ensure the very-fast-acting characteristic suits your semiconductor protection needs. Consult the LITTELFUSE datasheet for mounting and derating guidelines. 3G Electric can assist with selection.

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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Compatible alternatives & equivalents

Cross-referenced by specification & description
Semiconductor Fuse: L50QS Series, Very-Fast-Acting, 500 A, 500 V AC, 500 V DC DC Volt Rating (MPN L50QS500.X)
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Semiconductor Fuse: L50QS Series, Very-Fast-Acting, 500 A, 500 V AC, 500 V DC DC Volt Rating (MPN L50QS500.X)
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Semiconductor Fuse: L50QS Series, Very-Fast-Acting, 400 A, 500 V AC, 500 V DC DC Volt Rating (MPN L50QS400.V)
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Semiconductor Fuse: L50QS Series, Very-Fast-Acting, 275 A, 500 V AC, 500 V DC DC Volt Rating (MPN L50QS275.V)
Semiconductor Fuse: L50QS Series, Very-Fast-Acting, 300 A, 500 V AC, 500 V DC DC Volt Rating (MPN L50QS300.V)
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Semiconductor Fuse: L50QS Series, Very-Fast-Acting, 300 A, 500 V AC, 500 V DC DC Volt Rating (MPN L50QS300.V)
Semiconductor Fuse: L50QS Series, Very-Fast-Acting, 325 A, 500 V AC, 500 V DC DC Volt Rating (MPN L50QS325.V)
LITTELFUSE
Semiconductor Fuse: L50QS Series, Very-Fast-Acting, 325 A, 500 V AC, 500 V DC DC Volt Rating (MPN L50QS325.V)

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