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LITTELFUSE Semiconductor Fuse: L70QS Series, Very-Fast-Acting, 500 A, 700 V AC - Very-Fast-Acting Bolt-On Fuses
LITTELFUSEVery-Fast-Acting Bolt-On Fuses

LITTELFUSE Semiconductor Fuse: L70QS Series, Very-Fast-Acting, 500 A, 700 V AC

The LITTELFUSE L70QS Series is a very-fast-acting bolt-on semiconductor fuse, model L70QS500.X, rated at 500 A and 700 V AC/DC. This fuse is designed for overcurrent protection in power electronic circuits, with a…

SKU 3G-OTH-26250

Also listed as: L70QS500X · L70QS500 X · L70QS500-X

Brand
LITTELFUSE
Item
Semiconductor Fuse: L70QS Series, Very-Fast-Acting, 500 A, 700 V AC
Category
Very-Fast-Acting Bolt-On Fuses
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Technical Specifications

LITTELFUSE
Manufacturer Part Number
L70QS500.X
Series
L70QS
Type
Very-Fast-Acting, 500 A
AC
700 V
Voltage Type
AC/DC
DC DC Volt Rating
700 V

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

Product Description

The LITTELFUSE L70QS Series is a very-fast-acting bolt-on semiconductor fuse, model L70QS500.X, rated at 500 A and 700 V AC/DC. This fuse is designed for overcurrent protection in power electronic circuits, with a 700 V DC voltage rating.

Frequently Asked Questions

What is the LITTELFUSE L70QS500.X semiconductor fuse used for?

The LITTELFUSE L70QS500.X is a very-fast-acting bolt-on fuse rated 500 A and 700 V AC/DC. It protects power electronic circuits such as drives, inverters, and UPS systems from overcurrent faults, ensuring equipment safety in industrial applications.

What are the specifications of the L70QS500.X fuse?

The L70QS500.X is a LITTELFUSE L70QS Series very-fast-acting semiconductor fuse. It has a current rating of 500 A, AC voltage rating of 700 V, and DC voltage rating of 700 V. It is a bolt-on type fuse for high-speed overcurrent protection.

Where to buy the LITTELFUSE L70QS500.X fuse worldwide?

3G Electric supplies the LITTELFUSE L70QS500.X fuse worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your site. Contact us for pricing and lead time on this very-fast-acting 500 A, 700 V DC fuse.

How to select the correct L70QS series fuse for a DC circuit?

To select the correct L70QS fuse, match the continuous current (500 A for L70QS500.X) and ensure the DC voltage rating (700 V DC) exceeds your system voltage. Verify the fuse's very-fast-acting characteristic suits your semiconductor protection needs. Consult LITTELFUSE application notes for coordination.

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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