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3G Electric
LITTELFUSE L50QS090.T Very-Fast-Acting Bolt-On Fuse, 90 A, 500 V AC/DC - Very-Fast-Acting Bolt-On Fuses
LITTELFUSEVery-Fast-Acting Bolt-On Fuses

LITTELFUSE L50QS090.T Very-Fast-Acting Bolt-On Fuse, 90 A, 500 V AC/DC

The LITTELFUSE L50QS Series Semiconductor Fuse (MPN L50QS090.T) is a very-fast-acting bolt-on fuse rated for 90 A at 500 V AC and 500 V DC. This AC/DC voltage-type fuse is designed for overcurrent protection in power…

SKU 3G-OTH-25612

Also listed as: L50QS090T · L50QS090 T · L50QS090-T

Brand
LITTELFUSE
Item
L50QS090.T Very-Fast-Acting Bolt-On Fuse, 90 A, 500 V AC/DC
Part Number
L50QS090.T
Category
Very-Fast-Acting Bolt-On Fuses
Available to Order
Also known as:L50QS090.TLITTELFUSE
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Local office
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Phone
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Technical Specifications

LITTELFUSE
Manufacturer Part Number
L50QS090.T
Series
L50QS
Type
Very-Fast-Acting, 90 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 Semiconductor Fuse (MPN L50QS090.T) is a very-fast-acting bolt-on fuse rated for 90 A at 500 V AC and 500 V DC. This AC/DC voltage-type fuse is designed for overcurrent protection in power electronic circuits.

Frequently Asked Questions

What is the LITTELFUSE L50QS090.T semiconductor fuse used for?

The LITTELFUSE L50QS090.T is a very-fast-acting bolt-on fuse used for overcurrent protection in power electronic circuits, such as variable frequency drives, UPS systems, and rectifiers. It protects sensitive semiconductor devices from short circuits and overloads in AC or DC applications up to 500 V.

What are the specifications of the L50QS090.T fuse?

The L50QS090.T is a 90 A, very-fast-acting semiconductor fuse from the LITTELFUSE L50QS series. It is rated for 500 V AC and 500 V DC, with a bolt-on mounting style. The part number is L50QS090.T, and it is designed for overcurrent protection in power electronics.

Where to buy LITTELFUSE L50QS090.T worldwide?

You can source the LITTELFUSE L50QS090.T fuse 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 power protection applications.

How to select the correct L50QS series fuse for my application?

To select the correct L50QS fuse, match the continuous current rating (e.g., 90 A) to your circuit's load, and ensure the voltage rating (500 V AC/DC) exceeds your system voltage. Consider the very-fast-acting characteristic for semiconductor protection. Consult LITTELFUSE application notes for coordination with upstream devices.

Used in

Common applications for LITTELFUSE
Industrial drives — Littelfuse PSR series semiconductor fuses for overcurrent protection of variable-frequency drives and DC bus circuits.
Branch circuit protection — Littelfuse CCMR series time-delay fuses in control panels and distribution boards.
Compact equipment — Littelfuse SLC series Class G fuses in rejection-style holders for space-constrained branch circuits.
Main service entrance — Littelfuse KLPC series Class L bolt-on fuses for high-current industrial power distribution.
Motor circuits — Littelfuse FLSR series Class RK5 time-delay fuses for motor branch circuits and transformers.
Power supplies — Littelfuse 473 series axial-lead time-delay fuses for solder-in protection in power supplies and instrumentation.
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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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LITTELFUSE
Very-fast-acting bolt-on fuse rated 400 A at 500 V AC and 500 V DC. Designed for overcurrent protection in power electronic circuits such as drives, inverters, and rectifiers. Bolt-on mounting ensures secure installation

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