Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

LITTELFUSE Semiconductor Fuse: L50QS Series, Very-Fast-Acting, 125 A, 500 V AC - Very-Fast-Acting Bolt-On Fuses

LITTELFUSEVery-Fast-Acting Bolt-On Fuses

LITTELFUSE Semiconductor Fuse: L50QS Series, Very-Fast-Acting, 125 A, 500 V AC

The LITTELFUSE L50QS Series is a very-fast-acting bolt-on semiconductor fuse rated at 125 A and 500 V AC/500 V DC (MPN L50QS125.V). Designed for AC/DC voltage applications, this fuse provides overcurrent protection…

SKU 3G-OTH-25664

Brand

LITTELFUSE

Item

Semiconductor Fuse: L50QS Series, Very-Fast-Acting, 125 A, 500 V AC

Category

Very-Fast-Acting Bolt-On Fuses

Available to Order

Trade pricing by quote — replies within 24h

Qty

WhatsApp an engineer

No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.

Create free account →Log in

Worldwide Shipping

Air & sea freight

Datasheet on Request

Technical specs

1-Day Quote

Replies within 24h

Technical Specifications

LITTELFUSE

Manufacturer Part Number

L50QS125.V 

Series

L50QS 

Type

Very-Fast-Acting, 125 A 

AC

500 V 

Voltage Type

AC/DC 

DC DC Volt Rating

500 V 

View Full Spec Sheet

Technical Documents

No technical documents available for this product.

Request documentation →

Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.

Talk to an engineer

Ask a question

LITTELFUSE Products

3G Electric (S) Pte. Ltd. — Singapore

Product Description

The LITTELFUSE L50QS Series is a very-fast-acting bolt-on semiconductor fuse rated at 125 A and 500 V AC/500 V DC (MPN L50QS125.V). Designed for AC/DC voltage applications, this fuse provides overcurrent protection for power electronic circuits.

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.

Browse all LITTELFUSE products →Contact our engineers →

You might also need

Burners & Combustion →Pumps & Compressors →Spare Parts →All Products →

Similar products

Matched by specification & description

Semiconductor Fuse: L50QS Series, Very-Fast-Acting, 150 A, 500 V AC, 500 V DC DC Volt Rating (MPN L50QS150.V). Key specifications — Series: L50QS; Brand: LITTELFUSE; Voltage Type: AC/DC.

Semiconductor Fuse: L50QS Series, Very-Fast-Acting, 40 A, 500 V AC, 500 V DC DC Volt Rating (MPN L50QS040.T). Key specifications — Series: L50QS; Brand: LITTELFUSE; Voltage Type: AC/DC.

Semiconductor Fuse: L50QS Series, Very-Fast-Acting, 100 A, 500 V AC, 500 V DC DC Volt Rating (MPN L50QS100.T). Key specifications — Series: L50QS; Brand: LITTELFUSE; Voltage Type: AC/DC.

Semiconductor Fuse: L50QS Series, Very-Fast-Acting, 225 A, 500 V AC, 500 V DC DC Volt Rating (MPN L50QS225.V). Key specifications — Series: L50QS; Brand: LITTELFUSE; Voltage Type: AC/DC.

Semiconductor Fuse: L50QS Series, Very-Fast-Acting, 50 A, 500 V AC, 500 V DC DC Volt Rating (MPN L50QS050.T). Key specifications — Series: L50QS; Brand: LITTELFUSE; Voltage Type: AC/DC.

Semiconductor Fuse: L50QS Series, Very-Fast-Acting, 500 A, 500 V AC, 500 V DC DC Volt Rating (MPN L50QS500.X). Key specifications — Series: L50QS; Brand: LITTELFUSE; Voltage Type: AC/DC.

More from LITTELFUSE

View all LITTELFUSE parts →

Semiconductor Fuse: L70QS Series, Very-Fast-Acting, 35 A, 700 V AC, 700 V DC DC Volt Rating (MPN L70QS035.V). Key specifications — Series: L70QS; Brand: LITTELFUSE; Voltage Type: AC/DC.

Semiconductor Fuse: L75QS Series, Very-Fast-Acting, 200 A, 750 V DC DC Volt Rating, Non-Indicating (MPN L75QS200.V). Key specifications — Series: L75QS; Brand: LITTELFUSE; Voltage Type: DC Only.

Semiconductor Fuse: L75QS Series, Very-Fast-Acting, 90 A, 750 V DC DC Volt Rating, Non-Indicating (MPN L75QS090.V). Key specifications — Series: L75QS; Brand: LITTELFUSE; Voltage Type: DC Only.

Semiconductor Fuse: L75QS Series, Very-Fast-Acting, 70 A, 750 V DC DC Volt Rating, Non-Indicating (MPN L75QS070.V). Key specifications — Series: L75QS; Brand: LITTELFUSE; Voltage Type: DC Only.

Semiconductor Fuse: L70QS Series, Very-Fast-Acting, 450 A, 700 V AC, 700 V DC DC Volt Rating (MPN L70QS450.X). Key specifications — Series: L70QS; Brand: LITTELFUSE; Voltage Type: AC/DC.

Semiconductor Fuse: L75QS Series, Very-Fast-Acting, 150 A, 750 V DC DC Volt Rating, Non-Indicating (MPN L75QS150.V). Key specifications — Series: L75QS; Brand: LITTELFUSE; Voltage Type: DC Only.

Semiconductor Fuse: L50QS Series, Very-Fast-Acting, 80 A, 500 V AC, 500 V DC DC Volt Rating (MPN L50QS080.T). Key specifications — Series: L50QS; Brand: LITTELFUSE; Voltage Type: AC/DC.

Semiconductor Fuse: L75QS Series, Very-Fast-Acting, 35 A, 750 V DC DC Volt Rating, Non-Indicating (MPN L75QS035.V). Key specifications — Series: L75QS; Brand: LITTELFUSE; Voltage Type: DC Only.