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LITTELFUSE Semiconductor Fuse: L70QS Series, Very-Fast-Acting, 40 A, 700 V AC - Very-Fast-Acting Bolt-On Fuses
LITTELFUSEVery-Fast-Acting Bolt-On Fuses

LITTELFUSE Semiconductor Fuse: L70QS Series, Very-Fast-Acting, 40 A, 700 V AC

The LITTELFUSE L70QS Series is a very-fast-acting bolt-on semiconductor fuse rated at 40 A, 700 V AC, and 700 V DC (MPN L70QS040.V). It is designed for AC/DC voltage applications and provides overcurrent protection…

SKU 3G-OTH-25108

Brand
LITTELFUSE
Item
Semiconductor Fuse: L70QS Series, Very-Fast-Acting, 40 A, 700 V AC
Category
Very-Fast-Acting Bolt-On Fuses
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Technical Specifications

LITTELFUSE
Manufacturer Part Number
L70QS040.V
Series
L70QS
Type
Very-Fast-Acting, 40 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 rated at 40 A, 700 V AC, and 700 V DC (MPN L70QS040.V). It is designed for AC/DC voltage applications and provides overcurrent protection for power electronic circuits.

Frequently Asked Questions

What is the LITTELFUSE L70QS040.V semiconductor fuse used for?

The LITTELFUSE L70QS040.V is a very-fast-acting bolt-on fuse used for overcurrent protection in power electronic circuits, such as variable frequency drives, UPS systems, and DC power supplies. It handles 40 A at 700 V AC or 700 V DC, safeguarding sensitive semiconductor devices from short circuits and overloads.

What are the specifications of the L70QS040.V fuse?

The L70QS040.V is a LITTELFUSE L70QS Series very-fast-acting bolt-on fuse rated at 40 A, 700 V AC, and 700 V DC. It is designed for AC/DC voltage applications and provides overcurrent protection for power electronic circuits. The manufacturer part number is L70QS040.V.

Where to buy the LITTELFUSE L70QS040.V fuse worldwide?

You can source the LITTELFUSE L70QS040.V 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 electronics protection.

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

To select the correct L70QS fuse, match the voltage rating (700 V AC or DC) and current rating (e.g., 40 A) to your circuit requirements. Ensure the fuse's very-fast-acting characteristic protects semiconductor devices. Consult the LITTELFUSE datasheet for interrupting rating and mounting dimensions. 3G Electric can assist with sourcing the right part.

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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