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MERSEN A70QS80-4 Fast-Acting Bolt-On Fuse, 80 A, 700 V AC/DC - Fast-Acting Bolt-On Fuses
MERSENFast-Acting Bolt-On Fuses

MERSEN A70QS80-4 Fast-Acting Bolt-On Fuse, 80 A, 700 V AC/DC

The MERSEN A70QS Series Semiconductor Fuse (MPN A70QS80-4) is a fast-acting bolt-on fuse rated for 80 A at 700 V AC and 700 V DC. This AC/DC voltage type fuse is designed for semiconductor protection in industrial…

SKU 3G-OTH-25473

Also listed as: A70QS804 · A70QS80 4

Brand
MERSEN
Item
A70QS80-4 Fast-Acting Bolt-On Fuse, 80 A, 700 V AC/DC
Part Number
A70QS80-4
Category
Fast-Acting Bolt-On Fuses
Available to Order
Also known as:A70QS80-4MERSEN
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Technical Specifications

MERSEN
Manufacturer Part Number
A70QS80-4
Series
A70QS
Type
Fast-Acting, 80 A
AC
700 V
Voltage Type
AC/DC
DC DC Volt Rating
700 V

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

Product Description

The MERSEN A70QS Series Semiconductor Fuse (MPN A70QS80-4) is a fast-acting bolt-on fuse rated for 80 A at 700 V AC and 700 V DC. This AC/DC voltage type fuse is designed for semiconductor protection in industrial equipment.

Frequently Asked Questions

What is the MERSEN A70QS80-4 semiconductor fuse used for?

The MERSEN A70QS80-4 is a fast-acting bolt-on fuse used to protect semiconductor devices like diodes, thyristors, and IGBTs in industrial power supplies, drives, and converters. It safely interrupts overcurrents in AC/DC circuits up to 700 V.

What are the specifications of the MERSEN A70QS80-4 fuse?

The MERSEN A70QS80-4 is a 80 A, fast-acting bolt-on fuse rated for 700 V AC and 700 V DC. It belongs to the A70QS series and is designed for semiconductor protection. The voltage type is AC/DC, and the manufacturer part number is A70QS80-4.

Where to buy the MERSEN A70QS80-4 fuse worldwide?

3G Electric supplies the MERSEN A70QS80-4 fuse worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your facility. Contact us for a quote and lead time on this fast-acting semiconductor fuse.

How to select the right MERSEN A70QS80-4 fuse for an application?

To select the MERSEN A70QS80-4, match the 80 A rating and 700 V AC/DC voltage to your circuit's operating current and voltage. Ensure the fast-acting characteristic suits your semiconductor's I²t withstand capability. Consult MERSEN's application guide for coordination with upstream protection.

Used in

Common applications for MERSEN
Industrial control panels — Mersen USCC1 and USCC2 UL Class CC fuse blocks for DIN rail mounting and finger-safe branch circuit protection.
Motor starters — Mersen ATQ time-delay fuses and DAR0 R-rated fuses for motor overload and short-circuit protection.
Power supplies and instrumentation — Mersen GGM and GSB fast-acting cylindrical fuses for overcurrent protection in compact electronic circuits.
DC systems — Mersen A30QS very-fast-acting square fuses rated 300 V DC for semiconductor and DC equipment protection.
Medium-voltage distribution — Mersen DAR0 R-rated fuses rated 5.08 kV AC for general-purpose overcurrent protection with visual indication.
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MERSEN Products

3G Electric supplies MERSEN 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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