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MERSEN Semiconductor Fuse: A70QS Series, Fast-Acting, 50 A, 690 V AC, 700 V DC DC Volt Rating - Fast-Acting Bolt-On Fuses
MERSENFast-Acting Bolt-On Fuses

MERSEN Semiconductor Fuse: A70QS Series, Fast-Acting, 50 A, 690 V AC, 700 V DC DC Volt Rating

The MERSEN A70QS Series is a fast-acting bolt-on semiconductor fuse with a 50 A current rating, 690 V AC and 700 V DC voltage ratings, and an indicating feature (MPN A70QS50-22FI). This AC/DC fuse is designed for…

SKU 3G-OTH-28222

Also listed as: A70QS5022FI · A70QS50 22FI

Brand
MERSEN
Item
Semiconductor Fuse: A70QS Series, Fast-Acting, 50 A, 690 V AC, 700 V DC DC Volt Rating
Category
Fast-Acting Bolt-On Fuses
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Technical Specifications

MERSEN
Manufacturer Part Number
A70QS50-22FI
Series
A70QS
Type
Fast-Acting, 50 A, Indicating
AC
690 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 is a fast-acting bolt-on semiconductor fuse with a 50 A current rating, 690 V AC and 700 V DC voltage ratings, and an indicating feature (MPN A70QS50-22FI). This AC/DC fuse is designed for overcurrent protection in power electronic circuits.

Frequently Asked Questions

What is the MERSEN A70QS50-22FI semiconductor fuse used for?

The MERSEN A70QS50-22FI is a fast-acting bolt-on fuse used for overcurrent protection in power electronic circuits, such as variable frequency drives, rectifiers, and UPS systems. Its 50 A rating and 690 V AC / 700 V DC voltage ratings make it suitable for industrial equipment requiring reliable short-circuit protection.

What are the specifications of the MERSEN A70QS50-22FI fuse?

The MERSEN A70QS50-22FI is a fast-acting semiconductor fuse from the A70QS series. It has a current rating of 50 A, AC voltage rating of 690 V, DC voltage rating of 700 V, and an indicating feature. It is a bolt-on design for secure mounting in power electronic applications.

Where to buy the MERSEN A70QS50-22FI fuse worldwide?

You can source the MERSEN A70QS50-22FI 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 on this fast-acting semiconductor fuse.

How to select the correct MERSEN A70QS series fuse for my application?

To select the correct MERSEN A70QS fuse, match the voltage rating (AC/DC) and current rating to your circuit requirements. The A70QS50-22FI is rated 50 A, 690 V AC, and 700 V DC. Ensure the bolt-on mounting fits your panel. Consult the manufacturer's data sheet for coordination with your equipment.

Used in

Common applications for MERSEN
Power electronics protection — MERSEN A70Q series semiconductor fuses in variable frequency drives for motor control.
Surge protection for industrial panels — MERSEN STP480D07 SPDs in three-phase 480V AC distribution boards.
Control circuit overcurrent protection — MERSEN ATM series midget fuses in PLC and instrumentation cabinets.
Power distribution in manufacturing — MERSEN FSPDB4A finger-safe blocks in motor control centers for wire management.
DC bus protection in renewable energy — MERSEN A30QS series fuses in solar inverter DC inputs.
High-voltage semiconductor protection — MERSEN A70Q series fuses in welding equipment power supplies.

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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