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MERSEN Semiconductor Fuse: A70QS Series, Fast-Acting, 350 A, 700 V AC - Fast-Acting Bolt-On Fuses
MERSENFast-Acting Bolt-On Fuses

MERSEN Semiconductor Fuse: A70QS Series, Fast-Acting, 350 A, 700 V AC

The MERSEN A70QS Series is a fast-acting bolt-on semiconductor fuse rated at 350 A, 700 V AC, and 700 V DC (MPN A70QS350-4). This AC/DC voltage type fuse is designed for overcurrent protection in power electronic…

SKU 3G-OTH-27453

Brand
MERSEN
Item
Semiconductor Fuse: A70QS Series, Fast-Acting, 350 A, 700 V AC
Category
Fast-Acting Bolt-On Fuses
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Technical Specifications

MERSEN
Manufacturer Part Number
A70QS350-4
Series
A70QS
Type
Fast-Acting, 350 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 is a fast-acting bolt-on semiconductor fuse rated at 350 A, 700 V AC, and 700 V DC (MPN A70QS350-4). This AC/DC voltage type fuse is designed for overcurrent protection in power electronic circuits.

Frequently Asked Questions

What is the MERSEN A70QS350-4 fuse used for?

The MERSEN A70QS350-4 is a fast-acting bolt-on semiconductor fuse used for overcurrent protection in power electronic circuits, such as drives, inverters, and UPS systems. It handles 350 A at 700 V AC/DC, safeguarding sensitive components from short circuits and overloads.

What are the specifications of the MERSEN A70QS350-4?

The MERSEN A70QS350-4 is a fast-acting semiconductor fuse from the A70QS Series. It is rated at 350 A, 700 V AC, and 700 V DC, with AC/DC voltage type. The manufacturer part number is A70QS350-4. It is a bolt-on design for secure mounting in power electronics.

Where to buy the MERSEN A70QS350-4 worldwide?

You can source the MERSEN A70QS350-4 fuse through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide locations. Contact us for availability and lead time; we supply genuine MERSEN components for power protection needs.

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

To select the correct MERSEN A70QS fuse, match the voltage rating (700 V AC/DC) and current rating (350 A) to your circuit requirements. Ensure the fast-acting characteristic suits semiconductor protection. Verify physical dimensions and bolt-on mounting style. Consult the A70QS series datasheet 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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