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MERSEN A70Q350-4 Fast-Acting Bolt-On Fuse, 350 A, 700 V AC, 650 V DC - Fast-Acting Bolt-On Fuses
MERSENFast-Acting Bolt-On Fuses

MERSEN A70Q350-4 Fast-Acting Bolt-On Fuse, 350 A, 700 V AC, 650 V DC

The MERSEN A70Q Series Semiconductor Fuse (MPN A70Q350-4) is a fast-acting bolt-on fuse rated at 350 A, 700 V AC, and 650 V DC. This AC/DC voltage-type fuse is designed for overcurrent protection in power electronic…

SKU 3G-OTH-27729

Also listed as: A70Q3504 · A70Q350 4

Brand
MERSEN
Item
A70Q350-4 Fast-Acting Bolt-On Fuse, 350 A, 700 V AC, 650 V DC
Part Number
A70Q350-4
Category
Fast-Acting Bolt-On Fuses
Available to Order
Also known as:A70Q350-4MERSEN
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Technical Specifications

MERSEN
Manufacturer Part Number
A70Q350-4
Series
A70Q
Type
Fast-Acting, 350 A
AC
700 V
Voltage Type
AC/DC
DC DC Volt Rating
650 V

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

Product Description

The MERSEN A70Q Series Semiconductor Fuse (MPN A70Q350-4) is a fast-acting bolt-on fuse rated at 350 A, 700 V AC, and 650 V DC. This AC/DC voltage-type fuse is designed for overcurrent protection in power electronic circuits.

Frequently Asked Questions

What is the MERSEN A70Q350-4 semiconductor fuse used for?

The MERSEN A70Q350-4 is a fast-acting bolt-on fuse used for overcurrent protection in power electronic circuits, such as variable frequency drives, rectifiers, and UPS systems. It safeguards sensitive semiconductor devices by quickly clearing faults in AC or DC applications up to 700 V AC and 650 V DC.

What are the specifications of the MERSEN A70Q350-4 fuse?

The MERSEN A70Q350-4 is a 350 A, fast-acting semiconductor fuse from the A70Q series. It has an AC voltage rating of 700 V and a DC voltage rating of 650 V, with AC/DC voltage type. The bolt-on design ensures secure mounting in industrial power electronic equipment.

Where to buy the MERSEN A70Q350-4 fuse worldwide?

3G Electric supplies the MERSEN A70Q350-4 semiconductor fuse worldwide. As a global industrial equipment distributor, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time; we source and deliver this MERSEN fuse to any country.

How to select the correct MERSEN A70Q350-4 fuse for my application?

To select the MERSEN A70Q350-4, verify your circuit's continuous current (350 A) and voltage (700 V AC or 650 V DC). Ensure the fast-acting characteristic matches your semiconductor's I²t withstand capability. Consult the MERSEN A70Q series datasheet for mounting dimensions and clearing time curves.

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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