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MERSEN Semiconductor Fuse: A70QS Series, Fast-Acting, 300 A, 700 V AC - Fast-Acting Bolt-On Fuses
MERSENFast-Acting Bolt-On Fuses

MERSEN Semiconductor Fuse: A70QS Series, Fast-Acting, 300 A, 700 V AC

The MERSEN A70QS Series is a fast-acting bolt-on semiconductor fuse designed for AC/DC applications. This model, part number A70QS300-4, is rated for 300 A at 700 V AC and 700 V DC. It provides overcurrent protection…

SKU 3G-OTH-26067

Brand
MERSEN
Item
Semiconductor Fuse: A70QS Series, Fast-Acting, 300 A, 700 V AC
Category
Fast-Acting Bolt-On Fuses
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Technical Specifications

MERSEN
Manufacturer Part Number
A70QS300-4
Series
A70QS
Type
Fast-Acting, 300 A
AC
700 V
Voltage Type
AC/DC
DC DC Volt Rating
700 V
View Full Spec Sheet

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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 designed for AC/DC applications. This model, part number A70QS300-4, is rated for 300 A at 700 V AC and 700 V DC. It provides overcurrent protection for power electronic circuits.

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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