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MERSEN Semiconductor Fuse: A30QS Series, Fast-Acting, 700 A, 300 V AC - Fast-Acting Bolt-On Fuses
MERSENFast-Acting Bolt-On Fuses

MERSEN Semiconductor Fuse: A30QS Series, Fast-Acting, 700 A, 300 V AC

The MERSEN A30QS Series is a fast-acting bolt-on fuse designed for semiconductor protection. This specific model, MPN A30QS700-4, is rated for 700 A at 300 V AC and 300 V DC. It operates as a fast-acting fuse with an…

SKU 3G-OTH-26430

Also listed as: A30QS7004 · A30QS700 4

Brand
MERSEN
Item
Semiconductor Fuse: A30QS Series, Fast-Acting, 700 A, 300 V AC
Category
Fast-Acting Bolt-On Fuses
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

MERSEN
Manufacturer Part Number
A30QS700-4
Series
A30QS
Type
Fast-Acting, 700 A
AC
300 V
Voltage Type
AC/DC
DC DC Volt Rating
300 V

Technical Documents

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

Product Description

The MERSEN A30QS Series is a fast-acting bolt-on fuse designed for semiconductor protection. This specific model, MPN A30QS700-4, is rated for 700 A at 300 V AC and 300 V DC. It operates as a fast-acting fuse with an AC/DC voltage type.

Frequently Asked Questions

What is the MERSEN A30QS700-4 semiconductor fuse used for?

The MERSEN A30QS700-4 is a fast-acting bolt-on fuse designed to protect semiconductor devices such as diodes, thyristors, and IGBTs from overcurrent. It is commonly used in power supplies, drives, and industrial rectifier circuits where rapid clearing of faults is critical to prevent damage.

What are the specifications of the MERSEN A30QS700-4 fuse?

The MERSEN A30QS700-4 is a 700 A fast-acting fuse from the A30QS series. It is rated for 300 V AC and 300 V DC, making it suitable for AC/DC applications. The bolt-on design ensures secure mounting in high-current circuits. 3G Electric supplies this genuine MERSEN part globally.

Where to buy the MERSEN A30QS700-4 fuse worldwide?

3G Electric supplies the MERSEN A30QS700-4 fuse to customers worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your site. Contact us for a quote and lead time on this fast-acting semiconductor fuse.

How to select the correct MERSEN A30QS series fuse for my application?

Select the MERSEN A30QS fuse based on your circuit's continuous current rating and voltage. For semiconductor protection, choose a fast-acting fuse with a voltage rating equal to or greater than your system's AC or DC voltage. Verify the interrupting rating matches your fault current. 3G Electric can help confirm the right part.

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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