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MERSEN Semiconductor Fuse: A30QS Series, Fast-Acting, 20 A, 300 V AC - Fast-Acting Bolt-On Fuses
MERSENFast-Acting Bolt-On Fuses

MERSEN Semiconductor Fuse: A30QS Series, Fast-Acting, 20 A, 300 V AC

The MERSEN A30QS Series Semiconductor Fuse (MPN A30QS20-1) is a fast-acting bolt-on fuse rated for 20 A at 300 V AC and 300 V DC. This AC/DC voltage type fuse is designed for semiconductor protection in industrial…

SKU 3G-OTH-27717

Also listed as: A30QS201 · A30QS20 1

Brand
MERSEN
Item
Semiconductor Fuse: A30QS Series, Fast-Acting, 20 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
A30QS20-1
Series
A30QS
Type
Fast-Acting, 20 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 Semiconductor Fuse (MPN A30QS20-1) is a fast-acting bolt-on fuse rated for 20 A at 300 V AC and 300 V DC. This AC/DC voltage type fuse is designed for semiconductor protection in industrial equipment.

Frequently Asked Questions

What is the MERSEN A30QS20-1 semiconductor fuse used for?

The MERSEN A30QS20-1 is a fast-acting bolt-on fuse designed to protect semiconductor devices in industrial power equipment. It is commonly applied in variable frequency drives, rectifiers, and power supplies where rapid overcurrent interruption is critical to prevent damage to sensitive electronic components.

What are the specifications of the MERSEN A30QS20-1 fuse?

The MERSEN A30QS20-1 is a 20 A, 300 V AC/300 V DC fast-acting bolt-on fuse from the A30QS series. It features an AC/DC voltage rating and is designed for semiconductor protection. The manufacturer part number is A30QS20-1, and it is supplied by 3G Electric.

Where to buy the MERSEN A30QS20-1 fuse worldwide?

You can source the MERSEN A30QS20-1 fuse from 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; we provide competitive pricing and reliable sourcing for this fast-acting semiconductor fuse.

How to select the correct MERSEN A30QS20-1 fuse for an application?

To select the MERSEN A30QS20-1, verify that your circuit requires a 20 A fast-acting bolt-on fuse with a 300 V AC/300 V DC rating. Ensure the fuse holder accommodates bolt-on mounting. For semiconductor protection, confirm the fuse's interrupting rating meets your system's fault current. Consult MERSEN's application guide for coordination.

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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