MERSEN Semiconductor Fuse: A30QS Series, Fast-Acting, 400 A, 300 V AC
The MERSEN A30QS Series Semiconductor Fuse (MPN A30QS400-4) is a fast-acting bolt-on fuse rated at 400 A and 300 V AC/300 V DC. This AC/DC voltage type fuse is designed for overcurrent protection in power electronic…
SKU 3G-OTH-26170
Also listed as: A30QS4004 · A30QS400 4
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Product Description
The MERSEN A30QS Series Semiconductor Fuse (MPN A30QS400-4) is a fast-acting bolt-on fuse rated at 400 A and 300 V AC/300 V DC. This AC/DC voltage type fuse is designed for overcurrent protection in power electronic circuits.
Frequently Asked Questions
What is the MERSEN A30QS400-4 semiconductor fuse used for?
The MERSEN A30QS400-4 is a fast-acting bolt-on fuse used for overcurrent protection in power electronic circuits. It is commonly applied in variable frequency drives, UPS systems, and DC power supplies where rapid clearing of fault currents is required to protect sensitive semiconductor devices.
What are the specifications of the MERSEN A30QS400-4 fuse?
The MERSEN A30QS400-4 is a 400 A, 300 V AC/300 V DC fast-acting bolt-on fuse from the A30QS series. It features an AC/DC voltage type and is designed for overcurrent protection in power electronics. The manufacturer part number is A30QS400-4.
Where to buy the MERSEN A30QS400-4 fuse worldwide?
You can source the MERSEN A30QS400-4 fuse through 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 supply genuine MERSEN components for power protection applications.
How to select the correct MERSEN A30QS series fuse for a circuit?
To select the correct MERSEN A30QS fuse, match the voltage rating (300 V AC/300 V DC) and current rating (e.g., 400 A) to your circuit requirements. Ensure the fast-acting characteristic aligns with the inrush current of your semiconductor load. Consult the fuse's I²t curve and mounting style (bolt-on) for proper coordination.
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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.
