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MERSEN Semiconductor Fuse: A50P Series, Fast-Acting, 400 A, 500 V AC - Fast-Acting Bolt-On Fuses
MERSENFast-Acting Bolt-On Fuses

MERSEN Semiconductor Fuse: A50P Series, Fast-Acting, 400 A, 500 V AC

The MERSEN A50P Series Semiconductor Fuse (MPN A50QS400-4) is a fast-acting bolt-on fuse rated for 400 A at 500 V AC and 500 V DC. This AC/DC voltage type fuse is designed for semiconductor protection in industrial…

SKU 3G-OTH-26192

Brand
MERSEN
Item
Semiconductor Fuse: A50P Series, Fast-Acting, 400 A, 500 V AC
Category
Fast-Acting Bolt-On Fuses
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Technical Specifications

MERSEN
Manufacturer Part Number
A50QS400-4
Series
A50P
Type
Fast-Acting, 400 A
AC
500 V
Voltage Type
AC/DC
DC DC Volt Rating
500 V
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MERSEN Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The MERSEN A50P Series Semiconductor Fuse (MPN A50QS400-4) is a fast-acting bolt-on fuse rated for 400 A at 500 V AC and 500 V DC. This AC/DC voltage type fuse is designed for semiconductor protection in industrial equipment.

Frequently Asked Questions

What is the MERSEN A50QS400-4 semiconductor fuse used for?

The MERSEN A50QS400-4 is a fast-acting bolt-on fuse used to protect semiconductor devices like rectifiers, inverters, and drives from overcurrent in industrial power electronics. It is rated for 400 A at 500 V AC/DC and is common in motor control centers and UPS systems.

What are the specifications of the MERSEN A50P series fuse?

The MERSEN A50P series fuse, model A50QS400-4, is a fast-acting bolt-on fuse with a current rating of 400 A and voltage rating of 500 V AC and 500 V DC. It is part of the A50P series and is designed for AC/DC semiconductor protection in industrial equipment.

Where to buy MERSEN A50QS400-4 fuses worldwide?

3G Electric supplies the MERSEN A50QS400-4 fuse to customers worldwide. We handle full logistics, customs clearance, and delivery to your site. Contact us for pricing and lead time on this fast-acting 400 A, 500 V AC/DC semiconductor fuse.

How to select the right MERSEN A50P fuse for my application?

To select the correct MERSEN A50P fuse, match the voltage rating (500 V AC/DC) and current rating (400 A) to your circuit requirements. Ensure the fast-acting characteristic aligns with your semiconductor's surge tolerance. Consult the manufacturer's data sheet for I²t and breaking capacity limits.

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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