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MERSEN A50QS450-4 Fast-Acting Bolt-On Fuse, 450 A, 500 V AC/DC - Fast-Acting Bolt-On Fuses
MERSENFast-Acting Bolt-On Fuses

MERSEN A50QS450-4 Fast-Acting Bolt-On Fuse, 450 A, 500 V AC/DC

The MERSEN A50P Series Semiconductor Fuse (MPN A50QS450-4) is a fast-acting bolt-on fuse rated for 450 A at 500 V AC and 500 V DC. This AC/DC voltage-type fuse is designed for overcurrent protection in power…

SKU 3G-OTH-28207

Also listed as: A50QS4504 · A50QS450 4

Brand
MERSEN
Item
A50QS450-4 Fast-Acting Bolt-On Fuse, 450 A, 500 V AC/DC
Part Number
A50QS450-4
Category
Fast-Acting Bolt-On Fuses
Available to Order
Also known as:A50QS450-4MERSEN
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Technical Specifications

MERSEN
Manufacturer Part Number
A50QS450-4
Series
A50P
Type
Fast-Acting, 450 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 A50QS450-4) is a fast-acting bolt-on fuse rated for 450 A at 500 V AC and 500 V DC. This AC/DC voltage-type fuse is designed for overcurrent protection in power electronic circuits.

Frequently Asked Questions

What is the MERSEN A50P Series semiconductor fuse used for?

The MERSEN A50P Series fast-acting bolt-on fuse (MPN A50QS450-4) protects power electronic circuits from overcurrent. It is commonly applied in variable frequency drives, rectifiers, UPS systems, and other industrial equipment requiring reliable AC/DC protection at 500 V AC and 500 V DC.

What are the specifications of the MERSEN A50QS450-4 fuse?

The MERSEN A50QS450-4 is a fast-acting bolt-on fuse rated for 450 A at 500 V AC and 500 V DC. It belongs to the A50P Series, has an AC/DC voltage type, and is designed for semiconductor protection. The manufacturer part number is A50QS450-4.

Where to buy the MERSEN A50QS450-4 fuse worldwide?

3G Electric supplies the MERSEN A50QS450-4 fuse worldwide. As a global industrial equipment distributor, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time; we source and deliver this fast-acting bolt-on fuse to any country.

How to select the correct MERSEN A50P fuse for your application?

To select the correct MERSEN A50P fuse, match the voltage rating (500 V AC/DC) and current rating (450 A for the A50QS450-4) to your circuit requirements. Ensure the fast-acting characteristic suits semiconductor protection. Consult the fuse's I²t value and mounting style (bolt-on) for proper coordination with your equipment.

Used in

Common applications for MERSEN
Industrial control panels — Mersen USCC1 and USCC2 UL Class CC fuse blocks for DIN rail mounting and finger-safe branch circuit protection.
Motor starters — Mersen ATQ time-delay fuses and DAR0 R-rated fuses for motor overload and short-circuit protection.
Power supplies and instrumentation — Mersen GGM and GSB fast-acting cylindrical fuses for overcurrent protection in compact electronic circuits.
DC systems — Mersen A30QS very-fast-acting square fuses rated 300 V DC for semiconductor and DC equipment protection.
Medium-voltage distribution — Mersen DAR0 R-rated fuses rated 5.08 kV AC for general-purpose overcurrent protection with visual indication.
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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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