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MERSEN Semiconductor Fuse: A50P Series, Fast-Acting, 80 A, 500 V AC - Fast-Acting Bolt-On Fuses
MERSENFast-Acting Bolt-On Fuses

MERSEN Semiconductor Fuse: A50P Series, Fast-Acting, 80 A, 500 V AC

The MERSEN A50P Series Semiconductor Fuse (MPN A50QS80-4) is a fast-acting bolt-on fuse rated at 80 A and 500 V AC/DC. This AC/DC voltage type fuse is designed for semiconductor protection applications.

SKU 3G-OTH-25414

Also listed as: A50QS804 · A50QS80 4

Brand
MERSEN
Item
Semiconductor Fuse: A50P Series, Fast-Acting, 80 A, 500 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
A50QS80-4
Series
A50P
Type
Fast-Acting, 80 A
AC
500 V
Voltage Type
AC/DC
DC DC Volt Rating
500 V

Technical Documents

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

Product Description

The MERSEN A50P Series Semiconductor Fuse (MPN A50QS80-4) is a fast-acting bolt-on fuse rated at 80 A and 500 V AC/DC. This AC/DC voltage type fuse is designed for semiconductor protection applications.

Frequently Asked Questions

What is the MERSEN A50QS80-4 semiconductor fuse used for?

The MERSEN A50QS80-4 is a fast-acting bolt-on fuse designed to protect semiconductor devices such as diodes, thyristors, and IGBTs from overcurrent faults. It is commonly used in power supplies, drives, and industrial electronics where rapid interruption of high fault currents is required to prevent damage to sensitive components.

What are the specifications of the MERSEN A50P series fuse?

The MERSEN A50P series fuse, model A50QS80-4, is rated at 80 A with a voltage rating of 500 V AC and 500 V DC. It is a fast-acting bolt-on fuse with an AC/DC voltage type. The series is designed for semiconductor protection and features a compact bolt-on mounting style for secure installation in industrial equipment.

Where to buy the MERSEN A50QS80-4 fuse worldwide?

You can source the MERSEN A50QS80-4 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 semiconductor protection applications.

How to select the correct MERSEN A50P fuse for a circuit?

To select the correct MERSEN A50P fuse, match the continuous current rating (80 A for the A50QS80-4) to the circuit's normal load, and ensure the voltage rating (500 V AC/DC) exceeds the system voltage. Consider the fuse's fast-acting characteristic for semiconductor protection, and verify bolt-on mounting compatibility with your fuse holder or panel.

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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