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MERSEN A70QS250-4IL Fast-Acting Bolt-On Fuse, 250 A, 700 V AC/DC, Indicating - Fast-Acting Bolt-On Fuses
MERSENFast-Acting Bolt-On Fuses

MERSEN A70QS250-4IL Fast-Acting Bolt-On Fuse, 250 A, 700 V AC/DC, Indicating

The MERSEN A70QS Series is a fast-acting bolt-on semiconductor fuse, model A70QS250-4IL, rated at 250 A and 700 V AC/DC. This indicating fuse is designed for AC/DC voltage types and is part of the A70QS series from…

SKU 3G-OTH-27442

Also listed as: A70QS2504IL · A70QS250 4IL

Brand
MERSEN
Item
A70QS250-4IL Fast-Acting Bolt-On Fuse, 250 A, 700 V AC/DC, Indicating
Part Number
A70QS250-4IL
Category
Fast-Acting Bolt-On Fuses
Available to Order
Also known as:A70QS250-4ILMERSEN
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Technical Specifications

MERSEN
Manufacturer Part Number
A70QS250-4IL
Series
A70QS
Type
Fast-Acting, 250 A, Indicating
AC
700 V
Voltage Type
AC/DC
DC DC Volt Rating
700 V

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

Product Description

The MERSEN A70QS Series is a fast-acting bolt-on semiconductor fuse, model A70QS250-4IL, rated at 250 A and 700 V AC/DC. This indicating fuse is designed for AC/DC voltage types and is part of the A70QS series from MERSEN.

Frequently Asked Questions

What is the MERSEN A70QS250-4IL semiconductor fuse used for?

The MERSEN A70QS250-4IL is a fast-acting bolt-on fuse used to protect power semiconductors such as diodes, thyristors, and IGBTs in industrial drives, UPS systems, and power conversion equipment. Its 250 A rating and 700 V AC/DC capability make it suitable for high-power DC bus and AC inverter applications.

What are the specifications of the MERSEN A70QS250-4IL fuse?

The MERSEN A70QS250-4IL is a fast-acting indicating fuse from the A70QS series. It is rated at 250 A with a voltage rating of 700 V AC and 700 V DC. The fuse features a bolt-on mounting style and is designed for AC/DC voltage types. The manufacturer part number is A70QS250-4IL.

Where to buy the MERSEN A70QS250-4IL fuse worldwide?

3G Electric supplies the MERSEN A70QS250-4IL fuse worldwide. As a global industrial equipment distributor established in 1990, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time on this fast-acting semiconductor fuse.

How to select the correct MERSEN A70QS250-4IL fuse for an application?

To select the MERSEN A70QS250-4IL, verify that your circuit's continuous current does not exceed 250 A and that the system voltage is within 700 V AC or 700 V DC. Ensure the bolt-on mounting matches your fuse holder. This fast-acting indicating fuse is designed for semiconductor protection; consult MERSEN application notes for coordination.

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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