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MERSEN A70QS800-4IL Fast-Acting Bolt-On Fuse, 800 A, 700 V AC/DC, Indicating - Fast-Acting Bolt-On Fuses
MERSENFast-Acting Bolt-On Fuses

MERSEN A70QS800-4IL Fast-Acting Bolt-On Fuse, 800 A, 700 V AC/DC, Indicating

The MERSEN A70QS Series A70QS800-4IL is a fast-acting bolt-on fuse rated for 800 A at 700 V AC and 700 V DC. This indicating fuse is designed for overcurrent protection in industrial equipment.

SKU 3G-OTH-27209

Also listed as: A70QS8004IL · A70QS800 4IL

Brand
MERSEN
Item
A70QS800-4IL Fast-Acting Bolt-On Fuse, 800 A, 700 V AC/DC, Indicating
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
A70QS800-4IL
Series
A70QS
Voltage Type
AC/DC

Technical Documents

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

Product Description

The MERSEN A70QS Series A70QS800-4IL is a fast-acting bolt-on fuse rated for 800 A at 700 V AC and 700 V DC. This indicating fuse is designed for overcurrent protection in industrial equipment.

Frequently Asked Questions

What is the MERSEN A70QS800-4IL fuse used for?

The MERSEN A70QS800-4IL is a fast-acting bolt-on fuse used for overcurrent protection in industrial equipment. It is rated for 800 A at 700 V AC and 700 V DC, making it suitable for high-power DC drives, power supplies, and other heavy machinery requiring reliable short-circuit protection.

What are the specifications of the MERSEN A70QS800-4IL?

The MERSEN A70QS800-4IL is part of the A70QS Series, rated for 800 A at 700 V AC and 700 V DC. It is a fast-acting, indicating bolt-on fuse with an AC/DC voltage type. The manufacturer part number is A70QS800-4IL, and it is designed for overcurrent protection in industrial applications.

Where to buy the MERSEN A70QS800-4IL worldwide?

You can source the MERSEN A70QS800-4IL through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide locations. Contact us for availability and lead time; we provide competitive pricing and reliable sourcing for this MERSEN fuse.

How to select the correct MERSEN A70QS800-4IL fuse for an application?

To select the MERSEN A70QS800-4IL, verify your system's voltage (700 V AC or DC) and continuous current (800 A). Ensure the fuse is fast-acting for semiconductor protection. Check the indicating feature for blown-fuse detection. Always consult the equipment manual and follow NEC or local codes for proper coordination.

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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Cross-referenced by specification & description
Fast-acting bolt-on fuse from the A70QS series, rated 80 A at 700 V AC and 700 V DC. Features an indicating design for visual identification of a blown fuse. Used for overcurrent protection in power semiconductor circuits and DC drives
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Fast-acting bolt-on fuse from the A70QS series, rated 40 A, 690 V AC, and 700 V DC. Provides overcurrent protection for power electronic circuits such as variable frequency drives, rectifiers, and UPS systems

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