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MERSEN A70QS450-4K Fast-Acting Bolt-On Fuse, 450 A, 700 V AC/DC, Non-Indicating - Fast-Acting Bolt-On Fuses
MERSENFast-Acting Bolt-On Fuses

MERSEN A70QS450-4K Fast-Acting Bolt-On Fuse, 450 A, 700 V AC/DC, Non-Indicating

The MERSEN A70QS Series A70QS450-4K is a fast-acting bolt-on fuse rated for 450 A at 700 V AC and 700 V DC. This non-indicating fuse is designed for AC/DC voltage applications.

SKU 3G-OTH-27189

Also listed as: A70QS4504K · A70QS450 4K

Brand
MERSEN
Item
A70QS450-4K Fast-Acting Bolt-On Fuse, 450 A, 700 V AC/DC, Non-Indicating
Category
Fast-Acting Bolt-On Fuses
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Local availability & support — the Philippines

Delivery
5–8 business days door-to-door; Bureau of Customs clearance typically 2–4 business days.
Payment
Invoicing in PHP or USD. Bank transfer and corporate PO accepted.
Ships to
Manila, Quezon City, Cebu, Davao, Batangas

Technical Specifications

MERSEN
Manufacturer Part Number
A70QS450-4K
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 A70QS450-4K is a fast-acting bolt-on fuse rated for 450 A at 700 V AC and 700 V DC. This non-indicating fuse is designed for AC/DC voltage applications.

Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.

Frequently Asked Questions

What is the MERSEN A70QS450-4K fuse used for?

The MERSEN A70QS450-4K is a fast-acting bolt-on fuse used for overcurrent protection in AC/DC power systems. It is commonly applied in industrial equipment, motor drives, and power supplies where high current ratings up to 450 A and voltage ratings of 700 V AC/DC are required.

What are the specifications of the MERSEN A70QS450-4K fuse?

The MERSEN A70QS450-4K is part of the A70QS series, rated for 450 A at 700 V AC and 700 V DC. It is a non-indicating, fast-acting bolt-on fuse designed for AC/DC voltage applications. The manufacturer part number is A70QS450-4K.

Where to buy the MERSEN A70QS450-4K fuse worldwide?

You can source the MERSEN A70QS450-4K 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 on this fast-acting bolt-on fuse.

How to select the correct MERSEN A70QS450-4K fuse for an application?

To select the correct MERSEN A70QS450-4K fuse, verify your system's voltage type (AC/DC) and ensure the voltage rating does not exceed 700 V. The continuous current rating must be 450 A or less. Confirm the fuse is fast-acting and bolt-on style for proper mounting and protection 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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Fast-acting bolt-on fuse from the A70QS series, rated 50 A, 690 V AC, and 700 V DC. Provides overcurrent protection for power electronic circuits such as variable frequency drives, rectifiers, and UPS systems. Designed for AC/DC applications to safeguard sensitive semiconductor devices

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