MERSEN A4BQ400 Time-Delay Bolt-On Fuse, 400 A, 600 V AC, 500 V DC
The MERSEN A4BQ Series Class L Time-Delay Bolt-On Fuse (MPN A4BQ400) is a 400 A, 600 V AC, 500 V DC industrial fuse with a bolt-on body. It provides time-delay overload protection for high-current circuits.
SKU 3G-OTH-27718
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
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Product Description
The MERSEN A4BQ Series Class L Time-Delay Bolt-On Fuse (MPN A4BQ400) is a 400 A, 600 V AC, 500 V DC industrial fuse with a bolt-on body. It provides time-delay overload protection for high-current circuits.
Frequently Asked Questions
What is the MERSEN A4BQ400 fuse used for?
The MERSEN A4BQ400 is a Class L time-delay bolt-on fuse rated 400 A, 600 V AC, and 500 V DC. It protects high-current industrial circuits, such as motor feeders, transformers, and main disconnects, by allowing temporary overloads without nuisance opening.
What are the specifications of the MERSEN A4BQ400 fuse?
The MERSEN A4BQ400 is a Class L, A4BQ Series, bolt-on body, time-delay fuse rated 400 A, 600 V AC, and 500 V DC. Its bolt-on design ensures secure mounting in high-current applications. The manufacturer part number is A4BQ400.
Where to buy the MERSEN A4BQ400 fuse worldwide?
You can source the MERSEN A4BQ400 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.
How to select the correct MERSEN A4BQ400 fuse for an application?
Select the MERSEN A4BQ400 fuse by matching its 400 A rating, 600 V AC or 500 V DC voltage, and Class L time-delay characteristics to your circuit's full-load current and inrush requirements. Ensure the bolt-on body fits your existing fuse holder or disconnect switch.
Used in
Common applications for MERSENMERSEN Products
3G Electric supplies MERSEN time-delay bolt-on fuses. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.
