MERSEN A4BY400 Time-Delay Bolt-On Fuse, 400 A, 600 V AC, 300 V DC
The MERSEN A4BY Series Class L Time-Delay Bolt-On Fuse (MPN A4BY400) is a 400 A, 600 V AC, 300 V DC industrial fuse. This bolt-on body fuse offers time-delay characteristics for handling inrush currents.
SKU 3G-OTH-26712
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
Need installation or engineering help?
Ask a question
Product Description
The MERSEN A4BY Series Class L Time-Delay Bolt-On Fuse (MPN A4BY400) is a 400 A, 600 V AC, 300 V DC industrial fuse. This bolt-on body fuse offers time-delay characteristics for handling inrush currents.
Frequently Asked Questions
What is the MERSEN A4BY400 fuse used for?
The MERSEN A4BY400 is a Class L time-delay bolt-on fuse rated 400 A, 600 V AC, 300 V DC. It protects industrial circuits and equipment from overcurrents while tolerating harmless inrush currents, making it suitable for motor starters, transformers, and other inductive loads.
What are the specifications of the MERSEN A4BY400 fuse?
The MERSEN A4BY400 is a 400 A, 600 V AC, 300 V DC Class L time-delay bolt-on fuse from the A4BY series. It features a bolt-on body design for secure mounting and time-delay characteristics to handle inrush currents without nuisance opening.
Where to buy MERSEN A4BY400 fuse worldwide?
3G Electric supplies the MERSEN A4BY400 fuse worldwide. As a global industrial distributor, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time on this MERSEN A4BY series fuse.
How to select the correct MERSEN A4BY400 fuse for an application?
Select the MERSEN A4BY400 fuse by matching its 400 A rating, 600 V AC / 300 V DC voltage, and Class L time-delay characteristics to your circuit's continuous current and inrush requirements. Ensure the bolt-on body fits your fuse holder and that the interrupting rating meets system fault levels.
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.
