MERSEN A4BQ900 Class L Time-Delay Bolt-On Fuse, 900 A, 600 V AC, 500 V DC
The MERSEN A4BQ Series Class L Time-Delay Bolt-On Fuse (MPN A4BQ900) is a 900 A, 600 V AC, 500 V DC industrial fuse. It features a bolt-on body and time-delay operation for overcurrent protection.
SKU 3G-OTH-27669
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 A4BQ900) is a 900 A, 600 V AC, 500 V DC industrial fuse. It features a bolt-on body and time-delay operation for overcurrent protection.
Frequently Asked Questions
What is the MERSEN A4BQ900 fuse used for?
The MERSEN A4BQ900 is a 900 A, 600 V AC, 500 V DC Class L time-delay bolt-on fuse used for overcurrent protection in industrial power distribution, motor circuits, and feeder applications. Its time-delay characteristic allows it to withstand temporary inrush currents without nuisance opening.
What are the specifications of the MERSEN A4BQ900 fuse?
The MERSEN A4BQ900 is a Class L, A4BQ Series, bolt-on body, time-delay fuse rated 900 A, 600 V AC, and 500 V DC. The manufacturer part number is A4BQ900. It provides reliable overcurrent protection in high-current industrial circuits.
Where to buy MERSEN A4BQ900 fuses worldwide?
3G Electric supplies the MERSEN A4BQ900 fuse worldwide. As a global industrial equipment distributor since 1990, we handle full logistics, customs clearance, and delivery to your site. Contact us for availability and lead time on this Class L time-delay bolt-on fuse.
How to select the right MERSEN A4BQ900 fuse for an application?
To select the MERSEN A4BQ900, verify your system voltage does not exceed 600 V AC or 500 V DC, and the continuous load current is at or below 900 A. The time-delay feature suits motor or transformer circuits with high inrush. Always consult the manufacturer's data sheet for coordination and interrupting rating.
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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.
