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MERSEN FUSE L TD FUSE 600V 3500A A4BQ A4BQ3500
Engineered for robust protection in demanding industrial applications, the Fuse A4BQ3500 provides reliable time-delay performance, ensuring superior safeguarding of critical circuits against overloads and short circuits. Its Class L rating and 600VAC, 3500A capacity make it ideal for main and feeder circuit protection in high-capacity power distribution systems.
£2,471.71
Why Choose the Mersen A4BQ3500 Class L Time-Delay Fuse?
The Mersen A4BQ3500 is a heavy-duty Class L time-delay fuse engineered to provide exceptional overcurrent and short circuit protection for high-capacity industrial power distribution systems. As part of the trusted Amp-Trap 2000® A4BQ series, it is designed to protect service entrance equipment, switchgear, feeders and other high-current electrical installations where dependable fault protection is essential.
Featuring Mersen's advanced Amp-Trap 2000® current-limiting technology, the A4BQ3500 significantly reduces fault energy while protecting downstream equipment from damaging short circuit currents. Its integrated 4-second time-delay characteristic at 500% of rated current accommodates normal motor and transformer inrush currents, reducing nuisance fuse operation while maintaining superior protection.
Rated at 3500 A with a 600 V AC voltage rating, the A4BQ3500 is ideally suited for utility, commercial and industrial electrical systems requiring high interrupting capacity and reliable circuit protection in demanding environments.
Key Advantages
- Heavy-duty Class L time-delay fuse for industrial power distribution.
- 3500 A current rating for very high-capacity electrical systems.
- 600 V AC rated voltage for industrial installations.
- Advanced Amp-Trap 2000® current-limiting technology.
- 4-second time-delay helps prevent nuisance operation during equipment start-up.
- Provides outstanding protection for service entrance equipment and switchgear.
Key Features
- Mersen Amp-Trap 2000® A4BQ series.
- 3500 A ampere rating.
- 600 V AC voltage rating.
- Class L time-delay fuse.
- Current-limiting design reduces let-through current during faults.
- Blade mounting configuration.
- 50 / 60 Hz operation.
- Designed for service entrance, feeder and main distribution protection.
Reliable Protection for High-Current Electrical Systems
The Mersen A4BQ3500 is designed to protect critical electrical infrastructure against overloads and high fault currents while allowing temporary inrush currents associated with large motors, transformers and other inductive loads. Its advanced current-limiting performance reduces thermal and mechanical stress on downstream equipment, improving system reliability and safety.
As part of the proven Amp-Trap 2000® product family, the A4BQ3500 is widely used in demanding industrial and commercial installations where dependable protection, high interrupting capacity and long service life are essential.
Typical Applications
- Service entrance equipment.
- Industrial switchgear.
- Main power distribution systems.
- Feeder circuits.
- Large motor control installations.
- Heavy industrial and utility electrical systems.
Technical Specifications
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| Current | 3500 A | |
|---|---|---|
| Voltage | 600 V | |
| Fuse Type | UL class | |
| Fuse Class | Time delay | |
| Item number | A4BQ3500 | |
| Description | Fuse A4BQ - Class L - Time-Delay 600VAC 3500A Blade Amp-Trap 2000® | |
| EAN/UPC Code | 782001930158 | |
| Rated voltage AC UL | 600 V | |
| Frequency (Hz) | 50/60 Hz | |
| Ampere Rating | 3500 A | |
| AC or DC | AC | |
| Fuse Class | Class L | |
| Speed/Characteristic | Time Delay | |
| Mounting | Bolted | |
| AC Max I.R./Breaking Capacity | I1: 200 kA | |
| Connection/Terminal Material | Silver-Plated Copper | |
| Connection/Terminal Type | Blade | |
| Product Diameter | 146 mm | |
| Product Length | 273 mm | |
| Sell Pack Quantity | 1 EA | |
| Sell Pack Weight | 1.1929 kg | |
| Sell Pack Width | 152.4 mm | |
| Sell Pack Length | 298.4 mm | |
| Sell Pack Height | 146 mm | |
| Product group | Low Voltage UL/CSA Fuses | |
| Body/Insulating Material | GMG | |
| Product Weight | 1.134 kg | |
| HS Code | 85361090 | |
| Country of Manufacture | Mexico |
Frequently Asked Questions
What is the Mersen A4BQ3500 used for?
It provides overcurrent and short circuit protection for high-capacity industrial electrical distribution systems, service entrance equipment and feeder circuits.
What is the current rating of the A4BQ3500?
The fuse has a 3500 A current rating.
What voltage is the A4BQ3500 rated for?
The fuse is designed for operation on 600 V AC electrical systems.
Why does the fuse include a time-delay feature?
The built-in time-delay allows temporary motor and transformer inrush currents to pass without unnecessary fuse operation while maintaining excellent fault protection.
Where is the A4BQ3500 typically installed?
It is commonly installed in service entrance equipment, switchgear, feeder circuits and other high-current industrial power distribution applications.
Trusted for Industrial Power Protection
Mersen Amp-Trap 2000® Class L fuses are trusted worldwide by electrical engineers and industrial facilities to deliver reliable overcurrent protection, high interrupting performance and dependable operation in critical power distribution systems.
