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MERSEN FUSE L TD FUSE 600V 600A A4BQ A4BQ600
Reliable Class L time-delay fuse with 600A rating, suitable for heavy-duty industrial power distribution with high breaking capacity and blade terminals.
£620.14
Why Choose the Mersen A4BQ600 Class L Time-Delay Fuse?
The Mersen A4BQ600 is a high-performance Class L time-delay fuse designed to provide dependable overcurrent and short-circuit protection for industrial and commercial power distribution systems. As part of the trusted Mersen Amp-Trap 2000® A4BQ series, it delivers industry-leading current-limiting performance for service entrance equipment, switchgear, feeder circuits and other high-capacity electrical installations.
Featuring advanced Amp-Trap 2000® current-limiting technology, the A4BQ600 reduces damaging fault energy and provides superior protection for downstream equipment. Its built-in 4-second time-delay characteristic at 500% of rated current allows motors, transformers and other inductive loads to start normally without nuisance fuse operation, improving system reliability and reducing downtime.
Rated at 600 A with 600 V AC and 500 V DC voltage ratings, the A4BQ600 is ideal for demanding industrial power distribution applications requiring high interrupting capacity and reliable circuit protection.
Key Advantages
- Heavy-duty Class L time-delay fuse for industrial power distribution.
- 600 A current rating for high-capacity electrical systems.
- 600 V AC / 500 V DC voltage ratings.
- Advanced Amp-Trap 2000® current-limiting technology.
- 4-second time delay prevents nuisance operation during motor and transformer start-up.
- High interrupting capacity protects critical electrical equipment.
Key Features
- Mersen Amp-Trap 2000® A4BQ series.
- 600 A ampere rating.
- 600 V AC / 500 V DC rated voltage.
- Class L time-delay fuse.
- Current-limiting design reduces let-through current.
- 4-second minimum time delay at 500% rated current.
- Blade terminal construction.
- Suitable for service entrance, feeder and branch circuit protection.
Reliable Protection for Industrial Power Systems
The Mersen A4BQ600 is designed to protect electrical distribution systems against overloads and severe short-circuit currents while accommodating temporary inrush currents generated by motors, transformers and other inductive equipment. Its advanced current-limiting design helps minimise thermal and mechanical stress on downstream electrical components, improving system safety and extending equipment life.
As part of the trusted Amp-Trap 2000® product family, the A4BQ600 is widely specified for industrial and commercial power distribution systems where dependable overcurrent protection, high interrupting performance and operational reliability are essential.
Typical Applications
- Service entrance equipment.
- Industrial switchgear and switchboards.
- Main electrical distribution systems.
- Feeder circuits.
- Motor control centres.
- Transformer protection.
- Commercial and industrial electrical installations.
Technical Specifications
Tick the specs you need, then view products that match.
| Current | 600 A | |
|---|---|---|
| Voltage | 600 V | |
| Fuse Type | UL class | |
| Fuse Class | Time delay | |
| Item number | A4BQ600 | |
| Description | Fuse A4BQ - Class L - Time-Delay 600VAC 500VDC 600A Blade Amp-Trap 2000® | |
| EAN/UPC Code | 782001930714 | |
| Rated voltage AC UL | 600 V | |
| Rated voltage DC UL | 500 V | |
| Frequency (Hz) | 50/60 Hz | |
| Ampere Rating | 600 A | |
| AC or DC | AC/DC | |
| 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 | 50.8 mm | |
| Product Length | 219.2 mm | |
| Sell Pack Quantity | 1 EA | |
| Sell Pack Weight | 1.1612 kg | |
| Sell Pack Width | 53.8 mm | |
| Sell Pack Length | 53.8 mm | |
| Sell Pack Height | 223.8 mm | |
| Product group | Low Voltage UL/CSA Fuses | |
| Body/Insulating Material | GMG | |
| Product Weight | 1.1068 kg | |
| HS Code | 85361090 | |
| Country of Manufacture | Mexico |
Frequently Asked Questions
What is the Mersen A4BQ600 used for?
It provides overcurrent and short-circuit protection for industrial power distribution systems, service entrance equipment and feeder circuits.
What is the current rating of the A4BQ600?
The fuse has a 600 A current rating.
What voltage is the A4BQ600 rated for?
The fuse is rated for 600 V AC and 500 V DC operation.
Why does the fuse include a time-delay feature?
The integrated time-delay allows temporary motor and transformer inrush currents to pass without nuisance operation while maintaining reliable fault protection.
Where is the A4BQ600 typically installed?
It is commonly installed in service entrance equipment, switchgear, feeder circuits and industrial power distribution systems requiring Class L fuse protection.
Trusted for Industrial Circuit Protection
Mersen Amp-Trap 2000® Class L fuses are trusted worldwide by electrical engineers and industrial facilities for delivering dependable overcurrent protection, superior current limitation and reliable performance in critical power distribution systems.
