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MERSEN FUSE L TD FUSE 600V 1600A A4BQ A4BQ1600
The A4BQ1600 offers robust protection for high-capacity industrial circuits, supporting up to 1600A with reliable time-delay performance. Designed for both AC (600VAC) and DC (500VDC) applications, it ensures dependable operation in critical power distribution systems.
£961.43
Why Choose the Mersen A4BQ1600 Class L Fuse?
The Mersen A4BQ1600 is a high-capacity Class L time-delay current-limiting fuse designed to protect industrial power distribution systems, service entrance equipment and heavy-duty electrical installations against overloads and short circuits. As part of the proven Mersen Amp-Trap 2000 A4BQ series, it combines advanced current-limiting technology with a controlled time-delay characteristic to deliver dependable protection in demanding industrial environments.
Rated at 1600 A, 600 V AC and 500 V DC, the A4BQ1600 is engineered for high-power applications with substantial available fault currents. Its current-limiting construction reduces peak let-through current and fault energy, helping protect switchgear, transformers, busbars, conductors and downstream equipment from thermal and mechanical damage.
The built-in 4-second time-delay characteristic allows harmless inrush currents associated with motors, transformers and inductive equipment to pass without nuisance operation while maintaining rapid interruption of sustained overloads and short-circuit faults. Its rejection-style Class L design helps ensure correct fuse replacement and safe installation.
Key Advantages
- Heavy-duty Class L time-delay current-limiting fuse.
- 1600 A current rating for high-capacity industrial systems.
- 600 V AC and 500 V DC voltage ratings.
- High interrupting capacity for demanding fault-current applications.
- Built-in 4-second time-delay reduces nuisance fuse operation.
- Current-limiting performance helps minimise damaging fault energy.
Key Features
- Mersen Amp-Trap 2000 A4BQ series.
- 1600 A rated current.
- 600 V AC maximum voltage rating.
- 500 V DC maximum voltage rating.
- Class L rejection-style fuse construction.
- 4-second time-delay at 500% rated current.
- Current-limiting design for superior equipment protection.
- Bolted-blade terminals for secure installation.
Reliable Protection for High-Power Distribution Systems
The Mersen A4BQ1600 rapidly interrupts damaging fault currents before they reach their maximum prospective value. By limiting peak current and let-through energy, it helps protect expensive electrical infrastructure while improving system reliability and reducing maintenance costs.
Its time-delay operation allows temporary inrush currents from motors and transformers to pass normally, making it well suited to service entrance equipment, feeder circuits and other industrial applications where selective coordination and operational continuity are essential.
Typical Applications
- Industrial switchboards.
- Service entrance equipment.
- Main distribution and feeder circuits.
- Motor control centres.
- Transformer protection.
- Heavy industrial power distribution systems.
Technical Specifications
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| Current | 1600 A | |
|---|---|---|
| Voltage | 600 V | |
| Fuse Type | UL class | |
| Fuse Class | Time delay | |
| Item number | A4BQ1600 | |
| Description | Fuse A4BQ - Class L - Time-Delay 600VAC 500VDC 1600A Blade Amp-Trap 2000® | |
| EAN/UPC Code | 782001939403 | |
| Rated voltage AC UL | 600 V | |
| Rated voltage DC UL | 500 V | |
| Frequency (Hz) | 50/60 Hz | |
| Ampere Rating | 1600 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 | 76.2 mm | |
| Product Length | 273 mm | |
| Sell Pack Quantity | 1 EA | |
| Sell Pack Weight | 2.844 kg | |
| Sell Pack Width | 88.9 mm | |
| Sell Pack Length | 279.4 mm | |
| Sell Pack Height | 82.6 mm | |
| Product group | Low Voltage UL/CSA Fuses | |
| Body/Insulating Material | GMG | |
| Product Weight | 2.7079 kg | |
| HS Code | 85361090 | |
| Country of Manufacture | Mexico |
Frequently Asked Questions
What is the Mersen A4BQ1600 used for?
The Mersen A4BQ1600 protects high-current industrial power distribution systems, transformers, feeder circuits and service entrance equipment against overloads and short circuits.
What is the current rating of the A4BQ1600?
The fuse has a rated current of 1600 A.
What voltage is the A4BQ1600 rated for?
The A4BQ1600 is rated for applications operating at up to 600 V AC and 500 V DC.
Why does the A4BQ1600 include a time-delay characteristic?
The 4-second time-delay allows temporary motor and transformer inrush currents to pass without nuisance fuse operation while maintaining protection against sustained overloads and short circuits.
Which fuse holder is required for the A4BQ1600?
The fuse must be installed in a compatible 1600 A Class L fuse holder with appropriate voltage and interrupting ratings.
Trusted Industrial Circuit Protection
Mersen Amp-Trap 2000 Class L fuses are trusted worldwide by electrical engineers and industrial facilities for dependable protection of critical high-capacity electrical distribution systems.
