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MERSEN FUSE L TD FUSE 600V 1350A A4BQ A4BQ1350
The A4BQ1350 fuse delivers robust circuit protection with advanced time-delay technology, suitable for AC/DC applications up to 600VAC and 500VDC. It features a 1350A rating, blade terminals, and a breaking capacity of 200 kA.
£961.43
Why Choose the Mersen A4BQ1350 Class L Fuse?
The Mersen A4BQ1350 is a high-capacity Class L time-delay current-limiting fuse designed to protect industrial power distribution systems, service entrance equipment and high-current electrical installations against damaging overloads and short circuits. As part of the established Mersen Amp-Trap 2000 A4BQ series, it combines dependable time-delay performance with advanced current limitation for critical power applications.
Rated at 1350 A, 600 V AC and 500 V DC, the A4BQ1350 is engineered for electrical systems with substantial load and prospective fault currents. Its current-limiting construction reduces peak let-through current and fault energy, helping protect switchgear, busbars, cables, transformers and other downstream equipment from severe thermal and mechanical stress.
The fuse incorporates a controlled time-delay characteristic that allows temporary motor starting, transformer energisation and equipment inrush currents to pass without unnecessary operation. Its rejection-style Class L construction supports correct fuse selection and secure installation within compatible industrial fuse holders and distribution assemblies.
Key Advantages
- Heavy-duty Class L time-delay current-limiting fuse.
- 1350 A current rating for high-capacity electrical systems.
- 600 V AC and 500 V DC voltage ratings.
- High interrupting capacity for demanding fault-current environments.
- Time-delay performance accommodates temporary equipment inrush currents.
- Current-limiting operation reduces damaging thermal and mechanical energy.
Key Features
- Mersen Amp-Trap 2000 A4BQ series.
- 1350 A rated current.
- 600 V AC maximum voltage rating.
- 500 V DC maximum voltage rating.
- Class L rejection-style fuse construction.
- Time-delay characteristic for high-inrush electrical loads.
- Current-limiting protection for high fault-current systems.
- Bolted-blade terminals for secure industrial installation.
Reliable Protection for High-Power Distribution Systems
The Mersen A4BQ1350 interrupts excessive fault currents before they can reach their maximum prospective value. By limiting peak current and let-through energy, the fuse helps reduce equipment damage and the forces imposed on conductors, switchgear and other electrical distribution components.
Its time-delay performance allows normal temporary surges associated with motors, transformers and inductive equipment to pass without nuisance operation. This makes the A4BQ1350 suitable for critical industrial systems where reliable protection, system coordination and operational continuity are essential.
Typical Applications
- Industrial switchboards and distribution panels.
- Service entrance equipment and main feeder circuits.
- Motor control centres and high-current motor circuits.
- Transformer primary and secondary protection.
- Industrial disconnect switches.
- UPS systems, battery circuits and compatible DC equipment.
Technical Specifications
Tick the specs you need, then view products that match.
| Current | 1350 A | |
|---|---|---|
| Voltage | 600 V | |
| Fuse Type | UL class | |
| Fuse Class | Time delay | |
| Item number | A4BQ1350 | |
| Description | Fuse A4BQ - Class L - Time-Delay 600VAC 500VDC 1350A Blade Amp-Trap 2000® | |
| EAN/UPC Code | 782001930073 | |
| Rated voltage AC UL | 600 V | |
| Rated voltage DC UL | 500 V | |
| Frequency (Hz) | 50/60 Hz | |
| Ampere Rating | 1350 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 A4BQ1350 used for?
The Mersen A4BQ1350 protects high-current industrial power distribution systems, service entrance equipment, feeders, transformers and motor circuits against overloads and short circuits.
What is the current rating of the A4BQ1350?
The fuse has a rated current of 1350 A.
What voltage is the A4BQ1350 rated for?
The A4BQ1350 is rated for electrical systems operating at up to 600 V AC or 500 V DC.
Why does the A4BQ1350 have a time delay?
The time-delay characteristic permits temporary inrush currents from motors, transformers and other inductive loads without unnecessary fuse operation.
Which fuse holder is required for the A4BQ1350?
The fuse must be installed in a compatible 1350 A Class L fuse holder with voltage and interrupting ratings suitable for the electrical system.
Trusted Industrial Circuit Protection
Mersen Amp-Trap 2000 Class L fuses are widely specified by electrical engineers, panel builders and industrial facilities for reliable protection of high-capacity power distribution systems.
