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MERSEN FUSE 300V 1A T FUSE A3T1
Fast-acting Class T blade fuse rated for 300VAC and 160VDC with 1000A ampere rating and 200 kA breaking capacity. Features Amp-Trap® technology and copper blade terminals for reliable circuit protection.
£17.61
Why Choose the Mersen A3T1 Amp-Trap Class T Fuse?
The Mersen A3T1 is a compact, fast-acting Class T current-limiting fuse designed to protect electrical circuits and equipment against damaging short circuits and overcurrent conditions. As part of the established Mersen Amp-Trap® A3T series, it combines rapid fault interruption with a high breaking capacity for dependable protection in industrial and commercial power systems.
This fuse offers excellent current-limiting performance, reducing the peak current and energy that pass through a circuit during a fault. Its compact cartridge design enables high-performance protection to be installed where panel space is limited, while its rejection-style dimensions help prevent the use of unsuitable fuse classes in compatible holders.
With a rated current of 1 A, a maximum voltage rating of 300 V AC and a 160 V DC rating, the Mersen A3T1 is suitable for control circuits, power distribution equipment, industrial machinery and electrical panels requiring fast and reliable circuit protection.
Key Advantages
- Compact Class T current-limiting fuse for industrial circuit protection.
- 1 A rated current for low-current electrical circuits.
- 300 V AC and 160 V DC voltage ratings.
- Fast-acting operation provides rapid protection against fault currents.
- High interrupting capacity supports safe use in systems with substantial available fault current.
- Current-limiting performance reduces thermal and mechanical stress on equipment.
Key Features
- Mersen Amp-Trap® A3T series.
- UL Class T fuse design.
- 1 A rated current.
- 300 V AC maximum voltage rating.
- 160 V DC voltage rating.
- Fast-acting, current-limiting operating characteristic.
- Compact cartridge construction for space-efficient installation.
- Suitable for installation in compatible Class T fuse holders.
Reliable Current-Limiting Circuit Protection
Current-limiting fuses such as the Mersen A3T1 interrupt severe fault currents before they reach their maximum prospective value. This reduces the electrical, thermal and mechanical forces placed on cables, control components and connected equipment during a short circuit.
The compact Class T format provides a high interrupting capacity in a relatively small enclosure. This makes the A3T series particularly useful for control panels, distribution assemblies and industrial equipment where dependable fault protection and efficient use of installation space are essential.
Typical Applications
- Industrial machinery and automation equipment.
- Electrical control panels.
- Power distribution systems.
- Control transformers and auxiliary circuits.
- Lighting and heating control equipment.
- Power conversion and rectifier equipment.
- Commercial and industrial electrical installations.
Technical Specifications
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| Current | 1 A | |
|---|---|---|
| Voltage | 300 V | |
| Fuse Type | UL class | |
| Fuse Class | Fast acting | |
| Item number | A3T1000 | |
| Description | Fuse A3T - Class T - Fast-Acting 300VAC 160VDC 1000A Blade Amp-Trap® | |
| EAN/UPC Code | 782001890834 | |
| Rated voltage AC UL | 300 V | |
| Rated voltage DC UL | 160 V | |
| Frequency (Hz) | 50/60 Hz | |
| Ampere Rating | 1000 A | |
| AC or DC | AC/DC | |
| Fuse Class | Class T | |
| Speed/Characteristic | Fast-Acting | |
| Mounting | Bolted | |
| AC Max I.R./Breaking Capacity | I1: 200 kA | |
| Connection/Terminal Material | Copper | |
| Connection/Terminal Type | Blade | |
| Product Diameter | 64 mm | |
| Product Length | 101.6 mm | |
| Sell Pack Quantity | 1 EA | |
| Sell Pack Weight | 0.6895 kg | |
| Sell Pack Width | 65 mm | |
| Sell Pack Length | 71.4 mm | |
| Sell Pack Height | 125.5 mm | |
| Product group | Low Voltage UL/CSA Fuses | |
| Body/Insulating Material | GMG | |
| Product Weight | 0.6577 kg | |
| HS Code | 85361010 | |
| Country of Manufacture | Mexico |
Frequently Asked Questions
What is the Mersen A3T1 used for?
The Mersen A3T1 is used to protect industrial and commercial electrical circuits against short circuits and excessive overcurrent conditions.
What is the current rating of the Mersen A3T1?
The fuse has a rated current of 1 A.
What voltage is the A3T1 rated for?
The Mersen A3T1 is rated for systems operating at up to 300 V AC or 160 V DC.
Is the Mersen A3T1 a fast-acting fuse?
Yes. The A3T1 has a fast-acting, current-limiting characteristic designed to interrupt damaging fault currents rapidly.
Where is the Mersen A3T1 typically installed?
It is typically installed in a compatible Class T fuse holder within control panels, industrial machinery, distribution equipment and power conversion systems.
Trusted by Electrical Professionals Worldwide
Mersen Amp-Trap® Class T fuses are widely specified by electrical engineers, panel builders and equipment manufacturers for compact, high-capacity protection of critical industrial circuits.
