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MERSEN FUSE 300V 225A T FUSE A3T225
Fast-acting Class T blade fuse rated for 300VAC and 160VDC at 225A with a breaking capacity of 200 kA, featuring bolted mounting and copper blade terminals.
£87.72
Why Choose the Mersen A3T225 Class T Fuse?
The Mersen A3T225 is a high-performance 225 A Class T current-limiting fuse designed to protect electrical distribution equipment, industrial machinery and high-capacity power circuits against damaging short circuits and overcurrents. Part of the trusted Mersen Amp-Trap 2000 A3T series, this compact fuse delivers rapid fault interruption and dependable protection in installations where available fault currents are high.
Its fast-acting performance helps limit the amount of damaging energy that reaches conductors and connected equipment during a fault. The A3T225 combines a compact Class T footprint with a high interrupting capacity, making it particularly useful where panel space is limited without compromising circuit protection.
With a rated current of 225 A and a voltage rating of up to 300 V AC, the Mersen A3T225 is suitable for feeders, disconnect switches, power distribution panels and industrial equipment. Its blade-style terminals provide a secure connection when installed in a compatible Class T fuse holder or fuse block.
Key Advantages
- Compact Class T fuse designed for high-fault-current applications.
- 225 A current rating for industrial power and distribution circuits.
- 300 V AC voltage rating for low-voltage electrical systems.
- Current-limiting operation helps reduce thermal and mechanical fault damage.
- High interrupting capacity provides reliable protection against severe short circuits.
- Fast-acting response supports effective protection of conductors and equipment.
Key Features
- Mersen Amp-Trap 2000 A3T series.
- 225 A rated current.
- 300 V AC rated voltage.
- Class T current-limiting fuse construction.
- Fast-acting overcurrent protection.
- High interrupting rating for demanding electrical installations.
- Compact body reduces required panel and enclosure space.
- Blade-style terminals for installation in compatible fuse holders.
Reliable Protection for High-Current Circuits
Current-limiting fuses such as the Mersen A3T225 interrupt severe fault currents before they can reach their maximum prospective value. This reduces the let-through current and energy imposed on cables, busbars, switches and connected equipment.
The compact Class T format makes the A3T225 well suited to installations where available enclosure space is restricted. Its high interrupting capability and fast response help engineers create dependable protection systems for industrial and commercial electrical equipment.
Typical Applications
- Industrial power distribution panels.
- Electrical disconnect switches.
- Feeder and branch circuit protection.
- Motor control centres and industrial machinery.
- Commercial electrical distribution equipment.
- Battery systems and compatible DC power applications.
Technical Specifications
Tick the specs you need, then view products that match.
| Current | 225 A | |
|---|---|---|
| Voltage | 300 V | |
| Fuse Type | UL class | |
| Fuse Class | Fast acting | |
| Item number | A3T225 | |
| Description | Fuse A3T - Class T - Fast-Acting 300VAC 160VDC 225A Blade Amp-Trap® | |
| EAN/UPC Code | 782001890247 | |
| Rated voltage AC UL | 300 V | |
| Rated voltage DC UL | 160 V | |
| Frequency (Hz) | 50/60 Hz | |
| Ampere Rating | 225 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 | 33.8 mm | |
| Product Length | 69.8 mm | |
| Sell Pack Quantity | 1 EA | |
| Sell Pack Weight | 0.1315 kg | |
| Sell Pack Width | 35.1 mm | |
| Sell Pack Length | 35.1 mm | |
| Sell Pack Height | 73.2 mm | |
| Product group | Low Voltage UL/CSA Fuses | |
| Body/Insulating Material | GMG | |
| Product Weight | 0.1234 kg | |
| HS Code | 85361090 | |
| Country of Manufacture | Mexico |
Frequently Asked Questions
What is the Mersen A3T225 used for?
The Mersen A3T225 is used to protect high-current electrical circuits, distribution equipment and industrial machinery against short circuits and excessive current.
What is the current rating of the A3T225?
The fuse has a rated current of 225 A.
What voltage is the Mersen A3T225 rated for?
The A3T225 is rated for electrical systems operating at up to 300 V AC.
Is the A3T225 a current-limiting fuse?
Yes. The A3T225 is a Class T current-limiting fuse designed to reduce the peak current and energy passed through the circuit during a serious fault.
Which fuse holder should be used with the A3T225?
The fuse should be installed in a Class T fuse holder or fuse block that is specifically rated for a 225 A fuse and the applicable system voltage.
Trusted Industrial Circuit Protection
Mersen Amp-Trap Class T fuses are widely used by electrical engineers, panel builders and maintenance professionals for compact, reliable protection of high-current industrial and commercial power circuits.
