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HOBUT Moulded Case Current Transformer 120A 5A Secondary 40mm Bore CT173
Specifications
| Country of Origin | United Kingdom |
|---|---|
| Brand | HOBUT |
| Length | 95mm |
| Model | CT173 |
| Depth | 55mm |
| Width | 70mm |
| Mount Type | Base |
| Series | CT173 |
| Minimum Operating Temperature | 85°C |
| Bore Diameter | 40mm |
| Secondary current | 5A |
| Primary Current | 120A |
| RS PRO Current Transformer 125 A 21mm BoreBrand | RS PRO |
Key Features
- Constructed as a moulded case current transformer with base mounting feet.
- 120 ampere primary current and 5 ampere secondary current rating.
- 40mm bore diameter suitable for circular conductors up to 24mm aperture.
- Power consumption of 2.5VA operating at 50/60 Hz frequency.
- Accuracy class of 120 ensuring reliable measurement and protection.
- Busbar mounting compatibility up to 30x10 mm.
- Secondary terminals M5 studs with lock washers, nuts, and terminal covers.
- Protection rating IP54 for dust and water resistance.
Product Description
HOBUT CT173 series current transformer model CT173M120/5-2.5/1-002 is a moulded case current transformer designed for measuring and protecting electrical circuits in industrial, process control, and automation environments. It offers a primary current rating of 120A and a stable secondary output current of 5A, with an aperture bore diameter of 40mm suitable for circular conductors and busbar applications. The unit consumes 2.5VA power at 50/60 Hz and features an accuracy class of 120, ensuring precise current measurement necessary for control and protection.
Constructed for durability and reliability, this current transformer supports busbar mounting up to 30x10mm and has a maximum operating temperature of 85°C. It comes with M5 stud secondary terminals complete with lock washers, nuts, and terminal covers to ensure secure electrical connections. The device offers a protection rating to IP54 against dust and water ingress, making it suitable for demanding industrial environments.
The model conforms to international standards such as IEC 61869-2, IEC 60044-1, BS 7626, IEC 185, and BS EN 60044-1, and is manufactured under strict ISO 9001 quality management systems in the United Kingdom. It includes base mounting feet and captive nuts for easy installation.
Constructed as a moulded case current transformer with base mounting feet. 120 ampere primary current and 5 ampere secondary current rating. 40mm bore diameter suitable for circular conductors up to 24mm aperture. Power consumption of 2.5VA operating at 50/60 Hz frequency.
Accuracy class of 120 ensuring reliable measurement and protection. Busbar mounting compatibility up to 30x10 mm. Operating temperature range: -30°C to +85°C. Secondary terminals M5 studs with lock washers, nuts, and terminal covers.
Protection rating IP54 for dust and water resistance. Compliance to IEC and BS standards with ISO 9001 certification.
This current transformer is ideal for use in electrical automation, industrial control systems, HVAC, manufacturing process monitoring, and power distribution network protection. It provides precise current sensing to enhance system reliability and safety.
Explore more official HOBUT Current Transformers and automation components on EnvMart for comprehensive industrial electrical solutions.
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Frequently Asked Questions
The primary current rating of this current transformer is 120A.
The secondary current output of this model is 5A.
The bore diameter of the CT173 is 40mm, suitable for circular conductors up to 24mm aperture.
It has a power consumption of 2.5VA while operating at a frequency of 50/60 Hz.
The dimensions of this model are 95mm in length, 70mm in width, and 55mm in depth.
The protection rating of the CT173 is IP54, providing resistance against dust and water ingress.
The maximum operating temperature for the CT173 is 85°C.
This current transformer supports base mounting and is compatible with busbar mounting up to 30x10mm.
This model conforms to international standards including IEC 61869-2, IEC 60044-1, and BS 7626.
It features M5 stud secondary terminals equipped with lock washers, nuts, and terminal covers for secure connections.
This current transformer is used in electrical automation, industrial control systems, HVAC, and power distribution network protection.
The CT173 is manufactured in the United Kingdom under strict ISO 9001 quality management systems.
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