Current Transformer
At Control Design Supply, we specialize in providing dependable electronic components for industrial and commercial applications. One essential product in our lineup is the current transformer (CT)—a crucial device for monitoring and measuring alternating current (AC) in power systems. Whether you're managing electrical loads, ensuring system protection, or integrating current sensors into larger control systems, current transformers are vital for safe, accurate, and efficient operations.
Control Design Supply offers a wide range of products to make sure that you can find what you need. If you need a quote a product, reach out to us and we would be happy to help!
Control Design Supply offers a wide range of products to make sure that you can find what you need. If you need a quote a product, reach out to us and we would be happy to help!
What Are Current Transformers and Why Are They Important?
Current transformers are electrical devices that reduce high voltage current levels to a lower, manageable level for measurement and monitoring. By converting large current values into proportional signals, CTs allow for safe and efficient connection to metering instruments, protective relays, and data acquisition systems.They are commonly used in:
- Power distribution panels
- Switchgear and motor control centers
- Energy management systems
- Load monitoring and demand control
- Industrial automation and building infrastructure
Key Benefits of Current Transformers:
- Accuracy – Provides precise current measurements for metering and diagnostics.
- Safety – Isolates measurement instruments from high voltage circuits.
- Scalability – Supports integration with smart grid systems and IoT platforms.
- Versatility – Available in multiple form factors to accommodate both retrofit and new installations.
Choosing the Right Current Transformer
When selecting a current transformer, it’s essential to consider the following factors:- Primary current rating
- Output signal (e.g., 5A, 1A, 333mV)
- Accuracy class (e.g., 0.5, 1.0, 3.0)
- Mounting type (panel, DIN rail, split-core for retrofits)
- Window size for conductor clearance
- Application needs (metering vs. protection)
At Control Design Supply, we offer technical support and sourcing expertise to help you select the right CT for your environment, whether you're modernizing a facility or building a new control panel.
Why Choose Control Design Supply?
As a trusted distributor of electronic components, we partner with industry-leading manufacturers to provide high-quality products backed by excellent service. When you work with us, you benefit from:- Competitive pricing
- Quick turnaround times
- Expert product knowledge
- Reliable customer support
We're committed to helping our customers build smarter, safer, and more efficient systems—starting with the right current transformers. Contact us today with any questions you may have.