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Current Sensor
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Current Sensor
Comtrafo
Current sense magnetics Transformers are used as a low loss method for sensing AC current in a circuit and it also provide electrical and safety isolation between the source of the current and the measurement circuit. The key parameters for a current sense transformer are the rms current rating (to ensure it does not overheat in the application) and the safety and voltage isolation (to ensure it conforms to the end-application requirements).
Comtrafo catalogue products range from 0.10A to 40A sensing, isolation voltage between 500V and 5kV and insulation systems including functional, basic, and reinforced.
Custom solutions are available up 1000Arms
1- Product standard range from 0.10A to 40A sensing
Zettler Magnetics has a comprehensive current sense transformer manufacturing capability, producing both EI lamination types as well as toroidal current sense transformers. While offering a standard PCB mountable option, most of the parts we manufacture are custom designs based on our customer’s requirements.
ACST Series of PCB Mountable Current Sense Transformer
Key Benefits
Through-hole PCB mountable
Low profile design
Seven turns ratio options
Cost effective plug & play option
Key Features
Primary current range 0.4 to 30 Amps
Dielectric strength 4000 Vrms
UL class B materials
Split-bobbin design
ACST-200 SERIES
| Series | Outline Dimension(LxWxH) | Certificates | Datasheet |
|---|---|---|---|
| Current Sensor Transformers | 20.5×17.5×16.4mm | N/A | ACST-200 Series |
High Precision Current Sensor Transformers
| Series | Outline Dimension(LxWxH) | Certificates | Datasheet |
|---|---|---|---|
| High Precision Current Sensor Transformers | 18.0×10.0x21.5mm | N/A | ZCT13XXX |
| High Precision Current Sensor Transformers | 23x18x18.5mm | N/A | ZCT13XXX-P |
| High Precision Current Sensor Transformers | 23.0×18.0x18.5mm | N/A | ZCT26XXX |
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2- Current sensor for Watt-Hour Meters
Falco specializes in developing current transformers for electricity meters according to specific needs in terms of accuracy, mechanical constraints. They are designed and tested to meet the ANSI and IEC requirements including all the accuracy tests and effects of external influences. We have a big variety of sizes and shapes including: potted and un-potted versions, using pin or lead wire termination, or mounted on a primary wire. We can also add a magnetic shield to prevent the core from saturation due to the influence of external magnets that are used for tampering purposes. We have high precision for electricity meters that allow us to do all the linearity tests at different power factors, at different temperatures (from -40°C to +85°C), and the DC tolerance test. That allows us to optimize our current transformers in size, cost and performance to offer you a component that will meet your expectations and the lowest possible cost +85°C), and the DC tolerance test. That allows us to optimize our current transformers in size, cost and performance to offer you a component that will meet your expectations and the lowest possible cost.
APPLICATION
Our current transformers are used in a variety of single and poly-phase electricity meters for billing electricity, where high accuracy is needed. They can be used in residential, industrial or even in Power Quality Meters. The applications include direct connected meters and transformer operated meters.
FEATURES
Current Transformers for AC only
- Current Range from 5 to 640 Amp
- Accuracy Class 0.2 and 0.5 as per ANSI C12.20
- Accuracy Class 0.2 and 0.5 as per IEC 62053-22
DC Tolerant Current Transformers
- Current range from 20 to 120 Amp
- Full and partial DC tolerance
- Accuracy Class 1.0 as per IEC 62053-21
UL approved
Shielded against external magnetic fields
High precision testing for design validation
