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Rongtech Industry (Shanghai) Inc.,
RTC200LA close loop current sensor

RTC200LA close loop current sensor

Product catalog summary

Overview: The RTC200LA series current sensor by Rongtech Industry (Shanghai) Inc. is a closed loop device utilizing the Hall effect and null balance method. It ensures galvanic isolation between primary and secondary circuits, providing precise measurements of DC, AC, or pulsed currents.

Electrical Specifications:

Rated Input (Ipn): 25A to 200A depending on the model.
Measurement Range (Ip): Varies from 75A to 600A with different resistance values.
Turns Ratio: 1:1000 or 1:2000.
Coil Resistance: 30Ω or 45Ω.
Rated Output (Is): Ranges from 25mA to 125mA with a tolerance of ±0.5%.
Supply Voltage: ±12V to ±18V.
Power Consumption: 20 + IpX(Np/Ns) mA.
Offset Current: ≤±0.2mA at Ip=0.
Offset Current Drift: ≤±0.5mA from -40 to +85°C.
Linearity: ≤0.1%FS.
Bandwidth: 0 to 200 KHz.
Response Time: ≤1 µs at 100A/μs, 10%-90%.
Galvanic Isolation: 3.0 KV at 50Hz for 1 minute.

Applications: Suitable for AC variable speed drives, static converters for DC motor drives, power supplies for welding applications, battery-supplied applications, UPS, and SMPS.

Standards: Complies with UL94-V0, EN60947-1:2004, IEC60950-1:2001, EN50178:1998, and SJ 20790-2000.

General Data:

Operating Temperature: -40 to +85°C.
Storage Temperature: -40 to +125°C.
Mass: Approximately 25g.

Mechanical Dimensions: All dimensions are in mm with a general tolerance of ±1mm.

Directions for Use:

Ensure current flows according to the arrowhead direction for correct phase output.
Primary conductor temperature should not exceed 120°C.
Optimal dynamic performance when the primary hole is fully filled with the bus bar.
Primary turns should be at the top of the sensor for best magnetic coupling.
Voltage is measured at the output end when current passes through the sensor.
Custom designs are available for different rated input and output currents.

Characteristics Chart: Includes pulse current signal response characteristics and effects of impulse noise.

Catalog excerpts

Rongtech Industry (ShangHai) Inc., RTC200LA Series Closed Loop Mode Hall Effect Current Sensor Rongtech <E> The RTC200LA series current sensor is a closed loop device based on the measuring principle of the hall effect and null balance method, with a galvanic isolation between primary and secondary circuit. It provides accurate electronic measurement of DC, AC or pulsed currents.

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Rongtech Industry (ShangHai) Inc., RTC200LA Series Closed Loop Mode Hall Effect Current Sensor Mechanical dimension(for reference only) Remarks： 1. All dimensions are in mm. 2. General tolerance ±1mm. Directions for use 1. When measure current flows according to the direction of the arrowhead, Output terminal gets the same phase current. 2.The primary conductor should be≤120℃. 3.The dynamic performance (di/dt and the response time) is the best when the primary hole is fully filled with the bus bar. 4.The primary turns should be at the top of the sensor for the best magnetic coupling. 5.When the...

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RTC200LA close loop current sensor

RTC200LA close loop current sensor

Catalog excerpts

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