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Help CenterSenis CTH‑100 High Precision Current Transducer Industrial Current Measuring Conversion Equipment
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Product Description
The CTH-100 is a clamp-on (also known as split-core) current transformer designed to measure DC, AC, and pulsed currents, featuring electrical isolation between the primary and secondary circuits. The CTH product series offers current transformers with rated measurement current ranges from 100 A to 10 kA. The CTH-100 is configured with a rated measurement (primary) current of 100 A.
The CTH-100 current transmitter consists of two parts: the transmitter head and the transmitter electronics unit, which are connected via a multi-core shielded cable no longer than 10 meters.
The transmitter head contains two split magnetic cores equipped with two high-resolution Hall sensors used to measure the differential magnetic field around the current-carrying conductor.
To eliminate residual magnetism in the split cores, the CTH-100 employs an advanced demagnetization process. A button on the sensor’s front panel is used to initiate the demagnetization process. During demagnetization, a dedicated LED indicator will turn red, indicating that the sensor output is invalid.
| Item | Specification |
|---|---|
| Country of Origin | Switzerland |
| Series | CTH Series |
| Rated Current | 100A … 1000A (AC) |
| Measuring Frequency | 50Hz (400Hz optional) |
| Output Signal | A0:0‑20mAA1:4‑20mAV0:0‑5VV1:1‑5V (DC), optional selection |
| Accuracy | 0.5% |
| Response Time | ＜350 mS |
| Linearity | ＜0.5% |
| Power Supply Voltage | 15V‑24V (±5%) |
| Power Consumption | 30 mA |
| Isolation Voltage | Between primary and secondary circuit: 5kV RMS /50Hz /1 min |
| Operating Temperature | -25℃ ~ +85℃ |
The CTH series is a line of current transducers designed to measure DC, AC, and pulsed currents, featuring electrical isolation between the primary and secondary circuits. CTH series current transducers consist of two parts: the transducer head and the transducer electronics unit, which are connected via a multi-core shielded cable up to 10 meters in length.
Performance Features
Measures DC, AC, and pulsed currents; IPN = 100 A (IPN—rated primary current)
Frequency bandwidth from DC to 3 kHz (total accuracy
Clamp-on (split-core) design for easy installation; no need to interrupt the primary current circuit during installation
Closed-loop current transmitter utilizing high-resolution Hall sensors
Outstanding total accuracy
Excellent linearity
Minimal offset
Very low temperature drift within the -40°C to +70°C temperature range
High immunity to external interference
Rapid recovery after high transient overloads
BNC interface with differential output
Jaw diameter (max. conductor diameter): 20 mm
Product Dimension 1: Dimensions of the CTH-100 current sensing head
Product Dimension 2: Dimensions of the CTH-100 electronics box
Product Applications
Power electronics
Motor and generator control
Electromechanical systems
Battery charging
Public transportation and off-road vehicles
Process control
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