STWA2AH
Electronic Current Transformer (with Analog Output)
Main Specifications and Parameters
Measurement Range
AC Current: 0 ~ 20 A / 0 ~ 100 A (range can be reduced by multi-turn winding)
Overload Capacity:
For the 20 A range: Continuous 63 A
For the 100 A range: Continuous 360 A
Output Signal
Analog Output: DC 4 ~ 20 mA (maximum 32 mA)
Output Isolation: Yes
Response Time: < 0.5 s
Power Supply
Power Supply Voltage: DC 9 ~ 30 V
Wiring Method: 2-wire system
Accuracy and Error
Basic Error (above 10% of the range): < 5%
Temperature Coefficient:
0 ~ 55°C: < 0.06%/K
-20 ~ 0°C: < 0.5%/K
Frequency Characteristics:
Rated Frequency: 50/60 Hz
Error at 30 ~ 400 Hz: ≤ 0.1%/Hz (30–50 Hz), ≤ 0.05%/Hz (60–400 Hz)
Environmental Conditions
Operating Temperature: -20°C ~ +55°C
Storage Temperature: Not specified (refer to manufacturer's instructions for recommendations)
Mechanical Characteristics
Case Dimensions (Height × Width × Depth): 50 × 36 × 56 mm
Conductor Bore Diameter: Ø 11 mm
Weight: Approximately 90 g