ALH-0.66 SK**J-Current Transformer-Siemens APT

ALH-0.66 SK**J

Novel design, advanced compensation method, excellent process technology, safe and reliable performance, small and aesthetic appearance, as well as complete varieties, ideal for control, protection, and measurement.

Important Parameters

Rated Insulation Voltage

AC660V
Power Frequency Withstand Voltage

3kV (1min, 50Hz; between the enclosure and secondary terminal)
Wide Range Of Hole Coverage

6mm~46mm
Secondary Side Current

2.5mA~60mA
Insulation Class

B

Product Features

Wide range of hole coverage: 6mm~46mm

Secondary side current: 2.5mA~60mA

For small currents, ferrite materials are used: offering higher accuracy and are less prone to rusting.

Integrated TVS (Transient Voltage Suppression Diode): No open-circuit high voltage. Ensure safety.

Made of nylon material, with an insulation class of B

Technical Parameters

Main Parameters

Rated Operating Voltage (Un)	AC660V
Rated Frequency	50～60Hz
Power Frequency Withstand Voltage	3,000V (1min, 50Hz; between the enclosure and secondary terminal)
Insulation Class	B
Altitude	≤1,000m (for regular applications: for special applications at altitudes >1,000m, the appropriate transformers must be selected according to the constraints specified in GB20840)
Compliance Standards	GB20840
Primary Current	40A~960A
Secondary Current	2.5mA~5A
Ambient Temperature for Use	-25℃~+40℃
Maximum Temperature Resistance	120℃
Ambient Temperature for Storage	-40℃~+70℃
Accuracy Grade	0.5、1

Industry Application

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