Accuracy: Class 1.5 Specification: Voltage: Single phase: 100V 220V 380V Three phase three wire: 100V 220V 380V 415V Three phase four wire: 100V 220(380)V 240(415)V Above-mentioned can be connectd directly. The following shoude be connected with voltage transformers: 380/100V 500/100V 3K/100V 6K/100V 10K/100V 15K/100V 35K/100... Current: 1A, 5A