... : 90°SF-96-3, SF-72-3.A selector switch is built into the instrument for measurement of AC ... Technical data:1) Accuracy: Class 1.5.2) Frequency range: 50HZ.3) Case: Non-combustile ABS plastic material is ... 70 and 120 respectively.4) 3 phase 3 wire Measuring range: 100V, 150V, 200V, 250V, 400V, 500V. 5) ... available on request).6) 3 phase 4 wire Measuring range: 60V/100V, 80/150V 100/200V 150/250V, ...