Energy Analyser Dimensions W x H x D: 17.5 x 90 x 67.5 mm Frequency: 48...62 Hz Operating temperature: -25...+55 °C Measurement accuracy: Class 1 @ EN 62053-21 Operating voltage: 184...276 VAC Assembly type: DIN-Rail Display type: LCD Displays: 6-Digit Measurement input: Direct Operating voltage type: Single Phase Output: Transistor Protection rating: IP40 Accuracy, display: 1 % Character height: 7 mm Decimal places: 1 Rated measurement input current: 5 A