Description: A kind of new style single phase two wire active energy meter. It adopt micro-electronics technique, and imported large scale integrate circuit, use advanced technique of digital and SMT techniques, etc. The meter completely accord with relevant technical requirements of class 1 single phase active energy meter stipulated in international standard IEC 62053-21 It can accurate and directly measure 50Hz or 60Hz active energy consumption from single phase AC electricity net. White backlight source eight digits LCD displays shows the active energy consumption. Good reliability, small volume, light weight, specious nice appearance, convenient installation, etc. 35mm standard DIN- rail installation, complying with standard DIN EN50022. Specification: Type: XTM35SC Accuracy: Class 1.0 Rated voltage: 220V Basic current: 20A Maximum rated current: 80A Starting Current: 0.04% Insulating performance: Frequency AC voltage 2kv lasted 1 minute, the impact voltage 6kv Basic error: Phase balance load 0.05Ib Cosφ = 1 ±1.5% 0.1Ib Cosφ = 0.5L ±1.5% Cosφ = 0.8C ±1.5% 0.1Ib - Imax Cosφ = 1 ±1.0% 0.2Ib - Imax Cosφ = 0.5L ±1.0% Cosφ = 0.8C ±1.0% Package Includes: 4 Piece Electricity Meter 4 Piece User Manual