DS(T)SY103 electronic three-phase prepaid energy meterDetailed product description：

Product Overview
The DS (T) SY103 electronic three-phase prepaid energy meter uses the latest dedicated CPU for three-phase energy metering for data processing, display, and control of relay actions; Adopting unique checkpoint security and protection measures; Dynamic, secure and reliable IC card encryption mechanism; Advanced hardware and software fault-tolerant processing; Reliable power grid monitoring and anti-interference circuit design. It has the characteristics of reliable operation, high precision, large overload capacity, low self power consumption, small size, light weight, long service life, high cost-effectiveness, and easy installation. Accurate measurement and prepayment of three-phase AC active energy with a frequency of 50Hz can be achieved. All performance and technical indicators of this product comply with the relevant indicators of GB/T 17215.321-2008 "Level 1 and Level 2 Static AC Active Energy Meters".

Main functions
Electricity metering, event recording, prepayment, alarm, infrared communication, RS485 communication, calendar clock, power outage display, electricity freezing, power outage tripping
Main Features
Capable of measuring active energy in both directions and counting it in the forward direction in reverse
Apply computer management to purchase electricity before using it
Within the rated current range, the maximum operating power can be limited
One meter, one card, dedicated card, no power loss after card loss, can be used after card replacement
Electric cards can transmit data bidirectionally
Can automatically power off and alert users to purchase electricity; When the battery level is zero, the power will automatically trip and cut off
Equipped with anti electricity theft design
Equipped with infrared and RS485 communication functions

technical parameters
Accuracy levels 1.0 and 2.0
Reference voltage 3 × 220/380V, 3 × 57.7/100V
Reference frequency 50Hz
Main current specifications: 3 × 1.5 (6) A, 3 × 5 (20) A, 3 × 10 (40) A, 3 × 15 (60) A, 3 × 20 (80) A, 3 × 30 (100) A
Starting current level 1 0.4% Ib, level 2 0.5% Ib
Working voltage range 0.7Un~1.2Un
Normal operating temperature -30 ℃~+55 ℃
Extreme working temperature -40 ℃~+70 ℃
Storage and working humidity ≤ 85%
Power consumption voltage circuit ≤ 2W/10VA current circuit ≤ 2.5VA
Weight 1.5kg