1. Product Features

Adopting microelectronics technology and SMT surface welding process, using dedicated integrated metering chips, it can accurately measure active energy in both positive and negative directions, and accumulate in the same direction, with anti-theft function; Equipped with RS485 communication interface, it can choose Modbus communication protocol, DLT645-1997 and DLT645-2007 communication protocols; This smart energy meter can also be used as a single-phase multifunctional energy meter, with advantages such as small size, high accuracy, good reliability, and easy installation.

AT28DP-1H-C contains a large capacity magnetic holding relay, which has functions such as remote control of power outage, timed power outage, prepaid and remote card purchase of electricity, malicious load recognition (normal use of computers and refrigeration and heating air conditioners, automatic prohibition of fast heating, hair dryers, electric stoves, etc.). Electric meters with current levels of 80A and below can automatically cut off power without any charge, and automatically transmit power after purchasing electricity. This is different from the drawbacks of external control trip coils, which can only achieve automatic power-off and cannot achieve automatic power transmission.

Remote query of parameters such as electricity consumption, purchased electricity, and remaining electricity. All products are self-developed and produced by our company, supporting customized functions. Please contact our company for details.

2. Main technical parameters

2.1 Accuracy: Level 0.5;

2.2 Calibration current: single-phase 1.5 (6) A, 2.5 (10) A, 5 (20) A, 10 (40) A,

15(60)A, 20(80)A;

Nominal voltage: AC220V;

2.3 Power consumption: ≤ 1W; Display mode: LCD display;

2.4 Operating voltage range: AC160-265V;

2.5 Starting current: 0.2% Ib for transformer connected type and 0.4% Ib for direct connected type;

2.6 Power frequency to ground withstand voltage value: 2kV/1min;

2.7 Operating temperature and humidity range: -25~55 ℃,<90% (no condensation);

2.8 Passive photoelectric pulse interface with on-site verification of meter accuracy;

2.9 The product shall comply with GB/T 17215.321-2008 and JJG596-2012 Verification Regulations for Electronic Energy Meters;

When selecting single-phase multifunction, the "▲" and "▼" buttons can also be used to view electrical parameters such as current, voltage, active power, reactive power, apparent power, power factor, etc. (optional functions).

2.11 Connect a current of 80A or below directly, and connect a current transformer for currents above 80A;

2.12 The cross-sectional area of the primary line passing through the electricity meter is ≤ 35mm2;

2.13 Equipped with a large capacity magnetic holding relay, it realizes the prepaid function of buying electricity before using it, and automatically cutting off power without charge.

3. External dimensions

4. Wiring diagram

Attention: When the current specification is 1.5 (6) A, it is necessary to specify whether it is a transformer connected or directly connected type.