Single Phase Smart Meter

Hongxin Intelligent DDSY2377 Electronic Single-Phase Prepaid Smart Energy Meter is an advanced intelligent power device integrating energy metering, load control and user information management. Developed based on high-performance electronic single-phase energy meters, it is an ideal solution for reforming the power consumption system, commercializing electrical energy, solving payment collection difficulties and optimizing power grid load. Fully compliant with GB/T17215.321-2021 《Class 1 and Class 2 Static AC Active Energy Meters》 and GB/T18460.3-2001 《IC Card Prepaid Electricity Vending System - Part 3: Prepaid Energy Meters》, the product holds CCC certification and metrology certification, meeting State Grid and Southern Grid standards for long-term stable operation.

Adopting a core "pay-first-use-later" model, the meter is equipped with a clear LCD display. When the remaining power drops to the alarm threshold, the warning light stays on to remind users to recharge promptly, and automatically trips to cut off power when the remaining power reaches zero, fundamentally solving arrears issues. It also boasts multiple practical functions: optional single tariff, multi-tariff and step tariff to meet the billing needs of different regions; a built-in large-capacity latching relay with low power consumption and high reliability, combined with long-life electronic components, realizing automatic power cutoff for overload protection and anti-theft design to fully ensure electricity safety.

In terms of usability, the product offers diverse recharge and management methods, including card insertion, swiping, remote recharge and QR code payment. RS485 communication and NB-IoT wireless versions are available for flexible adaptation. Cooperating with an intelligent cloud platform and mobile APP, it enables remote meter reading, remote control of power on/off and data storage/analysis, eliminating the need for on-site manual operations and significantly improving management efficiency.

The specification design caters to a wide range of needs: rated voltage covers 220V/240V, rated current options include 5(20)A, 10(40)A, 15(60)A, 20(80)A and 30(100)A, supporting both transformer-connected and direct-connected installation. With an accuracy class of Class 1/Class 2 (mainstream national standards), it can accurately measure active energy without calibration during long-term operation. Its compact design facilitates installation in meter boxes, suitable for wall-mounted or DIN rail mounting, seamlessly integrating into small-scale scenarios such as homes and shops, as well as centralized management scenarios like residential communities and factory dormitories.

Backed by comprehensive supporting services, the meter can be paired with meter boxes, card readers, recharge cards, transformers and intelligent management systems to form a complete power distribution and metering solution. Currently widely used in rural power grid transformation and project household metering, it has become the preferred product for real estate developers, property management companies, schools and other users.

Product Advantages

Compliance & Reliability: Meets national standards, State Grid and Southern Grid requirements; holds CCC and metrology certifications. Adopts long-life components for extended service life, high reliability and maintenance-free long-term metering.

Intelligent Prepaid Functionality: Supports multiple recharge methods (card, remote, QR code). "Pay-first-use-later" mode with automatic power cutoff for arrears and low-power warning, completely solving payment collection problems.

Multiple Protection Features: Equipped with automatic overload power cutoff and anti-electricity-theft functions; built-in high-reliability latching relay to ensure electricity safety and metering accuracy.

Flexible Adaptation: Multiple specifications for current (5(20)A-30(100)A) and voltage (220V/240V); supports transformer-connected/direct-connected installation and diverse communication methods (RS485/NB-IoT) to meet different scenario needs.

Efficient Management: Compatible with cloud platform and mobile APP for remote meter reading, control and data analysis. Optional multi-tariff/step tariff supports refined energy management.

Easy Installation & Operation: Compact design fits standard meter boxes; LCD display for clear data reading; plug-and-play installation reduces deployment costs.

Technical Parameters

Product Applications

Residential Scenarios: Homes, apartments, rental properties; suitable for individual energy metering and family electricity management.

Commercial Scenarios: Shops, office buildings, hotels; used for metering and charging management of commercial electrical equipment such as lighting and air conditioning.

Institutional Scenarios: Schools (dormitories, teaching buildings), hospitals, nursing homes; meets the centralized electricity management needs of public institutions.

Industrial Supporting Scenarios: Factory dormitories, industrial parks; realizes household metering for employee dormitories and centralized power control.

Transformation Projects: Rural power grid transformation, old community renovation, urban village reconstruction; ideal for engineering projects requiring standardized metering.

Property Management: Residential communities, commercial complexes; facilitates centralized meter reading, recharge management and arrears control for property companies.