In modern electrical power systems,Energy Meter serves as one of the most fundamental and indispensable measuring devices. Whether for residential power billing, commercial energy consumption statistics, or industrial load monitoring, an accurate and reliable ELECTRICAL ENERGY METER is the core basis for energy data recording and power management.
The energy meter is an electrical measuring device, which is used to record Electrical Energy Consumed over a specified period of time in terms of units. Market Potential. Every house, small factory, business establishment, shops, offices etc. need at least one energy meter to register power consumption.
With the continuous upgrading of smart power grids and energy management systems, traditional mechanical energy meters can no longer meet the needs of high-precision measurement, remote data transmission and centralized management. Electronic energy meters have gradually become the mainstream of the market due to their high accuracy, small size, strong stability and intelligent communication functions. As a professional electrical equipment manufacturer, Zhejiang C&J Electrical co., ltd. (referred to as C&J Electrical) has launched the DM100S-U counter energy meter (DDSU5333 series), a high-performance rail-mounted single-phase electronic energy meter for global users.
Basic Overview of Electrical Energy Meter
An ELECTRICAL ENERGY METER is a professional instrument specially used to measure and record the active power consumption of AC circuits. Different from ordinary voltage and current meters that only display real-time data, the Energy Meter can continuously accumulate power consumption over time, providing accurate unit data for power settlement, energy consumption analysis and equipment operation monitoring[1].
Traditional mechanical energy meters rely on electromagnetic induction for metering, with large errors, slow response and single functions. In contrast, electronic energy meters represented by the C&J Electrical DM100S-U series adopt microelectronic technology, SMT surface mounting process and digital sampling processing technology. They feature higher measurement accuracy, stronger anti-interference ability and more diversified functions, supporting real-time monitoring of multiple electrical parameters and remote data transmission[1].
Product Overview of C&J Electrical DM100S-U (DDSU5333) Energy Meter
The DDSU5333 series rail-mounted single-phase electronic energy meter (DM100S-U counter energy meter) developed by C&J Electrical is a new-generation single-phase two-wire active energy meter. It adopts advanced microelectronic technology, imported large-scale integrated circuits, digital sampling processing technology and SMT craftsmanship, with stable and reliable overall performance.
This Energy Meter fully complies with the technical requirements of GB/T17215.321-2008 (Class 1 and Class 2 static AC active energy meters). It can accurately measure the active energy consumption of loads in 50Hz or 60Hz single-phase AC power grids. The device is equipped with an 8-bit LCD display to clearly present active power data. Meanwhile, it integrates infrared and RS485 communication modules to support intelligent data reading and remote management.
In terms of appearance and structure, the DM100S-U energy meter has the advantages of reliable operation, compact size, light weight, beautiful appearance and simple installation. It adopts a short protective cover design, which effectively reduces installation space and is convenient for centralized and dense installation in distribution boxes and control cabinets.
Core Functional Features
As a high-precision intelligent ELECTRICAL ENERGY METER, the DM100S-U (DDSU5333) series has complete functions and standardized design, complying with international and industry mainstream standards, and can adapt to various intelligent power management scenarios:
- Standard Rail Installation: It adopts 72mm standard rail installation, fully compliant with DINEN50022 standards. The 6-pole width (12.5mm modulus) meets DN43880 specifications, which is highly compatible with mainstream distribution box equipment on the market.
- Diversified Display Modes: Standardly equipped with 5+1 digit counter or LCD display, which can clearly and intuitively display accumulated active power consumption to meet different user viewing habits.
- Standard Pulse Output: Built-in passive energy pulse output (polarized), compatible with IEC62053-21 and DIN43864 standards, which can be perfectly connected with various AMR automatic meter reading systems to realize automatic data collection.
- Multi-Protocol Communication Support: Optional infrared and RS485 data communication ports. The communication protocols support DL/T645-1997, DL/T645-2007 and MODBUS-RTU, and can also customize other protocols to adapt to different intelligent monitoring systems[1][5][6].
- Multi-Parameter Measurement: In addition to accurate active energy measurement, it can monitor real-time voltage, current, power, power factor, frequency and other electrical data, realizing multi-dimensional monitoring of circuit operating status.
- Intelligent Status Indication: Equipped with two LED indicator lights. The green light displays power supply status, and the red light flashes to indicate energy pulse signals. It can automatically detect and prompt the reverse flow of load current, ensuring safe circuit operation.
- Stable Metering Performance: It supports one-way measurement of single-phase two-wire active energy consumption, independent of load current flow direction, with stable and accurate metering data.
- Optimized Wiring Design: Standard U-type wiring configuration, with simple and firm wiring, convenient for on-site installation and construction.
Main Technical Parameters
The DM100S-U (DDSU533372 wide series) Energy Meter has excellent technical indicators, meeting civilian and commercial high-precision metering standards:
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Technical Items
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Specifications
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Product Model
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DDSU533372 Wide Series (DM100S-U)
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Accuracy Class
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Class 1
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Rated Voltage
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220V
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Rated Current Specifications
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1.5(6)A, 2.5(10)A, 5(20)A, 10(40)A, 15(60)A, 20(80)A
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Starting Current
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0.04%
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Insulation Performance
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Power frequency AC voltage 2kV (1 minute withstand); Impulse voltage 6kV
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Application Scenarios
Benefiting from its small size, high precision, convenient installation and intelligent communication functions, the DM100S-U ELECTRICAL ENERGY METER is widely used in various scenarios requiring single-phase electric energy metering and monitoring:
- Residential Power Monitoring: Used for household electricity metering and power consumption statistics, accurately recording daily, monthly and annual power consumption.
- Commercial Places: Suitable for shops, offices, shopping malls, hotels and other commercial venues to support refined energy management and electricity bill settlement.
- Small Factories & Workshops: Applied to single-phase power distribution circuits of small industrial workshops to monitor equipment energy consumption and reduce energy waste.
- Smart Building & Community: Used for centralized energy monitoring in smart communities and office buildings, compatible with intelligent centralized meter reading systems.
- Public Facilities: Suitable for street lamps, scenic area facilities, campus buildings and other public power supply scenarios for stable and long-term metering.
Product Advantages
Compared with traditional mechanical and ordinary electronic energy meters, C&J Electrical DM100S-U series Energy Meter has obvious comprehensive advantages:
- High Measurement Accuracy: Class 1 high-precision metering, ultra-low starting current of 0.04%, sensitive response to tiny current changes, ensuring no missing metering and accurate data.
- Strong Safety & Stability: Excellent insulation performance, withstanding 2kV power frequency voltage and 6kV impulse voltage, effectively avoiding insulation breakdown and electrical faults, safe and durable for long-term operation.
- Smart & Compatible: Multiple communication protocols and pulse output functions support seamless docking with various AMR and intelligent energy management systems, realizing remote data acquisition and centralized control.
- Compact & Easy to Install: Standard rail mounting, small overall size and short protective cover design save installation space, suitable for dense and centralized installation.
- Rich Specification Options: Various current specifications are available to meet the metering needs of different power loads from low power to high power.
- Customization Service Supported: C&J Electrical provides professional OEM/ODM brand customization services, supporting personalized product configuration to meet diverse market and customer demands.
Contact Us
The DM100S-U (DDSU5333) series rail-mounted single-phase electronic energy meter launched by C&J Electrical is a high-quality ELECTRICAL ENERGY METER integrating high precision, intelligence, safety and convenience. It perfectly meets the accurate metering and intelligent management needs of residential, commercial and industrial single-phase power systems.
If you have any questions about product selection, parameter matching, installation and use, or need to know more about OEM/ODM customization services, please feel free to contact us. C&J Electrical will provide you with professional technical support and thoughtful after-sales service.
Post time: May-26-2026