A Single Phase Two Wire DIN Rail Meter is a reliable and compact solution designed for accurate measurement of electrical energy consumption in single-phase electrical systems. Installed on a standard DIN rail, this meter is ideal for residential, commercial, and industrial applications where space-saving and efficient energy monitoring is essential.
The two-wire design simplifies installation and reduces the need for complex wiring, making it an excellent choice for both new installations and retrofits. Featuring high accuracy and durability, the meter provides real-time energy data, helping users optimize energy usage, reduce costs, and comply with regulatory requirements.

Zhejiang Reallin Electron Co., LTD was founded in 2005. is a specialized high-tech enterprise gathering the research and development. As well as production,sales and provide good service for its products which are including all kinds of Grid Electricity Meters,EV charging Meters, AMI Solutions,Smart Sensors and IOT platform.
Factory area is about 19,000 square meter, has more than 400 employees, including professional and technical personnel more than 150 people.
The company input a series of high tech automatic machine & intelligent Equipments (automatic production lines, intelligent warehousing and so on),The production capacity is around 3.5 million single phase meters and 2 million three phase meters annually.

What is a single-phase two-wire DIN rail meter?
A single-phase two-wire DIN rail meter is a single-phase electronic energy meter that uses a DIN rail installation method. It is used to measure active energy in a single-phase AC power grid. It has two wires, one is the phase line and the other is the neutral line.
What is the difference between a single-phase two-wire DIN rail meter and an ordinary meter?
In terms of installation method, a single-phase two-wire DIN rail meter uses a 35mm DIN standard rail installation, which can be quickly and easily installed in equipment such as distribution boxes, while ordinary meters are mostly wall-mounted. In terms of functional characteristics, rail meters are generally smaller in size and higher in accuracy. Some also have intelligent functions such as RS485 communication, which can realize remote meter reading and centralized management.
What are the functions of a single-phase two-wire DIN rail meter?
It can directly and accurately measure the active energy in a single-phase AC power grid with a rated frequency of 50Hz or 60Hz. It usually has a passive pulse output function, which is convenient for connection with various automation systems. Some meters also have RS485 communication function, which can be connected to the communication network for remote meter reading and centralized management. Some can automatically detect the direction of load current flow.
Can single-phase two-wire DIN rail meters achieve dual-channel dual control?
Yes. One way is to achieve it through external wiring. The power lines and load lines of the two circuits need to be connected to the external wiring terminals of the meter, and the current and voltage signals are input into the meter for measurement and calculation. The other is to achieve it through built-in modules. Two control modules are integrated inside the meter, and each module independently measures and controls a circuit.
What are the accuracy levels of single-phase two-wire DIN rail meters?
Common accuracy levels are level 1 and level 2, such as DDS238-1, which has an accuracy of level 1.
What are the voltage and current specifications?
Common rated voltages include 220V, 230V, 240V, etc.; rated currents include 5 (25) A, 5 (30) A, 5 (32) A, 1.5 (6) A, 10 (60) A, 20 (80) A, etc.
How to install a single-phase two-wire DIN rail meter?
The installation can be completed by inserting the meter into the 35mm DIN standard rail. If the front panel installation is selected, the center distance of the installation holes is generally 63mm. When installing, be sure to turn off the relevant power supply, use insulating tools, and select appropriate connecting wires and overload protection devices.
What should I pay attention to when using a single-phase two-wire DIN rail meter?
It should be used under specified environmental conditions such as temperature and humidity. For example, the normal operating temperature is generally -15℃~55℃, and the ambient humidity is ≤85%. Ensure that the wiring is correct, avoid overload operation, and regularly check the operating status and communication function of the meter.