Rail type single-phase energy meter:

name	model	Function Description
Rail type single-phase energy meter	YN20E	Single phase four quadrant energy metering, LCD display, active and reactive pulse output
	YN20EE	Unidirectional four quadrant electric energy U, I, P, F, PF, Q, S metering, LCD display, active and reactive pulse output
	YN20EF	Unidirectional U I、P、F、PF、Q、S、 Four quadrant energy metering, LCD display, active and reactive pulse output, time-sharing multiple rate function

Overview:

The YN20E series rail type single-phase energy meter is a new generation of miniature energy meters developed by our company based on years of experience in meter design. The miniaturized structure facilitates its use with miniature circuit breakers and is installed in terminal distribution boxes, providing an effective solution for energy metering in low-voltage distribution terminals. Widely applicable to buildings, shopping malls, exhibition centers, schools, airports, ports, and factories.
The YN20E series rail type electric energy meter is divided into three types: basic type, enhanced type, and multiple rate type. The basic type can measure four quadrant electrical energy, while the enhanced type not only measures four quadrant electrical energy, but also adds measurement of electrical parameters such as voltage and current. The multi rate type provides multi rate energy metering and measurement functions for all electrical parameters. All three types can be equipped with one switch output and one RS485 communication function for remote control and data acquisition.
The electric energy meter adopts LCD display, which can set parameters such as clock and rate period, and has the function of outputting electric energy pulses; The use of RS485 communication interface for data exchange with the upper computer greatly facilitates the automation management of electricity consumption. This electric energy meter has the advantages of small size, high accuracy, good reliability, and easy installation. Its performance indicators meet the technical requirements of international GB/T17215, GB/T17883, and DL/T614 for electric energy meters in the power industry.

Technical indicators:

project				parameter
model				YN20E	YN20EE	YN20EF
Electric energy accuracy level				Active power 1.0, reactive power 2.0 level
Display mode				LCD screen display
letter name transport enter	measuring network			single phase
	voltage		RATING	AC380V/AV220V/AC110V
			overload	1.2 times rated value (continuous), 2 times rated value/1 second
			power consumption	＜ 1VA (per phase)
			impedance	＞500KΩ
	electric current		specifications	5 (30) A, 10 (60) A
			overload	＜0.4VA
			impedance	＜2mΩ
	reference frequency			50Hz or 60Hz
	electric energy			Four quadrant energy metering
working voltage				Normal operating voltage range: 0.9~1.1Un
power consumption				＜5VA
functional module		electric energy pulse		Pulse width: 80ms ± 20ms optocoupler isolation, open collector output
		communication interface		RS485, MODBUS-RTU protocol
		Switching Output		Relay capacity: AC250V/5A DC30V/3A
temperature range				Normal operating temperature: -10 ℃~+55 ℃, maximum operating temperature:- 20℃~+65℃ <93% (no condensation)
relative humidity
Environment				-20~85 ℃, relative humidity ≤ 93%
secure		isolation		Signal, output terminal with resistance greater than 100M Ω
		pressure resistance		Input and output>2kv
External dimensions				90*36*66（mm）
Installation method				Installation of 35mm standard guide rail

Outline drawing and hole size drawing:

Wiring method: