Description

The RE-211 Series is a high accuracy electrical energy measurement DIN-Rail mount device intended for single phase applications. It measures line voltage and current and calculates active, reactive, and apparent energy, as well as instantaneous rms voltage and current.

The RE-211 Series offers complete power monitoring capability by providing measurements on rms, active, reactive, and apparent powers and energies.

RE-211 includes a sag detection feature that warns the user when the absolute value of the line voltage falls below the programmable threshold and a peak detection feature on both Current Channel and voltage channel. This feature continuously records the maximum value of the voltage and current waveforms, to provide a complete swell detection function.

Superior analog performance, powerful AI acceleration and reliable security features enable accurate energy monitoring.

Specifications

General Specifications	Type of network	1P + N
	Sampling rate	6.99 kSPS
	Measurements	Active Power, Reactive Power, Apparent Power, Active Energy, Reactive Energy, Apparent Energy IRMS, VRMS Power factor Supports EN 50470-1, EN 50470-3, IEC 62053- 21, IEC 62053-21, IEC 62053-22, and IEC 62053-23 standards
	Display	0.96" Oled, 128 x 64 pixels, B/W
	Real Time Clock	NTP syncronized. Time accuracy: ± 1 ppm @ 25°C
	Data and Event logging	Online and onboard realtime data and event logging

Power Supply	Number of Inputs	2 Inputs, 1 Phase and Neutral (shared with Voltage Inputs)
	Voltage Range	90-300V AC
	Frequency Range	50-60Hz
	Max Current	0.15A
	Overcurrent Protection	Internal Fuse (1A 350V AC)
	Overvoltage Protection	Internal MOV+GDT

Voltage Inputs	Number of Inputs	2 Inputs, 1 Phase and Neutral
	Max. Voltage Input	300V L-N
	Measurement Category	300V CAT III
	Overcurrent Protection	Internal Fuse (1A 350V AC)
	Overvoltage Protection	Internal MOV+GDT

Current Inputs	Number of Inputs	1 Input, 1 Phase
	Inputs Type	Current Transformers
	Max. Current Input	0.1A
	Current Transformers	75A : 0.1A Ø 10mm

Accuracy	Voltage	0.2%
	Power factor	±0.001
	Active/Apparent Power	Class 0.2
	Reactive power	Class 0.2
	Frequency	0.05% from 45 to 65 Hz
	Active energy	Class 0.2
	Reactive energy	Class 0.2

Mechanical	Dimensions (LxWxH)	35mm x 86mm x 59mm
	DIN-Rail Size	2M
	Weight	0.110kg
	IP degree of protection	IP40 front panel: conforming to IEC 60529 IP20 body: conforming to IEC 60529

Safety	General	CE as per IEC 61010-1 (double insulation)
	Pollution Degree	2
	Overvoltage Category	OVCIII (2000m)
	Operating Altitude	Up to 2000m

Environment	Operating temperature	-40 ºC to 65 ºC
	Humidity rating	5 to 95% RH at 50 ºC (non-condensing)
	Pollution degree	2

Communication	Wi-Fi	2.4 GHz Wi-Fi (802.11 b/g/n)
	Bluetooth	Bluetooth® 5 (LE)
	Modbus	Modbus TCP/IP
	MQTT	MQTT Client MQTTs Client (over TLS)

Cybersecurity	Data Encryption	MQTT data transfer over TLS
	Flash Encryption	AES-XTS-based flash encryption
	User Access	Strong password enforcement
	Events logging	Security events logging via Syslog
	Secure Boot	RSA-based secure boot
	Services	Disable Unused Services and ports
	Wi-Fi	Protected Management Frames (PMF) support

Licensing

The LIC-RE431-D-X license is required to enable advanced features of the RE-431-D device, a high-precision three-phase analyzer with Wi-Fi communication.

This license follows a Right-to-Use (RTU) model valid for 12 months, and unlocks the following additional capabilities:

*License Model
Product code: LIC-RE211-D
Duration: 12/24/36/48/60 months (renewable)

⚠️ Without an active license:
The device operates in basic mode, enabling only standard three-phase monitoring and Wi-Fi transmission of main data (V, I, P, Q, S, cosφ).