EFR4002IP
Main Functions
Energy flow relay for self-generating systems
Zero-output device or limiter
Pav,e monitoring compliant with VDE-AR-N 4105:2018-11 standard certification
Optimizes self-consumption of self-generated energy
Can function as an energy flow sensor
Enables data exchange with power station controllers
Controls heat pumps, battery chargers, inverters, etc.
Capable of switching up to 3 consumers (loads)
3. Key Specifications and Parameters
Parameter Category Specification Details
Rated Power Supply Voltage DC/AC 24 – 270 V
Power Supply Frequency 0/40...70 Hz
Power Consumption < 3.5 W, < 9 VA
Relay Output (K1, K2, K3) 3 x 1 change-over contacts
Switching Voltage Maximum AC 300 V, DC 300 V
Switching Capacity (max cos φ=1) 2000 VA
Rated Operating Current (AC-15) Iₑ = 6 A, Uₑ = 250 V
Voltage Measurement (RMS) L1/L2/L3 against N
Voltage Measurement Range AC 10.0 ... 330.0 V / 50 Hz
Voltage Measurement Resolution 0.1 V
Voltage Measurement Error ± 0.5% of full scale ±1 digit
Current Measurement Via current transformers (expandable up to 2400 A)
Rated Current/Resolution AC 1/5 A / 1 mA
Current Measurement Error ± 0.5% of full scale ±1 digit
Overload Capacity 6 A continuous, 12.5 A maximum for 1 second
Active Power Measurement Range -99.99 MW to +99.99 MW
Active Power Measurement Error ± 1% of full scale ±1 digit
Analog Output DC 0/4/1-10...20 mA, DC 0/2/0-5...10 V
Digital Input 4 inputs (Y1-Y4) for control signals
Communication Interface IP connection, integrated web server, Modbus TCP, SunSpec
Operating Temperature -20 °C ... +55 °C
Enclosure/Mounting Design V8 / front mounting kit ER8, 8 TE
Dimensions (Width x Height x Depth) 140 x 90 x 58 mm
Protection Class Enclosure IP 30 / terminals IP 20
Mounting Method 35 mm DIN rail or M4 screws
Weight Approximately 300 g