- Relays for energy flow EFR4000IP monitor the current flow between public power grid and generating plant / consumer. Operation is made comfortably via integrated webserver or directly at the device. Measured values are displayed neatly arranged at device on monitor. When the own power plant generates more power than actually is consumed it often is more economical to consume the excess energy self. This is especially reasonable when the difference is high between the price you pay to the grid provider and the price the provider pays for fed in energy.
- Shift own consumption into times with high generation of energy
- Switch on consumers when you have overflow of energy
- Increase the share of consumed own energy
- intelligent control of consumers
- Switching of up to 3 consumers: the largest consumer, ranked 1-2-3 or combination of 3 consumers (7 levels))
- Power consumption of the connected consumers
- Switch on points. At which energy flow consumers are switched on
- Switch on delay of consumers. Short lowering in consumption (by clocking consumers) or peaks in the feed does not immediately cause turn on of additional consumer
- Minimum on time. Heat pumps may not be switched on and off permanently, washing machines should be able to complete a cycle.
- Switch off delay. Short consumption peaks or reduction of the generated energy does not immediately switch off a load.
- Switch off point. At which energy flow consumers are switched off again. In practice, this value is usually slightly on the purchase side.
- Inputs for blinding out consumers when these are not available, for example when boiler has reached maximum temperature.
- Control of heat pumps (SG-ready), battery chargers, inverters
Thông số kỹ thuật
- Rated supply voltage.......DC/AC 24 – 240 V 0/50/60 Hz, <3 W, <9 VA
- Tolerance.......DC 20,4 - 297 V; AC 20 - 264 V
- Relay outputs K1, K2, K3.......3 x 1 change-over contact
- Switching voltage.......max. AC 300 V, DC 300 V
- Conventionel thermal current Ith.......max. 9 A
- Switching power max cos φ=1.......2000 VA
- Contact service life, electr. cos φ=1.......105 operations at 300 V / 9 A
- Rated operational current.......AC-15 Ie = 6 A Ue = 250 V
- Measurement of voltage (RMS).......L1 / L2 / L3 towardsN
- Voltage phase-N.......AC 40,0 … 330,0 V, 50/60 Hz
- Max. error of measurement.......± 0,5% of fullscale, ±1 digit
- Measurement of current.......Primary current max. 1.000 A
- Nominal currents / resolution.......AC 1/5 A / 1 mA
- Max. error of measurement.......± 0,5% of fullscale, ±1 Digit
- Overload capacity.......8 A continously, 25 A max. 1 s
- Resistance of input.......25 mΩ
- Measurement of active power.......± 1.000 kW, resolution 1 W
- Max. error of measurement.......± 1 % of fullscale ±1 digit
- Analog outputs (GND (┴), I+).......DC 0/4/1-10...20 mA, DC 0/2/0-5...10 V
- Max. error.......± 0,3 % of fullscale + error of measurement active power
- Temperature factor.......< 0,015 % / K
- Load.......≤ 500 Ω
- Test conditions.......see general technical information
- Operating temperature.......-20 °C ... +55 °C
- Dimensions (B x H x T).......140 x 90 x 58 mm, mounting height 55 mm
- Protection housing/terminals.......IP 30 / IP20
- Attachment.......on 35 mm DIN rail or with screws M4
- Weight.......app. 300 g