There is always one Circle+ in each Plugwise network. The Circle+ has the role of coordinator in setting up a Plugwise network. The Circle+ keeps track of which Circles belong to the network and communicates this to the Stick in the computer.
The Circle+ has a real-time clock and a battery and periodically synchronises time with the other Circles. After the network is set up the Circle+ can be used as a regular Circle.
| Parameters | Min. | Nominal | Max. | Unit | Remarks |
| Power supply | |||||
| Supply voltage | 85 | 230 | 253 | VAC | |
| Frequency | 50 / 60 | Hz | |||
| Power dissipation | 0,3 | 0,55 | 1,1 | W | 230 VAC, 50 Hz, 25˚C, unloaded |
| Output | |||||
| Output current | 16 | A | cos phi 1, max. inrush current: 70 A during 2.5 ms. | ||
| Switching cycles (23 ˚C, 35-85% RH) | 10 000 | Cycli | Max. 16 A, cos phi 1 | ||
| Switching cycles (23 ˚C, 35-85% RH) | 6050 | Cycli | Switching on: 30 A, Switching off: 3 A, cos phi 0,3 | ||
| Energy measurements | |||||
| Accuracy (current usage) | 5% ± 0,5 W | 230V AC, 50 Hz, 23˚C, range: 1,035-3680W | |||
| Accuracy (cumulative) | 1% ± 0,2 W | 1 hour cumulative data | |||
| Permanent memory | |||||
| Storage capacity | 512 | kByte | |||
| ZigBee communication | |||||
| Baudrate | 250 | kbps | O-QPSK | ||
| Frequency | 2400 | 2483,5 | MHz | 16 channels of the 2,4 GHz ISM band | |
| Bandwidth | 2,0 | MHz | 5MHz channel spacing | ||
| Receiving sensitivity (signal/noise ratio) | -92 | -97 | -98 | dBm | 1% PER (20 byte packet) |
| Transmission power | -32 | 3 | 5 | dBm | |
| Clock | |||||
| Clock operating time without power supply | 6 | 9 | Days |
About the Plugwise system.
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Measures the energy consumption of connected appliances and switches them on or off wirelessly with the Circle, which is positioned between the plug of an appliance and its power socket.
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The Stick collects power consumption data and communicates with Circles and Source.
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Intelligent software for energy management and wireless switching.
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Switch appliances on or off, without wiring.
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