2 Overview
2.1 Device Versions
18 SICAM P850/P855, 7KG85xx, Device Manual
E50417-H1040-C482-A6, Edition 10.2018
2.1 Device Versions
The multifunctional SICAM P850/P855 devices are used to detect, calculate, evaluate, display, and transmit
measured electrical quantities such as alternating current, alternating voltage, power values etc.
SICAM P850 devices feature memory options for recorder functions such as mean values, minimum and
maximum values, and fault records. SICAM P855 device additionally feature memory options for event
recorder and trend record.
Consistent Device Properties
All devices consistently feature the following properties:
• Device type:
Plastic case 96 mm x 96 mm x 100 mm (W x H x D)
Web server for parameterization, visualization, and data management
Galvanically isolated voltage measuring inputs
• Input and output circuits:
4 inputs for alternating voltage measurements
3 inputs for alternating current measurements
2 individually programmable binary outputs
• Measurements:
Voltage V
Current I
Basic frequency f
Active power P (class 0.2S)
Reactive power Q
Apparent power S
Active power factor cos phi
Measurement up to the 40th harmonic of voltage and current
Limit violations
Energy measurements
• Other
Transmitting measured values using communication protocols
Internal 2-GB memory (SD card)
UL Listing
Variants
SICAM P850/P855 is available in different variants:
• Device type:
Panel flush mounting device with display for measured values and parameterization
DIN rail device without display
• Communication via Ethernet
Only Modbus TCP protocol
Modbus TCP protocol or IEC 61850 server protocol
• Serial communication
With RS485 interface:
- with Modbus RTU protocol
- with Modbus RTU protocol and IEC 60870-5-103 protocol
Without RS485 interface
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