Siemens 7KG7750-0AA01-0AA0 SICAM P50 Power Meter
The Siemens 7KG7750-0AA01-0AA0 is a high-precision power meter from the SICAM P50 series, designed for electrical energy measurement and power quality monitoring in industrial and commercial applications. This direct-display control panel installation instrument provides comprehensive measurement of electrical parameters including voltage, current, power, energy, and frequency. The 7KG7750-0AA01-0AA0 is suitable for applications such as energy management systems, sub-metering installations, motor control centers, and power distribution units, providing essential data for energy optimization and cost allocation.
Product Specifications
Product Family: SICAM P50 / P55 Series
Model: 7KG7750-0AA01-0AA0 SICAM P50 Power Meter
Display: Graphic display for measured values
Panel Size: 96 x 96 mm standard instrument format
Protection Rating: IP41 (front panel standard)
Binary Outputs: 2 outputs
Communication Interface: RS485 with PROFIBUS DP and Modbus RTU / ASCII protocols
Mounting: Direct-display control panel installation
Net Weight: 0.750 kg
Electrical Parameter Measurement
The SICAM P50 power meter measures a comprehensive range of electrical parameters for complete power system monitoring. Voltage measurements include phase-to-phase and phase-to-neutral voltages for three-phase systems. Current measurements track load currents across all phases. Power measurements include active power (watts), reactive power (VARs), and apparent power (VA) with corresponding power factor calculations. Energy measurements accumulate active energy (kWh) and reactive energy (kVARh) for billing and efficiency analysis. Frequency measurement monitors power system frequency for quality assessment. All measured values are displayed on the graphic display and available via communication interfaces.
Graphic Display and User Interface
The 7KG7750-0AA01-0AA0 features a graphic display that presents measured values in an organized, easy-to-read format. The simple and individual screen design enables operators to read information relevant to their measuring tasks at a glance. The number of screens, screen types, and their contents can be parameterized as required, allowing customization for specific application needs. Screen types available include three measured values displayed digitally, six measured values displayed digitally, voltage and current phasor displays with power factor, and minimum and maximum value displays. Operators navigate through screens using the two front arrow buttons, with automatic scrolling optionally programmable for normal display mode.
Communication Capabilities
The power meter includes an RS485 communication port supporting multiple industrial protocols. PROFIBUS DP protocol enables integration into Siemens automation networks for centralized monitoring and data collection. Modbus RTU protocol provides compatibility with a wide range of PLC systems, SCADA software, and energy management platforms. Modbus ASCII protocol is also supported for legacy system integration. The communication capabilities allow the power meter to transmit measured values to control systems for real-time monitoring, data logging, and alarm generation, making it suitable for integration into facility-wide energy management systems.
Binary Output Functions
Two binary outputs are provided on the 7KG7750-0AA01-0AA0 for external signaling and control functions. These outputs can be configured to activate based on measured values, such as alarm thresholds for overcurrent, overvoltage, or power factor deviation. The outputs can also be used for pulse output of accumulated energy, providing a simple interface for external totalizers or energy display devices. The binary outputs expand the functionality of the power meter beyond simple measurement, enabling basic control and alarm functions without external logic devices.
Direct-Display Panel Installation
The SICAM P50 is designed for direct-display control panel installation, making it suitable for mounting on switchgear doors, control cabinet fronts, and motor control center panels. The 96 x 96 mm standard instrument format fits standard panel cutouts, simplifying replacement of existing analog meters or installation in new panels. The IP41 front panel protection rating provides resistance to dust ingress and protection against dripping water, making the meter suitable for industrial environments where occasional splashing or washdown may occur. The rear of the instrument is designed for installation within the control cabinet, protecting internal electronics from environmental exposure.
Application in Energy Management Systems
The 7KG7750-0AA01-0AA0 power meter is an essential component for industrial energy management systems. By measuring energy consumption at key points in the electrical distribution system, the meter provides data for identifying energy reduction opportunities, verifying savings from efficiency projects, and allocating energy costs to production departments. The communication capabilities allow integration with building management systems and industrial automation networks for centralized monitoring and reporting. Energy data collected from multiple meters can be aggregated for facility-wide analysis, supporting ISO 50001 energy management programs and corporate sustainability initiatives.
Sub-Metering Applications
In sub-metering installations, the SICAM P50 power meter measures energy consumption for specific loads, production lines, or building areas, providing detailed visibility into energy usage patterns. Sub-metering allows facility managers to identify which equipment or processes consume the most energy, prioritize efficiency improvements, and verify savings from implemented measures. For multi-tenant buildings, sub-metering enables accurate allocation of energy costs to tenants based on actual consumption rather than square footage. The meter's compact size and panel-mount design facilitate installation in existing electrical panels without major modifications.
Power Quality Monitoring
Beyond basic energy measurement, the SICAM P50 provides power quality information useful for troubleshooting electrical system issues. Voltage and current measurements help identify phase imbalances that can cause motor overheating and equipment malfunction. Power factor measurement indicates the efficiency of power usage, with low power factor potentially triggering utility penalties or indicating the need for power factor correction equipment. Frequency monitoring helps identify unstable power conditions that could affect sensitive electronic equipment. This power quality information supports proactive maintenance and troubleshooting of electrical distribution systems.
Compliance and Standards
The 7KG7750-0AA01-0AA0 complies with IEC 60688, EN 60688, and DIN EN 60688 standards for electrical measuring instruments. These standards define accuracy requirements, safety specifications, and test procedures for power meters and transducers. CE marking confirms conformity with European directives for electromagnetic compatibility and low voltage safety. The meter meets applicable standards for industrial measurement equipment, ensuring reliable performance in demanding electrical environments. The product lifecycle status is active, with ongoing support from Siemens for new installations and existing systems.
Physical Specifications and Installation
The SICAM P50 power meter has a net weight of 0.750 kg and packaging dimensions of 0.26 × 0.39 × 0.14 meters. The 96 × 96 mm front panel fits standard cutouts, with mounting hardware included for secure installation. The rear terminal connections are accessible for wiring of voltage inputs, current transformer inputs, communication connections, and binary output connections. Proper grounding of the instrument at the PE terminal is required for safe operation and compliance with safety standards. The instrument should be installed in a location with adequate access for viewing the display and connecting wiring.
Conclusion
The Siemens 7KG7750-0AA01-0AA0 SICAM P50 power meter provides precise electrical parameter measurement with graphic display, RS485 communication, and panel-mount installation. Its comprehensive measurement capabilities, communication options, and robust design make it a versatile solution for industrial energy monitoring, sub-metering, and power quality applications.
