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DIN-mount LonMark certified Energy Meter with LON FT-10 serial communication and native data logging. Includes two pulse inputs for other Energy Sensors.

E50F5 $1,309.65 EA

  • Overview
  • Series Specifications

The E50F5 LON DIN Rail 3-Phase Electrical Power Meter with Data Logging combines exceptional performance and easy installation to deliver a cost-effective solution for power metering applications including submetering, tenant billing, and cost allocation. Native serial communication utilizing LonWorks protocol (ISO/IEC 14908-1 Control Network Protocol) via a LON TP/FT-10 communication channel provides complete accessibility of all measurements to your Energy Management system   The data logging capability protects data in the event of a power failure. The E50F5 can be easily installed on standard DIN rail, surface mounted or contained in an optional NEMA 4 enclosure, as needed. The front-panel LCD display makes device installation and setup easy and provides local access to the full set of detailed measurements.  Two pulse inputs provide an easy way to incorporate simple flow sensors to track gas, water, steam, or other energy forms using a LonWorks building automation system in addition to full monitoring of electrical energy. The LON output of the E50F5 is a standard communication type commonly supported by automation systems and data loggers.


  • Energy metering in building automation systems
  • Energy management
  • Commercial submetering
  • Industrial metering
  • Cost allocation


  • LonMark Certified
  • DIN rail mounting option...easy installation
  • ANSI 12.20 0.2% accuracy, IEC 62053-22 Class 0.2S...great for cost allocation
  • Real energy output and phase loss alarm output...one device serves multiple applications
  • 90-600 VAC...application versatility with fewer models to stock
  • Bright backlit LCD...easy visibility in dark enclosures
  • Data logging capability...safeguard during power failures
  • Compatible with CTs from 5A to 32000A...wide range of service types
  • User-enabled password protection...protect from tampering
  • System integration via LonWorks protocol...convenient compatibility with existing systems
  • Native LON TP-FT-10 support (no gateway required)


  • Control Power, AC: 50/60 Hz; 5VA max.; 90V min.; UL Maximums: 600V L-L (347V L-N ); CE Maximums: 300V L-N (520V L-L )
  • Control Power, DC: 3W max.; UL and CE: 125 to 300VDC (external DC current limiting required)
  • Voltage Input: UL: 90 V L-N to 600 V L-L ; CE: 90 V L-N to 300 V L-L
  • Current Input
  • Scaling: 5 A to 32,000 A
  • Input Range: 0 to 0.333 V or 0 to 1 V (selectable)
  • Pulse Inputs: Two sets of contact inputs to pulse accumulators


  • Real Power and Energy 0.2% (ANSI C12.20, IEC 62053-22 Class 0.2S)


  • Serial Communication: LonWorks protocol (ISO/IEC 14908-1 Control Network Protocol) via a LON TP/FT-10 communication channel


  • Mounting: DIN Rail or 3-point screw mount, NEMA 4 enclosure optional


  • Operating Temperature Range: -30° to 70°C (-22° to 158°F)
  • Storage Temperature Range: -40° to 85°C (-40° to 185°F)
  • Humidity Range: <95% Relative Humidity, noncondensing