The E850 grid meter is available in two main versions:

E850 f6: wall mounted

E850 f9: rack mounted

• Optional ESSAILEC plugs
• The E850 is a high-precision electricity meter designed for power plants, photovoltaics, on-shore and off-shore wind farms, transmission networks, substations, railway infrastructure and grid-connected commercial and industrial consumers.
• The exceptionally fast measurement system, high data resolution and proven operational security make E850 the preferred choice for customers seeking to improve billing accuracy, network operation, electricity exchange, load frequency control, measuring and recording flows of electricity and other grid applications.
• The grid meter offers top accuracy and long-term stability in energy measurement under all operational conditions. The highest metering accuracy generates savings for the customers and the precision is guaranteed even at the lowest load of 2% in a single-phase operation, unbalanced or cos φ below 1. The E850 powerful measurement system is five times faster than in industrial meters and it provides sufficient resolution for capture periods under 15 minutes (1 to 5 minutes) and accurate measurement when energy direction changes.
• Active class: 0,2S / 0,5S, Reactive class: 0,5S / 1
• 50/60Hz or 16 2/3 Hz (railway)
• Modular communication (RS 232 / RS 485 / Ethernet / GSM / GRPS / UMTS (3G))
• Input and output contacts up to 8 (energy direction, load control (Pmax, Qmax))
• Active, reactive, apparent measurement (+P -P, +Q -Q, Q1..Q4)

– Measurement of instantaneous values of phase voltages and currents

– Phase angle measurement and determination of the direction of the rotating field

– Instant monitoring of voltage (imbalance, over/under voltage, interruption) and current (unbalance, overcurrent) values