Thanks to its detachable, patented display, the meter can be installed on a DIN rail or panel (72x72 mm). It also offers pulse output and an optional RS485 serial port. Installation is easy thanks to its alarm in case of incorrect phase sequence, its short programming process, and the solution it provides with split-core transformers.
With the EM21-72V, current measurement can be performed simply by installing the mini split-core transformers with primary current up to 10,000 A directly onto the application cables, without disconnecting them. Five models of CTV series transformers (from 60 to 800 A) are available for use with the EM21-72V.
Main features of the EM21-72V:
• Instantaneous variable reading: 3 x 3 digits; Energy measurement readout: 7 digits
• Accuracy: ±0.5% of reading (voltage), ±0.5% of reading (current)
• Primary current range: 10 to 10,000 A corresponding to split-core current transformers, 0.333 V output (not included)
• System variables: W, var, PF, Hz, kWh, kvarh (more variables available via RS485)
• Individual phase variables: A, VLL, VLN, PF (more variables available via RS485)
• 1 pulse output (opto-mosfet)
Main features of CTV:
• Accuracy class: 1%
• Standard secondary output of 0.333 V
• Current ranges: 60, 100, 200, 400, and 800 A

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