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Selected parameters FUNCTION Energy Meters MOUNTING DIN-rail and Panel POWER SUPPLY Self power supply OUTPUT DIGITAL INPUT DC/AC output (Opto Mosfet) INPUT TYPE 3-phase AC CONNECTION CT/VT COMMUNICATION None Others RANGE 400VLL AC Current Sensor 90A DISPLAY 6+1 DGT VARIABLES W, var, PF, Hz, Phase-sequence DIGITAL INPUTS none PULSE 1 ALARMS none ANALOGUE none
Energy Management Energy Meter Type EM21 72R „Retro-Fit‰ • Including 3 miniature split-core current sensors • 10mm (90A), 16mm (150A) and 24mm (250A) diameter holes • Class A (kWh) according to EN50470-3 • Class 2 (kWh) according to EN62053-21 • Accuracy ±0.5% RDG (voltage), ±1% RDG (current) • Energy meter • Instantaneous variables readout: 3 DGT • Energies readout: 6+1 DGT • System variables: W, var, PF, Hz, Phase-sequence. • Single phase variables: VLL, VLN, A, PF • Energy measurements: total kWh and kvarh • TRMS measurements of distorted sine waves (voltages/currents) • Self power supply • Dimensions: 4-DIN modules and 72x72mm • Protection degree (front): IP50 • Application adaptable display and programming procedure (Easyprog function) • Easy connections management • Detachable display • Multi-use housing: for both DIN-rail and panel mounting applications Product Description How to orderEM21 72R VV5 3 X O X X Three-phase energy meter with removable front LCD display unit. The same unit canbeusedeitherasa DIN-rail mounting or a pan- el mounting energy meter. This general purpose three- phase energy meter is suit- able for both active and reactive energy metering for cost allocation but also for main electrical parame- ter measurement and retransmission (transducer function). Housing for DIN- rail mountingwithIP50 (front) protection degree. Current measurements car- ried out by means of exter- nal miniature split-core cur- rent sensors (included) and voltage measurements car- ried out either by means of direct connection or by means of potential trans- formers. EM21-72R is pro- vided,as standard,witha pulsating outputfor active energy retransmission. In addition a 2-wire RS485 communication port is available as an option. Model Range code System Power supply Output 1 Output 2 Option Type Selection Range codes VV2 (*): 400VLL AC, 90A (by current sensor) VV3 (**): 400VLL AC, 150A (by current sensor) VV5 (**): 400VLL AC, 250A (by current sensor) System 3 (*):balanced and unbalanced load: 3-phase, 4-wire 3-phase, 3-wire 2-phase, 3-wire 1-phase, 2-wire Power supply X (*): Self power supply from 18V to 260VAC VLN, 45 to 65 Hz (connection VL1-N) Output 1 O (*):Single static output (opto-mosfet) Output 2 X (*): None S (**): RS485 port Options X (*): None (*) as standard. (**) on request. Specifications are subject to change without notice EM2172R DS ENG 2205121
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