Item
NFC Control Relay 3-Phases
Ambient Air Temperature For Storage
-40-70°C
Setting Accuracy of Time Delay
+/- 3 % 10 s...60 min, +/- 300 ms 0...10 s
Reset Time
1500 ms at maximum voltage
Supply Voltage Limits
166.4-576 V AC line to line, 96-332.4 V AC line to neutral
Relay Monitored Parameters
phase sequence, phase failure detection, overvoltage detection, undervoltage detection, overfrequency and underfrequency, asymmetry
Overvoltage Category
III IEC 60664-1, III UL 508
Electrical Durability
100000 cycles
Minimum Switching Current
100 mA 6 V
Utilisation Category
AC-15 IEC 60947-5-1, DC-13 IEC 60947-5-1, AC-1 IEC 60947-4-1, DC-1 IEC 60947-4-1
Housing Material
self-extinguishing plastic
Control Type
without test button
Power Consumption In Va
4-4 VA 480 V AC 60 Hz
Pollution Degree
3 IEC 60664-1, 3 UL 508
Insulation Resistance
> 100 MOhm 500 V DC IEC 60255-27
Maximum Measuring Cycle
150 ms measurement cycle as true rms value
Time Delay Type
adjustable 0.1 s...1 min
Mounting Support
35 mm DIN rail conforming to IEC 60715
Repeat Accuracy
+/- 0.5 % input circuit, +/- 3 % time delay
Ip Degree of Protection
IP20 IEC 60529 terminals), IP40 IEC 60529 housing), IP40 IEC 60529 front panel)
Contacts Type And Composition
2 C/O
Contacts Material
cadmium free
Ambient Air Temperature For Operation
-20-60°C
[Uimp] Rated Impulse Withstand Voltage
4 kV 1.2/50µs
Dielectric Test Voltage
2.5 kV AC 50 Hz, 1 min IEC 60255-27
Setting Accuracy of The Switching Threshold
+/- (1.5 % + 1 V)
Maximum Operating Frequency
13.56 MHz
Software Version
V4.4 and above
Maximum Switching Current
8 A AC
Hysteresis
3-3 % fixed phase failure detection
[Us] Rated Supply Voltage
208...480 V AC 50/60 Hz, non self-powered, 120...277 V AC 50/60 Hz, non self-powered
Local Signalling
Un, green LED steady)power ON, R1, amber LED steady)relay energised, R1, amber LED blinking)timing in progress, R2, amber LED steady)relay energised, R2, amber LED blinking)timing in progress, PL, red LED steady)alarm phase failure triggered, PS, red LED blinking)alarm phase sequence failure triggered, UV, red LED steady)alarm undervoltage failure triggered, OV, red LED blinking)alarm overvoltage failure triggered, UF, red LED steady)alarm underfrequency failure triggered, OF, red LED blinking)alarm overfrequency failure triggered, ASYM, red LED steady)alarm asymmentry failure triggered
Adjustment of Asymmetry Threshold
2...20 % of Un selected
[Ui] Rated Insulation Voltage
400 V
Measurement Error
< 0.05 %/Hz with frequency variation, < 0.05 %/°C with temperature variation
[Ith] Conventional Free Air Thermal Current
8A
Maximum Switching Voltage
250 V AC
Relative Humidity
93-97 % 25-55°C IEC 60068-2-30
Measurement Range
208...480 V AC
Threshold Adjustment Voltage
2...20 % of Un selected
Electromagnetic Compatibility
voltage dips and interruptions immunity test - test level: 70 % (25/30 cycles) conforming to IEC 61000-4-11, electrostatic discharge - test level: 6 kV level 3 (contact discharge) conforming to IEC 61000-4-2, radiated radio-frequency electromagnetic field immunity test - test level: 10 V/m level 3 conforming to IEC 61000-4-3, immunity for industrial environments conforming to IEC 61000-6-2, 1 MHz damped oscillating wave - test level: 2.5 kV CM, 1 kV DM criteria B conforming to IEC 61000-4-18, voltage dips and interruptions immunity test - test level: 0 % (0.5...25 cycles) conforming to IEC 61000-4-11, magnetic field at power frequency - test level: 30 A/m (continuous)-300 A/m (1-3 s) level 4 conforming to IEC 61000-4-8, surge immunity test - test level: 2 kV level 4 (differential mode) conforming to IEC 61000-4-5, immunity for residential, commercial and light-industrial environments conforming to IEC 61000-6-1, voltage dips and interruptions immunity test - test level: 40 % (10/12 cycles) conforming to IEC 61000-4-11, voltage interruptions - test level: 0 % criteria C (250/300 cycles) conforming to IEC 61000-4-29, electrical fast transient/burst immunity test - test level: 4 kV criteria B (direct) conforming to IEC 61000-4-4, emission standard for industrial environments conforming to IEC 61000-6-4, surge immunity test - test level: 4 kV level 4 (common mode) conforming to IEC 61000-4-5, electrostatic discharge - test level: 8 kV level 3 (air discharge) conforming to IEC 61000-4-2, conducted RF disturbances level 3 conforming to IEC 61000-4-6
Tightening Torque
0.6-1 N.m IEC 60947-1, 5.3-8.8 lbf.in IEC 60947-1
Switching Capacity In Va
2000 VA
Mechanical Durability
10000000 cycles
Alarm Threshold
166...576 V adjustable overvoltage and undervoltage detection (line to line);, 96...332 V adjustable overvoltage and undervoltage detection (line to neutral);, 5...150 V adjustable asymmetry;, 45...66 Hz adjustable overfrequency or underfrequency;
Vibration Resistance
0.075 mm 10-58.1 Hz) not in operation IEC 60068-2-6, 1 gn 58.1-150 Hz) not in operation IEC 60068-2-6, 0.035 mm 10-58.1 Hz) in operation IEC 60068-2-6, 0.5 gn 58.1-150 Hz) in operation IEC 60068-2-6
Immunity To Microbreaks
10 ms
Range of Product
Harmony Control Relays
Product Compatibility
NFC enabled mobile device
Product or Component Type
NFC control relay
Connections - Terminals
screw terminals, 2 x 0.5...2 x 2.5 mm² AWG 20...AWG 14) solid without cable end, screw terminals, 2 x 0.5...2 x 1.5 mm² AWG 20...AWG 16) flexible with cable end, screw terminals, 1 x 0.5...1 x 3.3 mm² AWG 20...AWG 12) solid without cable end, screw terminals, 1 x 0.5...1 x 2.5 mm² AWG 20...AWG 14) flexible with cable end
Software Designation
Zelio NFC downloadable from Google Play store)
Run-Up Delay At Power-Up
650 ms
Mounting Position
any position
Shock Resistance
15 gn 11 ms) not in operation IEC 60068-2-27, 5 gn 11 ms) in operation IEC 60068-2-27
Supply Frequency
50...60 Hz +/- 10 %