Current and Voltage Controls
3-Phase True RMS, Multi-Function
Type EUY
• True RMS measuring on own power supply
• Frequency range 45-440 Hz
• Monitoring relay and 3-phased measuring relay for
over/under voltage control (closed circuit)
• Monitors phase asymmetry
• Monitors phase loss/phase sequence
• Measures if all 3 phase-phase voltages are within
set limits
• Upper and lower limits separately adjustable
• Adjustable asymmetry
• 2 separately adjustable time functions (0.1-30 s)
• Output: 2 x 5 A SPDT relays (one relay for each level)
• For mounting on DIN-rail in accordance with
DIN/EN 50 022
• 45 mm Euronorm housing
• LED-indication for power supply ON
• Two LED's indicating fault and/or status of the
2 relay outputs (flashing when timing)
Product Description
Ordering Key
EUY C 400
True rms 3-phase monitoring power supply as well as of a Housing
relay for separate over and un- distorted power supply. Fre- Function
der voltage, asymmetry and quency range 45 to 440 Hz. Type
phase failure control. The With relays measuring aver- Output
advantage of true rms meas- age value (EUB, EUC) correct Power supply
uring is that correct values are values are only obtained for
always obtained irrespective true sinusoidal power sup-
of the waveform of the meas- plies. Often used in motor ap-
ured voltage, i.e. the EUY plications where it is impor-
measures the correct rms tant to detect the reliability of
value of a normal sinusoidal the electrical power.
Type Selection
Mounting
Output
Supply:
115 VAC
Supply:
220 VAC
Supply:
240 VAC
Supply:
400 VAC
Supply:
480 VAC
Supply:
600 VAC
Supply:
690 VAC
For DIN-rail 2 x SPDT
EUY C 115 EUY C 220
EUY C 240
EUY C 400 EUY C 480 EUY C 600 EUY C 690
Input Specifications
Output Specifications
Output
Rated insulation voltage
Upper limit
2 x SPDT relay
Input U, V, W
L1 - L2 - L3
measures on own supply
phase sequence not arbitrary
45-440 Hz
250 VAC (contact/elect.)
Terminals 25/26/28
Terminals 15/16/18
Frequency range
Lower limit
Measuring ranges
115
220
240
400
480
600
690
92-132 VAC
176-253 VAC
192-276 VAC
320-460 VAC
384-552 VAC
480-690 VAC
552-794 VAC
Contact ratings (AgCdO)
µ (micro gap)
AC 1 5 A, 250 VAC
(True rms)
Resistive loads
DC 1 5 A, 24 VDC
Small inductive loads AC 15 2 A, 250 VAC
DC 13 3 A, 24 VDC
Mechanical life
Electrical life
≥ 40 x 106 operations
≥ 105 operations
Range
(at max. load)
Upper level (sep. adjustable) 80 - 115%
Operating frequency
≤ 7200 operations/h
Lower level (sep. adjustable) 80 - 115%
Asymmetry (sep. adjustable) 5-25% of nominal range
Dielectric strength
Dielectric voltage
Phase loss (phase-phase)
70% of nominal range
2 kVAC (rms)
Rated impulse withstand volt. 4 kV (1.2/50 µs)
Specifications are subject to change without notice (26.10.99)
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