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A-ISOMETER® IR470LY2-4061 Wiring diagram – Operating elements Technical data A-ISOMETER® IR470LY2-4061 Insulation coordination acc. to IEC 60664-1 Rated insulation voltage AC 630 VRated impulse voltage/pollution degree 6 kV/3Voltage test acc. to IEC 60255 3 kV Voltage ranges Nominal system voltage U
n AC, 3(N)AC 0…793 VRated frequency fn 40…460 HzSupply voltage U
S see ordering informationOperating range of U
s 0.85…1.15 x U
s Frequency range U
s 50…460 HzPower consumption ≤ 3 VA

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5.15.25.35.4 Response values Response value R
an1 (Alarm 1) 10 k Ω …100 k Ω Response value R
an2 (Alarm 2) 35 k Ω …500 k Ω Response time t
an at R
F = 0.5 x R
an and C
e = 1 µF ≤ 1 s Measuring circuit Measuring voltage U
m ≤ 40 VMeasuring current I
m (at R
F = 0 Ω ) ≤ 200 µAInternal DC resistance R
i ≥ 200 k Ω Impedance Z
i at 50 Hz ≥ 180 k Ω Permissible extraneous DC voltage U
fg ≤ 800 V Permissible system leakage capacitance ≤ 20 F 1 - Combined test/reset button "TEST/RESET",short-time pressing ( 2 s) = TEST2 - Power On LED "ON"3 - Alarm LEDs, yellow, light when the value falls below the set response value and flash in case of interruption of the connecting leads E/KE or L1/L2.4 - LED bar graph indicator5 - Outputs
1.4 Test/reset button internal/externalCurrent output for measuring instrument
(scale centre point = 120 k Ω ) 0…400 µALoad ≤ 25 k Ω Switching elements Number of switching elements 2 x 1 changeover contactOperating principle N/O operation / N/C operationFactory setting N/O operationElectrical service life, number of cycles 12000Contact class IIB nach DIN IEC 60255–0-20Rated contact voltage AC 250 V/DC 300 V Making capacity AC/DC 5 ABreaking capacity 2 A, AC 230 V, cos phi = 0.4 – 0.2 A, DC 220 V, L/R = 0.04 sMinimum contact current at DC 24 V 2 mA (50 mW) Operating principle of the alarm relay Fault memory5.1 - N/O operation 5.3 - without fault memory5.2 - N/C operation 5.4 - with fault memory6 - Potentiometer to set the response value R
ALARM1 7 - Potentiometer to set the response value R
ALARM2 8 - Alarm relay 1: N/O operation9 - Alarm relay 1: N/C operation10 - Alarm relay 2: N/O operation11 - Alarm relay 2: N/C operation12 - External test button13 - External reset button or contact bridge for fault memory14 - U General data Shock resistance IEC 60068-2-27
(during operation) 15 g/11 msBumping IEC 60068-2-29
(during transport) 40 g/6 msVibration resistance IEC 60068-2-6
(during operation) 1 g/10…150 HzVibration resistance IEC 60068-2-6
S see ordering information, 6 A fuse recommended15 - External kΩ indicating instrument
(during transport) 2 g/10…150 HzAmbient temperature
(during operation) - 10 °C…+ 55 °CAmbient temperature Wiring diagram – system connection
(during transport) - 40 °C…+ 70 °CClimatic class acc. to DIN IEC 60721-3-3 3K5Operating mode continuous operationMounting any positionConnection screw terminalsConnection properties rigid/flexible 0.2…4 mm

1342

2 /0.2…2.5 mm
2 Degree of protection, internal components (DIN EN 60529) IP 30 Degree of protection, terminals (DIN EN 60529) IP 20Screw mounting 2 x M4DIN rail mounting acc. to DIN EN 60715/IEC 60715Flammability class UL94V-0Product standards DIN EN 61557-8: 1998-05 EN 61557-8: 1997-03, IEC 61557-8: 1997-02, ASTM F 1669M-96Operating manual BP104010Weight approx. 360 g 1 - 3NAC system 4 - AC system AC 0…7200 V2 - 3 AC system with coupling3 AC system device AGH520S
Main catalogue part 1 – 08.2007/Insulation monitoring 51