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Monitoring Relays AC Current Transformer Type E 82-20
* 3 input ranges in one unit: 0 - 5 AAC 0 - 10 AAC 0 - 25 AAC or 0 - 20 AAC 0 - 30 AAC 0 - 50 AAC * Output 4-20 mADC * Easy interface to PLC or setpoint relays * For mounting on DIN-rail in accordance with DIN/EN 50 022 * 22.5 mm small Euronorm housing
Product Description
Small AC current metering transformer with 3 knob selectable ranges. Output from the transformer is 4-20 mADC in accordance with IEC 60381-1. Can be used with relays DIB01, PIB01, DIC01, PIC01 or S183 or directly connected to a PLC. Power supply ON is indicated by a green LED. 12 mm hole for isolated current carrying wire makes it suitable for most applications. For mounting on DIN-rail or directly on surface by screws.
Ordering Key
Type Output Input current (highest range)
E 82-20 50
Type Selection
Input current 0- 5 AAC 0-10 AAC 0-25 AAC 0-20 AAC 0-30 AAC 0-50 AAC Output current 4 - 20 mA 4 - 20 mA 4 - 20 mA 4 - 20 mA 4 - 20 mA 4 - 20 mA Switch position 5 10 25 20 30 50 Type no. E82-20 25 E82-20 25 E82-20 25 E82-20 50 E82-20 50 E82-20 50
Input Specifications
Current range Max. current (continuously) Max. overload current (t = 30 s) Overvoltage category Frequency range 0 - 5 AAC 50 AAC 150 AAC III (IEC 60664) 40 Hz - 1 kHz 0 - 10 AAC 50 AAC 150 AAC III (IEC 60664) 40 Hz - 1 kHz 0 - 20 AAC 100 AAC 300 AAC III (IEC 60664) 40 Hz - 1 kHz 0 - 25 AAC 50 AAC 150 AAC III (IEC 60664) 40 Hz - 1 kHz 0 - 30 AAC 100 AAC 300 AAC III (IEC 60664) 40 Hz - 1 kHz 0 - 50 AAC 100 AAC 300 AAC III (IEC 60664) 40 Hz - 1 kHz
Output Specifications
Output current (sink) Maximum output current Tolerance of output current @ 50 Hz Temperature variation Frequency variation Power supply (loop voltage) 4-20 mADC 35 mADC 2% 400 ppm/C 10 ppm/Hz 10-40 VDC
General Specifications (cont.)
Environment Degree of protection Pollution degree Operating temperature Housing Dimensions Material Weight Approval CE Marking EMC Immunity IP 20 3 -20 to +50C (-4 to +122F) 22.5 x 56 x 49 mm ABS 70 g UL Yes Electromagnetic Compatibility Acc. to EN 61000-6-1 (tolerance of output current: 2%) Acc. to EN 61000-6-2 (tolerance of output current: 5%) Acc. to EN 61000-6-3
General Specifications
Power ON delay Reaction time <1s < 100 ms worst case reaction time may be up to 5 x LED, green
Indication for Power supply ON
Emission
Specifications are subject to change without notice (15.09.06)
1
E 82-20
Mode of Operation
The E 82-20 is a small AC current metering transformer with standardized 4-20 mADC output. This makes it very useful as an AC current interface to a PLC with 4-20 mADC input. Used with relays DIB01, PIB01, DIC01, PIC01 or S 183, one or more setpoints can monitor the current and signal alarm. S 183 also provides the DC voltage supply for the E 82-20. In the 5 A range the E 82-20 is often used as a 4-20 mADC signal converter for larger standard AC current transformers with 5 AAC secondary output. The metered conductor is drawn through the central hole of the current metering transformer. It is possible to measure currents below the nominal range by drawing the conductor through the hole several times. If the conductor is drawn through the central hole e.g. 5 times, the transformer will register 5 AAC when the current in the conductor is 1 AAC.
Input/Output Curve
Output (mADC)
Resistance/Voltage Curve
Max. R load
()
20 16 12 8 4 50 100 Input (% of range)
(V)
Loop voltage
Max. load resistance versus loop voltage
Wiring Diagram
Dimensions
1 I ~ I 2 R load
55.4
22.5
47.4
15
56
O 12
o12
49
4 x o3.4
20
2
Specifications are subject to change without notice (15.09.06)

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