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Average RMS AC Voltage Transducer
DIN RAIL / PANEL MOUNT, AVERAGE RMS
SPECIFICATIONS
Basic Accuracy:........................ 0.5%
Calibration:................Average Sensing, RMS Calibrated
Thermal Drift:........................... 500 PPM/°C
Operating Temperature:........... 0°C to +60°C
Installation Category:............... CAT II
Pollution Degree:...................... 2
Response Time: ...................... 250 ms
Altitude:.................................... 2000 meter max.
Insulation Voltage:.................... 2500 Vdc
Supply Voltage:..............24 Vdc ±10%
Frequency Range:.........20 Hz - 5 KHz
Output Load:......0-5 VDC................ 2 K ? or greater
4-20 mADC........... 0 - 300 ?
Relative Humidity:....80% for temperatures up to
31°C and decreasing linearly to 50% at 40°C
Supply Current:
CR4810:......................Typical 15mA Max 30mA
CR4820:......................Typical 23mA Max 45mA
CR4850:......................Typical 25mA Max 110mA
CR4860:......................Typical 55mA Max 110mA
CR4870:......................Typical 25mA Max 110mA
CR4880:......................Typical 55mA Max 110mA
1
Cleaning:.......................Water-dampened cloth
MTBF:......................... Greater than 100 K hours
1.42
(36)
0.14
(3.5)
Torque Specs.:................ 3.0 inch lbs. (0.4Nm)
Weight:.............................0.5 lbs.
C
9
OUTPUT 1
8
7
6
9
OUTPUT
8
7
6
2
3
4
2.874
(73)
(73)
9
8
7
6
5
1.06
(26.8)
3.5)
0.79 1.22
(20) (31)
1
INPUT 1 2
3
4
+ -
5
SUPPLY
CR4810 Single Element - 0 - 5 VDC Output
1 + -
INPUT 1 2
3
4
+ -
5
SUPPLY
CR4820 Single Element - 4-20 mA DC
Output
2.99 2.99 (76) for CR4640
(76)
2.20(56)CR4810/11/20
2.20 (56) for CR4620
CR4850/60/70/80
L1
L2
L3
1
2
3
4
9
8
7
6
5
+
L1-L2
-
L2-L3
L3-L1
L1
L2
L3
1
2
3
4
9
8
7
6
5
+
+
-
L3-L1
-
L2-L3
+
L1-L2
+ -
-
SUPPLY
SUPPLY
0.20
(5.1)
3.268
(83)
CR4850 3 Element, 3 Wire - 0 - 5 VDC Outpu t
CR4860 3 Element, 3 Wire - 4-20 mA DC Output
Dimensions for Models CR4850, 4860, 4870, 4880
(shown)
L1
L2
L3
N
1
2
3
4
9
8
7
6
5
L1-N
+
L2-N
-
L3-N
L1
L2
L3
N
1
2
3
4
9
8
7
6
5
+
+
+
L3-N
L2-N
L1-N
+ -
-
-
-
SUPPLY
CR4870 3 Element, 4 Wire - 0 - 5 VDC Output
SUPPLY
CR4880 3 Element, 4 Wire - 4 - 20 mA DC Output
1.42
(36)
OUTLINE DRAWING
USE CR MAGNETICS LOW AND MEDIUM VOLTAGE POTENTIAL TRANSFORMERS (SECTION G)
CONNECTION DIAGRAM
NOTE: The building installation must have a switch or circuit-breaker that is in close proximity and within easy reach of the operator. The switch or circuit breaker
shall be marked as the disconnecting device for the equipment.
CR Magnetics, Inc. 3500 Scarlet Oak Blvd. St. Louis MO USA 63122 V: 636-343-8518 F: 636-343-5119
Web: http://www.crmagnetics.com
45
E-mail: sales@crmagnetics.com
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