Talema AC1020 20 amp current transformer Datasheet

AC1020 • 20 Amp Current Transformer
Low Cost 50/60Hz Current Transformers
Applications
• Sensing Overload Current
• Ground fault detection
• Metering
• Analog to Digital Circuits
• Competitive pricing due to high volume
production
• Manufactured in an ISO-9001:2000,
TS-16949:2002 and ISO-14001:2004
certified Talema facility
• Fully RoHS compliant
Electrical Specifications @ 20°C ambient
E lectrical S p ecificatio n s
Primary Current
Turns Ratio
Volt per Amp Ratio at 20A for 100 ohm load
Volt per Amp Ratio at 2A for 100 ohm load
DC Resistance at 20°C
Dielectric Withstanding Voltage (Hi-pot)
20A nom., 60 A max.
1000:1 nominal
0.100 V/A
0.097 V/A
41.8 ohms
4KVrms
Mechanical Specifications
E n viro n men tal S p ecificatio n s
Polycarbonate
Epoxy
Conforms to UL94-VO
Pins Ø 0.80mm
Marking
TALEMA
Date Code (W/Y)
AC1020, Dot at start pin
Approximate Weight
Tolerance
Storage Temperature
Insulation Resistance
10000
16.3 grams
±0.2mm
Output Volts vs Input Current
For various ohmic loads
1000
100
10
10
Infinity
10K
5K
0
200
400
600
800
1000
100
1000
Percent ratio error in %
2K
500
1K
200
Typical Excitation Curve
(AC1005~AC1020)
50
100
1
100
0.1
0.01
1
10
100
Input Current in Amps
Dimensions
11.12
23.80
Sec RMS Exciting Voltage in Volts
Output Voltage in Volts
100
-55° to +130°C
100 megohms min.
%RE vs RL at Rated primary current
(AC1020)
Load Resistance RL in ohms
C a se
Encapsulant
Flammibility
Terminals
10
1
0.1
0.01
0.1
1
10
23.80
Sec RMS Exciting current in mA
TALEMA INDIA
W/Y
AC1020
5±1mm
Ø9.50
2
3
15.24
1
Notes:
1) Unless requested, the terminating resistor and the one-turn
primary are not supplied
2) Pin 3: Normally for mechanical support only but will be
used on center tapped designs
Ø 0.813
1
1.75
I - Turn
Primary
20A
20mA
7.62
RL
1/8W
2.0V
100 ohms
2
Germany: Int.+49 89 - 841 00-0 • Ireland: Int.+35 374 - 954 8666 • Czech Rep: Int.+420 377 - 338 351 • India: Int.+91 427 - 244 1325
http://www.talema-nuvotem.com
(06-06)CT’s\AC1020
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