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)
C a se
Encapsulant
Flammibility
Terminals
Marking
Approximate Weight
Tolerance
20A nom., 60 A max.
1000:1 nominal
0.100 V/A
0.097 V/A
41.8 ohms
4KVrms
E n viro n men tal S p ecificatio n s
Storage Temperature
Insulation Resistance
-55° to +130°C
100 megohms min.
Mechanical Specifications
Polycarbonate
Epoxy
Conforms to UL94-VO
Pins Ø 0.80mm
TALEMA
Date Code (W/Y)
AC1020, Dot at start pin
%RE vs RL at Rated primary current
(AC1020)
10000
16.3 grams
±0.2mm
Load Resistance RL in ohms
1000
Output Volts vs Input Current
100
For various ohmic loads
100
Output Voltage in Volts
10
10
Infinity
10K
5K
1K
2K
500
200
0
200
400
600
800
1000
Percent ratio error in %
1
100
50
Typical Excitation Curve
(AC1005~AC1020)
Sec RMS Exciting Voltage in Volts
100
0.1
10
0.01
1
10
Input Current in Amps
100
1
Dimensions
23.80
11.12
0.1
0.01
0.1
1
10
100
1000
Sec RMS Exciting current in mA
TALEMA INDIA
W/Y
AC1020
Ø9.50
5±1mm
Ø 0.813
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
1
I - Turn
Primary
20A
20mA
2
R
L
1/8W
2.0V
100 ohms
2
3
15.24
1
1.75
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
23.80
7.62
TALEMA [ NUVOTEM TALEMA ]
