AC1050 • 50 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
50A nom., 125A max.
Turns Ratio
1000:1 nominal
Volt per Amp Ratio at 50A for 100 ohm load
0.100 V/A
Volt per Amp Ratio at 5A for 100 ohm load
0.098 V/A
DC Resistance at 20°C
49.3 ohms
Dielectric Withstanding Voltage (Hi-pot)
4KVrms
Mechanical Specifications
C a se
Encapsulant
Flammibility
Terminals
Marking
Approximate Weight
Tolerance
Polycarbonate
Epoxy
Conforms to UL94-VO
Pins Ø 1.0mm
TALEMA
Date Code (W/Y)
AC1050, Dot at start pin
E n viro n men tal S p ecificatio n s
Storage Temperature
Insulation Resistance
-55° to +130°C
100 megohms min.
%RE vs RL at Rated primary current
(AC1050)
10000
47.3 grams
±0.2mm
Load Resistance RL in ohms
1000
Output Volts vs Input Current
For various ohmic loads
100
100
Infinity
Output Voltage in Volts
10K
5K
2K
1K
500
200
100
10
0
200
400
600
800
1000
Percent ratio error in %
10
Typical Excitation Curve
(AC1040~AC1050)
100
1
50
Sec RMS Exciting Voltage in Volts
10
0.1
10
Input Current in Amps
100
1
Dimensions
34.90
14.30
0.1
0.01
0.1
1
10
Sec RMS Exciting Current in mA
34.90
TALEMA INDIA
W/Y
AC1050
Ø14.60
5±1mm
Ø 1.016
2
3
25.40
1
2.08
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
10.16
I - Turn
Primary
50A
50mA
3
2
R
L
1/4W
5.0V
100 ohms
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\AC1050
TALEMA [ NUVOTEM TALEMA ]
