AC1025 鈥?25 Amp Current Transformer
Low Cost 50/60Hz Current Transformers
Applications
鈥?Sensing Overload Current
鈥?Ground fault detection
鈥?Metering
鈥?Analog to Digital Circuits
鈥?Competitive pricing due to high volume
production
鈥?Manufactured in an ISO-9001:2000,
TS-16949:2002 and ISO-14001:2004
certified Talema facility
鈥?Fully RoHS compliant
Electrical Specifications @ 20擄C ambient
E lectrical S p ecificatio n s
Primary Current
Turns Ratio
Volt per Amp Ratio at 25A for 100 ohm load
Volt per Amp Ratio at 2.5A for 100 ohm load
DC Resistance at 20擄C
Dielectric Withstanding Voltage (Hi-pot)
C a se
Encapsulant
Flammibility
Terminals
Marking
Approximate Weight
Tolerance
25A nom., 75A max.
1000:1 nominal
0.100 V/A
0.098 V/A
48 ohms
4KVrms
E n viro n men tal S p ecificatio n s
Storage Temperature
Insulation Resistance
-55擄 to +130擄C
100 megohms min.
Mechanical Specifications
Polycarbonate
Epoxy
Conforms to UL94-VO
Pins 脴 1.0mm
TALEMA
Date Code (W/Y)
AC1025, Dot at start pin
%RE vs RL at Rated primary current
(AC1025)
10000
35.5 grams
鹵0.2mm
For various ohmic loads
Load Resistance RL in ohms
1000
Output Volts vs Input Current
100
100
Infinity
Output Voltage in Volts
10K
5K
10
0
100
200
300
400
500
600
10
2K
1K
500
100
Percent ratio error in %
Typical Excitation Curve
(AC1025~AC1030)
1
200
100
50
Sec RMS Exciting Voltage in Volts
10
0.1
1
10
Input Current in Amps
100
1
Dimensions
30.20
14.30
0.1
0.01
0.1
1
10
100
Sec RMS Exciting Current in mA
30.20
TALEMA INDIA
W/Y
AC1025
脴11.40
5鹵1mm
脴 1.016
2
3
20.32
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
25A
25mA
3
2
R
L
1/8W
2.5V
100 ohms
Germany: Int.+49 89 - 841 00-0 鈥?Ireland: Int.+35 374 - 954 8666 鈥?Czech Rep: Int.+420 377 - 338 351 鈥?India: Int.+91 427 - 244 1325
http://www.talema-nuvotem.com
(06-06)CT鈥檚\AC1025
1
