Electronic Current-Transformer Type STWA1SEH
AC Electronic current transormer, adjustable limit AC 2-10 A, transistor-output, LED
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Product description
The STWA1SEH is used where current flow has to be detected, e.g. to report exceeding of a limit, to switch off a machine or just report the current flow.
The STWA1SEH has an integrated electronics with transistor-output. The limit is adjustable 2 - 10 A with a potentiometer. A LED displays the state.
- adjustable switching point 2-10 A
- built-in LED displays state of the output
- isolated transistor-output max. DC 40 V / 40 mA
- output van be directly connected to a digital input of a PLC
- integrated diode for reverse voltage protection
- electrival connection via screwless pluggable terminals
- 2-wire, no supply voltage required
- DIN-rail-mount or with screws
- plug-in current transformer (Ø 11 mm)
- max. overload 100 A continuously, 300 A max. 10 s.
Technical Data
Output
transistor
Switching voltage
max. DC 40 V
Switching current
max. DC 40 mA
Voltage drop ( ON )
max. 1,5 V
Leak current ( OFF )
max. 10 μA
Switching Point
Switch-on-point at Tu = 25°C
2 ... 10 A ±25 % (adjustable, red LED on)
Hysteresis
app. 5 ... 30 %
Repeat accuracy
± 2 %
Temperature factor
< 0.06 % / K
Switch-on delay
0,2 ... 2 s
Switch-off delay
≤ 0,3 s
Frequency
Functional range
50 ... 60 Hz
Nominal frequency
50 Hz
Error
≤ 3 %/Hz
Overload Capacity
continuously
100 A
max. 10 s
300 A
Test Conditions (EN 61010)
Rated impulse withstand voltage
4000 V
Overvoltage category
III
Pollution degree
2
Rated insulation voltage Ui
250 V
On-period
100 %
Rated ambient temperature range
0 ... 55 °C
EMV-immunity
EN 61326 (industrial electromagnetic environment)
EMC-emission
EN 61326 CISPR 11 class B
Vibration resistance EN 60068-2-6
2...25 Hz ±1,6 mm
25...150 Hz 5 g
Housing
Design
H
Line connection
each 1 x 0,08 mm2 to,5 mm2
protection terminals
IP 20
Mounting position
any
Weight
app. 90 g
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