The 9143 series compact Ex i power supply is used for the intrinsically safe supply of power to field
devices, e.g. three- or four-conductor transmitters, solenoid valves, light barriers and controllers.
It delivers stable, adjustable output voltage via intrinsically safe outputs.
Max. voltage Uo: 6.5 V
Max. current Io: 200 mA
Max. power Po: 1.3 W
Max. permissible external capacity Co for IIC: 25??F
Max. permissible external capacity Co for IIB: 570??F
Max. permissible external cap.I: 1000??F
Max. permissible external inductance Lo for IIC: 0.82 mH
Max. permissible external inductance Lo for IIB: 3.71 mH
Max. permissible external induc.I: 11 mH
Internal capacitance: Negligible
Internal inductance: Negligible
Safety-related max. voltage: 253 V
Auxiliary Power
Auxiliary power: 24 V AC / DC
Auxiliary power voltage range: 20 to 28 V AC, 18 to 35 V DC
Auxiliary power AC frequency range: 48 – 62 Hz
Auxiliary power consumption: 2.6 W
Polarity reversal protection: Yes (DC)
Auxiliary power indication: Green LED
Galvanic Isolation
Test voltage: Acc. to IEC EN 60079-11
Output to power supply: 1.5 kV
Output
Min. nominal voltage: 4 V
Max. nominal voltage: 5.6 V
Max. nominal current In output: 160 mA
Current limiting: If the max. nominal current is reached the output voltage is set to 0 V.