Operating Instructions

Chapter 2—Hardware Features
Compact Series Specifications
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44
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Siemens Industry, Inc.
Owner's Manual
553-104
Building Technologies
2018-10-01
Electrical
Power Requirements 24 Vac ±20% input @ 50/60 Hz
Power Consumption (Maximum) PXC-16: 18 VA @ 24 Vac
PXC-24: 20 VA @ 24 Vac
PXC-36: 35 VA 24 Vac
AC Power and Digital Outputs NEC Class 1 Power Limited
Communication and all other I/O NEC Class 2
Digital Input
Contact Closure Sensing
Dry Contact/Potential Free inputs only
Does not support counter inputs
Digital Output Class 1 Relay
Analog Output 0 to 10 Vdc
Universal Input (UI) and Universal
Input/Output (U)
Analog Input
Voltage (0-10 Vdc)
Current (4-20 mA)
1K Ni RTD @ 32°F
1K Pt RTD (375 or 385 alpha) @ 32°F
10K NTC Type 2 or Type 3 Thermistor @ 77°F
100K NTC Type 2 Thermistor @ 77°F
Digital Input
Pulse Accumulator
Contact Closure Sensing
Dry Contact/Potential Free inputs only
Supports counter inputs up to 20 Hz
Analog Output (Universal Input/Output (U) points only)
Voltage (0-10 Vdc)
Super Universal (X)
Analog Input
Voltage (0-10 Vdc)
Current (4-20 mA)
1K Ni RTD @ 32°F
1K Pt RTD (375 or 385 alpha) @ 32°F
10K NTC Type 2 or Type 3 Thermistor @ 77°F
100K NTC Type 2 Thermistor @ 77°F
Digital Input
Pulse Accumulator
Contact Closure Sensing
Dry Contact/Potential Free inputs only
Supports counter inputs up to 20 Hz
Analog Output
Voltage (0-10 Vdc)
Current (4-20 mA)
Digital Output (requires
an external relay)
0 to 24 Vdc, 22 mA max.