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The performance specifications are nominal and conform to acceptable industry standards. For applications at conditions beyond these specifications, consult the local Johnson Controls office.
Johnson Controls, Inc. shall not be liable for damages resulting from misapplication or misuse of its products. © 2015 Johnson Controls, Inc. www.johnsoncontrols.com
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System 450™ Control Modules with Analog Output (Continued)
System 450 Control Series
Technical Specifications
C450CPN-3C and C450CQN-3C Control Modules with Analog Output
Product C450CPN-3C and C450CQN-3C: System 450 Control Module models are sensing controls and operating controls
with LCD, four-button touchpad, and SPDT analog output
C450CPN-3C: Control Module with one analog output
C450CQN-3C: Control Module with two analog outputs
Power Consumption C450CPN-3C: 1.3 VA maximum using 0 to 10 V out; 1.5 VA maximum using 4 to 20 mA out
C450CQN-3C: 2.0 VA maximum using 0 to 10 V out; 2.4 VA maximum using 4 to 20 mA out
Supply Power Internal Supply Power: C450YNN-1C Power Supply Module
External Supply Power: 24 VAC (20 to 30 VAC) Safety Extra-Low Voltage (SELV) (Europe), Class 2 (North
America), 50/60 Hz, 10 VA minimum
Note: A System 450 control module or module assembly can use an internal or an external supply power source, but
must not be connected to both simultaneously.
Ambient Operating Conditions Temperature: -40 to 66C (-40 to 150F) when using 0 to 10 VDC outputs;
-40 to 40C (-40 to 104F) when using 4 to 20 mA outputs
Humidity: Up to 95% RH noncondensing; maximum dew point 29C (85F)
Ambient Shipping and Storage Conditions Temperature: -40 to 80C (-40 to 176F)
Humidity: Up to 95% RH noncondensing; maximum dew point 29C (85F)
Input Signal 0 to 5 VDC for humidity sensors and static pressure transducers
0.5 to 4.5 VDC for ratiometric pressure transducers
1,035 ohms at 25C (77F) for A99 PTC temperature sensors
1,000 ohms at 21.1C (70F) for TE-6xxx Nickel temperature sensors
Analog Output Voltage Mode (0–10 VDC):
10 VDC maximum output voltage
10 mA maximum output current
Requires an external load of 1,000 ohms or more
The AO operates in Voltage Mode when connected to devices with impedance greater than 1,000 ohms. Devices
that fall below 1,000 ohms may not operate as intended with Voltage Mode applications.
Current Mode (4–20 mA):
Requires an external load between 0 to 300 ohms
The AO operates in Current Mode when connected to devices with impedance less than 300 ohms. Devices that rise
above 300 ohms may not operate as intended with Current Mode applications.
Analog Input Accuracy Resolution: 14 bits
Control Construction Independently mounted control, surface mounted with Lexan® 950 enclosure suitable for DIN rail mounting or direct
mounting to a hard, even surface.
Dimensions (H x W x D) 127 x 61 x 61 mm (5 x 2-3/8 x 2-3/8 in.)
Weight C450CPN-3C: 195 g (0.43 lb)
C450CQN-3C: 195 g (0.43 lb)
Compliance North America: cULus Listed; UL 60730, File E27734;
FCC Compliant to CFR47, Part 15, Subpart B, Class B
Industry Canada (IC) Compliant to Canadian ICES-003, Class B limits
Europe: CE Mark – Johnson Controls, Inc. declares that this product is in compliance with the essential
requirements and other relevant provisions of the EMC Directive and the Low Voltage Directive.
Australia: Mark: C-Tick Compliant (N1813)