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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™ Series Control Module with Network Communications
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System 450 Control Series
Selection Chart
Refer to the System 450 Compatible Sensors, Transducers, and Accessories Catalog Page (LIT-1900662) for temperature sensors, humidity
sensors, and pressure transducers compatible with the System 450 Control Modules.
Repair Information
If the System 450™ Control Module with Ethernet or RS485 Modbus Communication fails to operate within its specifications, replace the unit.
For a replacement System 450™ Control Module, contact a Johnson Controls® representative.
Technical Specifications
Communications System 450 Modules and Accessories Ordering Information
Product Code
Number
Product Description
C450CEN-1C Control Module with Ethernet Communications, LCD, and Four-Button Touchpad UI. (No onboard outputs available on control modules
with network communications capabilities.)
C450CRN-1C Control Module with RS485 Modbus Communications, LCD, and Four-Button Touchpad UI. (No onboard outputs available on control
modules with network communications capabilities.)
BKT287-1R DIN Rail; 0.30 m (12 in.) long
BKT287-2R DIN Rail; 1 m (39-1/3 in.) long
BKT287-3R DIN Rail; 0.61 m (24 in.) long
BKT287-4R DIN Rail; 0.36 m (14 in.) long
PLT344-1R DIN Rail End Clamps (Two clamps)
WHA-C450-100C System 450 module connection extension cable, 100 cm (3.3 ft) long
C450CEN-1C Control Module with Ethernet Communications
Product C450CEN: System 450 control modules are sensing controls and operating controls with LCD and four-button
touchpad UI, Ethernet communications capability, and no outputs.
C450CEN-1C: Control module with Ethernet communications capability
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 66C (-40 to 150F)
Humidity: Up to 95% RH noncondensing; maximum dew point 29C (85F)
Ambient Shipping and Storage
Conditions
Temperature: -40 to 80C (-40 to 176F)
Humidity: Up to 95% RH noncondensing; maximum dew point 29C (85F)
Input Signal 0 to 5 VDC; 1,035 ohms at 25C (77F) for an A99 PTC Temperature Sensor
Analog Input Accuracy Resolution: 16 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 63 x 63 mm (5 x 2-3/8 x 2-3/8 in.)
Weight C450CEN-1C: 207 g (0.46 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; Low Voltage Directive; CISPR22, class B.
Australia: Mark: C-Tick Compliant (N1813)