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Table 333: C450CPN-4C and C450CQN-4C Control Modules with Analog Output technical specifications Specification Description 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 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. Analog Output 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-4C: 195 g (0.43 lb) C450CQN-4C: 195 g (0.43 lb) Compliance United States: cULus Listed; UL 60730-1, File E27734; FCC Compliant to CFR47, Part 15, Subpart B, Class B Canada: cULus Listed; CAN/CSA-E60730-1, File E27734; Industry Canada (IC) Compliant to Canadian ICES-003, Class B limits Europe: CE Mark – Johnson Controls declares that this product is in compliance with the essential requirements and other relevant provisions of the EMC Directive. Australia and New Zealand: RCM mark, Australia/NZ Emissions Compliant 312 Refrigeration Products Catalog

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