Appendix A—Technical Data and SpecificationsPower Xpert C445 Global Motor Management Relay MN042003EN—October 2016 www.eaton.com 165Appendix A—Technical Data and SpecificationsCommunications Isolation NotesThe isolation between the Modbus Port and BCM electronicsis functional isolation only. All connections to the Modbusterminal shall meet PELV requirements.The isolation between the PROFIBUS Port and BCMelectronics is functional isolation only. All connections tothe PROFIBUS Port terminal shall meet PELV requirements.The isolation between the Ethernet Port and BCMelectronics is functional isolation only. All connections to theEthernet Port terminal shall meet SELV/PELV requirements.Table 68. Environmental SpecificationsTable 69. Power Supply Specifications SummaryNotes1 Fuse information—Recommend 1 A slow blow fuse for AC control power. Interrupting capability should begreater than available branch current.2 UL Listed Isolated Class 2/PELV Power Supply Rated Maximum 24 Vdc. Wiring must meetPELV requirements.3 Base Control Module + Measurement Module + User Interface + Communication Card.Description SpecificationTemperature –40 °C to 85 °C (–40 °F to 185 °F), non-operating–40 °C to 60 °C (–40 °F to 140 °F), operatingNote: C445UM Monitoring User Interface LCD may not operate below –20 °C butbuttons will operate across the operating temperature range.Operating Humidity 5–95% non-condensingAltitude NEMA ICS1 2000 meters (6600 feet)Shock IEC 60068-2-27 15 g any direction for 11 milliseconds, non-operatingVibration IEC 60068-2-6 5 g non-operating and 3 g operating in any directionPollution Degree 3Protection Degree Internal Components: IP20User Interface: IP54 & UL Type12Cooling Convection (natural)Description SpecificationAC Control Power 1 Rated supply voltage (operating range):110–120 Vac/60 Hz, (94–132 Vac)220–240 Vac/50 Hz, (187–264 Vac)Requirement of an external control power transformer when the productis used above 150 Vac (220–240 Vac)DC Control Power 2 Rated supply voltage (operating range):24 Vdc Nominal (18–30 Vdc)The common terminal of the 24 V power supply shall be earthedMax. Power Consumption 3 8 WAC Control Power Input ImpulseWithstand Voltage UimpSee Table 80.