Chapter 3—Installation and Wiring26 Power Xpert C445 Global Motor Management Relay MN042003EN—January 2019 www.eaton.comMotor Wiring Connections—TypicalThis section shows typical diagrams for basic overloadapplications. Each C445 system consists of a base ModuleC445B… and a Measurement Module C445MA…,C445MB…, or C445MC…Options such as the user interface C445U…, currenttransformers, and potential transformers may be connectedto meet the operating requirements of the customerapplication.The C445 can be configured utilizing external currenttransformers (CT’s) and potential transformers (PT’s).Current transformers and/or potential transformers may beconnected to any C445 application. Please follow the devicemanufacturer’s instructions for connection information.The C445 will support optional mains voltage monitoring withphase voltage connections to Terminals V1, V2, and V3 onany Measurement Module.The C445 will support optional motor positive temperaturecoefficient (PTC) thermistors with device connections toTerminals T1 and T2 on any Measurement Module to provideadditional levels of protection to any application.Figure 34. Terminal FasteningControl signal terminal connector specifications apply to all connectors:C445BA...N L PE Q1 Q2 Q3 C Q3 I1 I2 I3 I4 C D0 D1C445BD...24 0 PE Q1 Q2 Q3 C Q3 I1 I2 I3 I4 C QV 24VC445M...V1 V2 V3 T1 T21 x 0.2–2.5 1 x 0.2–2.5 1 x 24–12 7.0 0.275 0.6 x 3.5 mm PH0, PZ0 0.4–0.5 3.5–4.4Nm lb-inM2, 5inchmmAWGmm 2 mm 2UL-use
