CMC 356 Reference Manual406.2 Insulation CoordinationTable 6-2:Insulation coordination Insulation CoordinationOvervoltage category IIPollution degree 2 (except for Binary Inputs)Insulation of functiongroups on front panel toground (GND)11 Functional groups on CMC 356 front panel:VOLTAGE OUTPUT, CURRENT OUTPUT (A, B), AUX DC, BINARY OUTPUT,BINARY / ANALOG INPUT, ANALOG DC INPUT- Basic insulation with maximum voltage of600 Vrms to ground- Clearance: > 3 mm (0.12 ")- Creepage: > 6 mm (0.24 ")- Test voltage: 2200 VrmsInsulation of functionalgroups on front panel fromeach other- Working insulation- Clearance: > 1 mm (0.04 ")- Creepage: > 1 mm (0.04 ")- Test voltage: 1500 VDCMeasurement category(BINARY / ANALOGINPUTS)- CAT III / 300 Vrms- CAT IV / 150 Vrms
