7.4.4.72 Pset_SwitchingDeviceTypeEmergencyStop
7.4.4.72.1 Semantic definition
An emergency stop device acts to remove as quickly as possible any danger that may have arisen unexpectedly.
7.4.4.72.2 Applicable entities
- IfcSwitchingDevice/EMERGENCYSTOP
 - IfcSwitchingDeviceType/EMERGENCYSTOP
 
7.4.4.72.3 Properties
| Name | Property Type | Data Type | Description | |
|---|---|---|---|---|
| SwitchOperation | IfcPropertyEnumeratedValue | PEnum_SwitchingDeviceEmergencyStopType | 
 Indicates operation of emergency stop switch.  | 
|
| NumberOfPhases | IfcPropertySingleValue | IfcCountMeasure | 
 Number of phases that the equipment operates on.  | 
|
| ReferenceEnvironmentTemperature | IfcPropertyBoundedValue | IfcThermodynamicTemperatureMeasure | 
 Ideal temperature range.  | 
|
| BreakingCapacity | IfcPropertySingleValue | IfcElectricCurrentMeasure | 
 The current that a fuse, circuit breaker, or other electrical apparatus is able to interrupt without being destroyed or causing an electric arc with unacceptable duration.  | 
|
| NumberOfEarthFaultRelays | IfcPropertySingleValue | IfcCountMeasure | 
 Indicates the number of relays used for preventing earth fault.  | 
|
| NumberOfEmergencyButtons | IfcPropertySingleValue | IfcCountMeasure | 
 The number of emergency buttons built in the device.  | 
|
| NumberOfRelays | IfcPropertySingleValue | IfcCountMeasure | 
 Indicates number of relays built in the device.  | 
|
| NumberOfOverCurrentRelays | IfcPropertySingleValue | IfcCountMeasure | 
 Indicates number of relays used for preventing over current.  | 
|
| NumberOfAffectedPoles | IfcPropertySingleValue | IfcCountMeasure | 
 Number of poles that the equipment affects.  | 
|
| NominalCurrent | IfcPropertySingleValue | IfcElectricCurrentMeasure | 
 The nominal current that is designed to be measured.  | 
|
| RatedFrequency | IfcPropertySingleValue | IfcFrequencyMeasure | 
 Frequency of the AC electric power supply when the device or system reaches its optimum operating condition.  | 
|
| RatedVoltage | IfcPropertyBoundedValue | IfcElectricVoltageMeasure | 
 The range of allowed voltage that a device is certified to handle. The upper bound of this value is the maximum.  | 
|
| TransformationRatio | IfcPropertySingleValue | IfcPositiveRatioMeasure | 
 The ratio of the actual primary current or voltage to the actual secondary current or voltage.  |