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Line MonitoringThe relays are used above all for mobile equipment, e.g. air conditioning compressors, refrigerating containers, building site compressors and cranes. Function | Application |
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Phase sequence | - Direction of rotation of the drive
| Phase failure | - A fuse has tripped
- Failure of the control supply voltage
- Broken cable
| Phase unbalance | - Overheating of the motor due to asymmetrical voltage
- Detection of asymmetrically loaded networks
| Undervoltage | - Increased current on a motor with corresponding overheating
- Unintentional resetting of a device
- Network collapse, particularly with battery power
| Overvoltage | - Protection of a plant against destruction due to overvoltage
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