70 610034 NOLTA star-delta 15kW 20-25Am

NOLTA Automatic star-delta starter

The automatic star-delta starter has been specially designed for use in conjunction with pumps. It can be used to start motors up to max. 15 kW where direct starting is not permitted. In automatic mode, the device can be controlled either via level controllers, level electrodes or a float switch. An integrated motor protection switch and the option of connecting a thermal monitor protect the system against faults. The integrated supply voltage monitor signals phase faults and phase sequence faults and switches off the connected load in the event of a fault or prevents the load from starting with a left-hand rotating field.

• Automatic switchover from star to delta after an adjustable time
• Integrated thermal-magnetic motor protection
• Thermal contact connection (bi-metal)
• Manual/automatic operation easily switchable via selector switch
• Connection option for 2 (3) level probes, 2 level controllers or a float switch
• Operating display and rotating field control
• Switching off the consumer in the event of a phase error
• It is not possible to start the appliance with a left-hand rotating field
• Mobile and easy to transport
• Good visibility due to signal housing