Nord launches wear-free soft starter and reversing starter
A wear-free, decentralised motor-mounted starter is available now from Nord Drivesystems.
The SK 135E features an extended performance range for the economic distributed implementation of soft start and reversing functions, for motors from 0.25 to 7.5kW.
It integrates motor overload protection through PTC thermistor monitoring, mains and motor phase failure monitoring, I²t monitoring and magnetising current monitoring.
The electronic, wear-free switching technology replaces motor circuit breakers, reversing contactors, and brake rectifiers, thus rendering entire control cabinets unnecessary in large facilities.
As PTC thermistor connection cables and brake control cables are not required, either, Nord says installation becomes generally more cost effective, space saving, and faster.
When the drives are ordered complete and wired with gearbox, motor and starter, any assembly effort is reduced to simply tightening the screws and establishing the electrical connection, which is optionally with plugs.
The soft start function reduces mechanical stress, preventing shocks during start-up and braking. A voltage boost can be programmed for applications requiring high break-away torques. Various braking modes are available.