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Automatic activated Start-Delta-Starter
Automatic activation with KLIBO-Timer
Special features:
- Operator independent start
- Adjustable startup time
- Start with reduced load on mains line and drive
- Reduces startup current requirements by 1/3 over direct startup current
- Operator panel may be placed outside
Capacity:
- 4.0 - 22.0 kW
Versions:
- Top-hat rail mounting, K4000
- Custom housing as e.g.:
KB44218, Dimensions: 240 x 190 x 160 mm (LxWxD)
KB44209, Dimensions: 300 x 220 x 120 mm (LxWxD)
KB44219, Dimensions: 300 x 220 x 180 mm (LxWxD)
KB44210, Dimensions: 380 x 300 x 120 mm (LxWxD)
KB44220, Dimensions: 380 x 300 x 180 mm (LxWxD) - Other versions on request
Functional description:
Star-delta-starters are employed with asynchronous motors of 4 kW and larger to prevent excessive startup currents. Unlike hand-operated star-delta-starters these starters either have their own logic controller or can be operated manually, so that the starting time can be optimized for every application.
Starting is implemented by means of a contactor controller, a special time relay (KLIBO-Star-Delta-Brake-Timer), and an integrated overload relay. High operational reliability is achieved by observing important switching sequences and locking the controls.
The switching time should be set in such a way that 80% of nominal speed are achieved when the switch-over from star to delta takes place. A motor suited for star-delta must have a voltage rating of 380 V /660 V or delta 380 V. Six external winding terminals are necessary to connect such motors.
Star-delta-starters are used in machine tools, wood processing machines, compressors etc. These starters may be equipped with our new brake controls (see Option “electronic brakes”).
Examples for automatic activated star-delta-starters:
K4000 with mains lead, undervoltage trigger, overload protection, adjustable startup time, main switch, external start-stop, motor connection lead
K4000 with external power supply, undervoltage trigger, overload protection, adjustable startup time, electronic brake, emergency-stop-button, external main switch, motor connection lead, limit switch cable
KB44218 with undervoltage trigger, overload protection, adjustable startup time, main switch, hours-run meter, socket-outlet, motor connection lead, mains lead, control lead
KB44218 with mains lead and 32 A-plug, undervoltage trigger, overload protection, adjustable startup time, main switch, motor connection lead
Star-delta-starter on top-hat rail with overload protection, adjustable startup time, control fuse, connection terminals
Star-delta-starter on top-hat rail with overload protection, electronic brake, adjustable startup time, control fuse, connecting terminals