The isolation and short-circuit protection functions must performed fuse isolator switch, fuse switch circuit-breaker. complete data base coordination tables available the ABB Website.9 2.)
The «ON» «OFF» control and overload protection functions are performed contactor and thermal overload relay combination.
Fuse ratings recommended the coordination tables should used.5 times nominal current.1 times full-speed torque)
and starting current 5.General Inform ation
Direct-On-Line Starting
of Three-Phase Asynchonous Motors
General
A com bination starter performs the following functions:
• circuit isolation and short-circuit protection,
• otor "ON" "OFF" control,
• overload protection.
Full voltage Direct-On-Line starting simple, economic solution characterised high starting torque (1.
ill! I!
1SBC101001C0202
4
