Double-speed KB0D:
KB0 is used as a main switch and composed of appropriate contactors and electrical
interlocker to be formed as KB0D double-speed controller, intended for control
and protection of double-speed motors
The controller can be arranged into following three types:
1) Higher speed for fire protection (protection against over load and over
current, only for alarm, and not for tripping); lower speed for basic type
2) Higher and lower speed all for basic types
3) Higher and lower speed all for fire protections (protection against over
load and over current, only for alarm, and not for tripping). The data of
its main circuit and auxiliary modules are as same as those of basic type
KB0
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