Page 20
GENERAL DESCRIPTION
b .
Handle Interlock
Two mechanical interlocks are provided to
prevent
operating
the
s w i t c h
handle
improperly.
The first interlock prevents moving the handle
from OFF to ON unless the compartment door
is closed (Fig. 22).
The second interlock prevents the switch
handle from being moved in either direction
unless the contacts of the vacuum contactor
o n t h e w i t h d r a w a b l e c a r r i a g e a r e o p e n
(Fig. 23).
C.
Vacuum Contactor Interlock
T h e v a c u u m c o n t a c t o r i s m e c h a n i c a l l y
interlocked to prevent it from closing unless
the switch handle is in the fully ON or fully
OFF position.
The interlock shown in Fig. 23
provides
this
function.
If the switch handle is in the intermediate
position, and a closing signal is given to the
contactor, it is mechanically prevented from
operating.
Fig.
Handle Interlock to Door
Fig. 23 Handle Interlock to Vacuum Contactor
Phone: 800.894.0412 - Fax: 888.723.4773 - Web: www.clrwtr.com - Email: [email protected]