Mechanical Interlocks
Class 9999 / Refer to Catalog 9999CT9701
Mechanical Interlock
General: Type S contactors or starters can be mechanically
interlocked so that only one device is energized at a time. The mechanical
interlock is an interference (non-jamming) type, locking at the beginning
of the stroke of any starter or contactor.
Type S Sizes 00, 0, 1, and 2—The mechanical interlock
is mounted on the underside of the reversing baseplate. Two pins extend
from the mechanical interlock through openings in the baseplate and
engage the contact carrier of each contactor. Two styles of mechanical
interlocks are used: one version for three pole contactors, a different
version for four or five pole contactors. When adding a power pole
to the left side of an existing Size 0, 1, or 2 three-pole reversing
contactor, a new mechanical interlock must also be installed. When
added to the right side only, the power pole is not mechanically interlocked
with the left-hand contactor.
Type S Sizes 3 and 4—The mechanical interlock is separate
from the mounting pan on Sizes 3 and 4. Cams on the mechanical interlocks
are operated by the contact carrier of each contactor. The mechanical
interlock is attached to the underside of the two contactor baseplates
on Sizes 3 and 4.
note
Mechanical interlock Types SM1 through SM10 for Sizes 00-2 devices use overload relay mounting brackets to support the overload relay portion of the starter. See Overload Relay Mounting Bracket.
Mechanical Interlock for Two Contactors
Overload Relay Mounting Bracket
Kit Description |
Class 9999 |
---|---|
Bracket for one overload relay used with horizontal mechanical |
— |
Bracket for two overload relays
used with vertical mechanical interlocks, |
How to Order
To Order Specify: |
Catalog Number |
|
---|---|---|
|
Class |
Type |
9999 |
SM1 |