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Contactors with mechanical latching ..AME type
Tripping electro-magnet For R500 ... R5100 contactors
Mechanical latch
Description 2
Closing electro-magnet Contactors with mechanical latching differ from standard con-
tactor by a double electro-magnet (with closing and tripping
electro-magnet, electrically separated).
A mechanical latch is mounted above the closing electro-mag-
net. The tripping electro-magnet releases the mechanical latch.
No auxiliary contact are fitted as standard for ..AME types.
For additional auxiliary contacts, refer to "Auxiliary contact
fitting details".
AC operated: ..RR..AME
DC operated: ..RE..AME
Applications
–– Contactors which remain permanently closed, that allows
energy saving
–– Installations where the control circuits are fed from batteries
and where it's needed to reduce the power consumption
–– In case of accidental supply failure, the user knows the state
(ON or OFF) of the contactor when the failure occurred
–– Contactors which must remain closed for safety reasons,
even if the control circuit current decreases
–– Contactors in distribution circuits. The contactor is used as
an isolating switch
–– Protection against accidental failure of the main supply.
Operation
Contactor closing (latching)
Once the closing coil is energized, the contactor closes. It
remains in this position by the mechanical latch action.
The closing coil is de-energized by an electrical interlocking
contact.
Contactor opening (de-latching)
Once the tripping coil is energized, the mechanical latch is
released and the contactor opens.
The tripping coil is de-energized by an electrical interlocking
contact.
Mechanical durability
0.2 millions of operating cycles.
Variant
AMF types with 2 tripping coils are available on request.
1SBC104089S0201
ABB R contactors | 2/5
