Page 184 - Motor protection and control Manual motor starters, contactors and overload relays

3/110 ABB MOTOR PROTECTION AND CONTROL

—

AFS 3-pole contactors

Dedicated for safety applications

03

Guaranteed contactor status Fast response for increased safety
ABB’s permanently fixed auxiliary contact blocks guarantee In safety applications speed is essential to protect
the correct contactor status at all times. Mechanically linked operators. AFS contactors feature fast opening times, down
and mirror contacts provide the performance required in to 20 ms for certain PLC controlled contactors, ensuring that
feedback circuits. This prevents any unexpected state when a dangerous failure is detected the operator is kept
changes of auxiliary contact if main contacts become out of harms way.
welded or stuck and ensures an accurate depiction of the
safety system status displayed at all times. Mechanically
linked and mirror contact symbols are marked on the yellow
auxiliary block.

Prevent unexpected operations Simplify calculation of your installation safety level
Factory fitted auxiliary contact blocks that are permanently AFS contactor safety data is available in safety design tools
fixed protects devices against accidental operation and Sistema and FSDT, dedicated software for determining the
misuse. A factory-fitted transparent cover on contactors Performance Level (PL) and Safety Integrity Level (SIL) of
up to 96 A shields the contactor status indicator, providing safety functions and generating technical documentations.
additional protection from misuse.