PITestop
Operating Manual PITestop
21136-EN-11
11
Preparing for operation
NOTICE
Check the function of the pushbutton before commissioning for the first time
and then at regular intervals (at least annually).
}
The wiring is connected to the contact block via fixed terminals with a screw connection
Version with surface mount housing
}
only with illuminated actuators: Break out one of the openings indicated on the upper
part of the surface mount housing
}
To route the cable, break out one of the pre-prepared openings on the lower part of the
surface mount housing
}
Use a plastic M20 stuffing box connection for sealing and strain relief
}
Make sure that the contact blocks which are installed in the enclosure are properly con-
nected, so that - when the unit is used correctly - the requirements with regard to airgap
creepage are satisfied for an enclosure with protective insulation.
Contact blocks
The contact blocks are supplied pre-assembled in a bracket.
With the illuminated actuators the illuminating contact block must also be attached to the
bracket.
NOTICE
Please note the following when dismantling and reconnecting the individual
contact blocks: The slides of the outer contact blocks must be pointing in-
wards, so that all of the slides are within the ring when the bracket is at-
tached (see drawing below).
Fig.: Attachment of the enclosure
