IP20:
Protected against solid foreign bodies having a diameter of 12.5 mm or larger and against finger contact, not protected against water.

IP40:

Protected against solid foreign bodies having a diameter of 1.0 mm or larger, protected against access with a wire, no protection against water.

IP54:

Protection against dust in damaging amounts, complete protection against contact, protection against splashing water in any angle.

IP65:
Dust-tight, full protection against contact, protection against spray water (jet) from any angle.

IP67:

Dust-tight, full protection against contact, protection against temporary immersion.

An externally connected relay (contactor) can be connected via a feedback loop to the Safety Monitor for monitoring purposes.

inputs are supplied by AS-i or by AUX (auxiliary 24 V power). If supplied by AS-i, inputs shall not be connected to earth or to external potential.

Electronic outputs are supplied by AS-i or by AUX (auxiliary 24 V power). If supplied by AS-i, outputs shall not be connected to earth or to external potential.

For relay outputs the relay contacts are initiated from AS-i. The load circuit is powered externally as specified in the data sheet.

further connection options are available on request.

screw terminals	wiring pins, angled (pins 180° to PCB)	wiring pins, straight (pins 90° to PCB)	solder lugs	sockets	plug-in spring-type / screw terminals	connecting wires