General
Type of electric connection	Screw connection
Nominal current	6
Rated control supply voltage Us at DC	24
Voltage type for actuating	DC
Drive, polarization	Polarized
Drive, switching attitude	Mono stable
Number of contacts as normally closed contact	0
Number of contacts as normally open contact	0
Number of contacts as change-over contact	1
Type of switch contact	Simple contact
Degree of protection (IP)	IP20
Width	6
Height	67.5
Depth	70
Material of contact surface	Other
Voltage type (operating voltage)	AC/DC
With detachable clamps
With forced-guided contacts
Complete with socket
With LED indication

Programmable logic controllers (PLCs) play a central role in today's industrial automation systems. They connect measuring instruments and actuators connected via conventional cabling to the process. However, a PLC is not completely decoupled from the industrial environment, so overvoltage peaks and transient currents can certainly affect its functionality. In order to adjust the applied voltage and/or current and to provide the PLC with suitable galvanic isolation, the appropriate interface should be installed for each input/output point, which both regulates the voltage and current level and offers isolation protection. The relay and optocoupler series from ABB offer such interfaces. They allow a wide range of adjustment of the voltage (from 5 to 250 V) and current (from 0.01 to 8 A) as well as a high level of isolation between input and output of 2 to 4 kV. Transistor, MOS-FET or triac outputs can be selected for high switching frequencies with low switching loads.