You searched for "parallel interface"
EAO
EAO Illuminated Push Button Switch for Use with Series 51 Switches
Part: 51-261.0252
A backlit black push button switch that mounts on control panels and works with EAO Series 51 switch systems for industrial machinery and equipment control.
EAO
EAO Illuminated Push Button Switch for Use with Series 51 Switches
Part: 51-121.0252
A lighted push button switch that mounts on control panels to start or stop machines and equipment, rated for 250V power.
EAO
EAO Illuminated Push Button Switch for Use with Series 51 Switches
Part: 51-131.0252
A lighted push button switch that mounts on control panels and works with EAO Series 51 systems, rated for 250V AC power.
EAO
EAO Illuminated Push Button Switch for Use with Series 84 Switches
Part: 84-2101.0
A lit push button switch that mounts on control panels to operate machinery and equipment, rated for 250V power.