803-EF2

The Allen-Bradley 803-EF2 is a Style EF rotating cam limit switch that has a Type 13 enclosure and 2 circuits present. It features an internal dwell adjustment which can only be set or reset when the cam switch is not in motion and an external time adjustment that can be configured by using a screwdriver when the cam switch is moving. The 803-EF2 switch, like all Style EF switches, is equipped with a maximum shaft speed of 150 RPM, a standard left-hand shaft extension, a cam duration that ranges from a minimum of 15 degrees to a maximum of 360 degrees, and 25 Amp-rated N. C. or normally closed double break contacts. A spring-loaded cam-roller assembly mounted to the contact base can also be found on this rotating cam limit switch.

The approximate weight of the 803-EF2 switch is 11.3 kilograms or 25 pounds and it is mountable on any plane, and it has the capacity to rotate well in either a clockwise or a counterclockwise direction. This switch is suitable for long-term and heavy-duty use and it is suitable for machines that have operation cycles that are repetitive and whose shaft rotation is correlated with the mechanical motion. The typical shaft torque ratings of this switch are 0.5 pounds on inch with the cam roller in the valley, 3 pounds on inch when the cam roller rides on the lobe, and 7 pounds on inch when the cam roller rides up the switch’s cam ramp. The 803-EF2 switch has an operating temperature range of -30 to 66 degrees Celsius and a storage temperature range of -30 to 93 degrees Celsius.