B-Line E50 Heavy Duty Plug-In Limit Switch

Yes. The E50AS2 carries NEMA 1, 3, 3S, 4, 4X, 6, 6P, 13 and IP67 ratings, so it handles washdown, hosedown, dust, and temporary submersion. The 4X rating and die cast zinc enclosure also cover corrosive areas like food processing and wastewater. Working range is 14 to 201 degrees F (-10 to 94 degrees C), so unheated outdoor installs in hard winter climates need a check against your site's low temperature.

The E50AS2 contacts are rated 10A at 240Vac and 1A at 250Vdc, which covers most starter and contactor coil loads at 240V. On DC circuits the 1A ceiling is the limit to watch, so a DC solenoid or brake coil drawing more than that needs an interposing relay.

It does. The contact block is 1NO-1NC, so you can run a stop signal off the NC side and a position confirmation or indicator light off the NO side from the same switch. Field wiring lands on screw terminals.

The E50AS2 is an adjustable side pushbutton type. The operating head is actuated straight in from the side by a cam, dog, or the machine member itself rather than by a lever arm, and the plunger position is adjustable to set the trip point. Use it where the moving part travels in line with the switch face; where the target passes across the switch instead, a roller lever head is the right style.

Repeat accuracy is within 0.003 inch, which is tight enough for positioning and end-of-travel stops on indexing and conveyor equipment, not just crude presence detection.

On a plug-in design like the E50, the switch body separates from the wired receptacle base, so a failed unit is swapped without disturbing field wiring. That matters on an MRO stock program: the screw-terminal connections stay made up in the base, and downtime is a change-out rather than a rewire.

Order model E50AS2. That is the single configuration of this heavy duty plug-in switch, built as an adjustable side pushbutton with a 1NO-1NC contact block, so there is no separate head or contact option to specify on the order.