Honeywell BA Series Plunger Limit Switch, SPDT, Plastic Housing, 250V ac Max, 20A Max

This snap-action limit switch from Honeywell is used to automate machine operation in response to changes in the position of a moving object. It makes or breaks an electrical connection when an object comes into contact with its plunger actuator. The plunger is made from a polished stainless steel material that's resistant to corrosion for long-lasting performance. The phenolic cover and case are resistant to wear and impact for use in harsh industrial environments. The elongated mounting hole makes the switch simple to install.

• Silver contacts for high levels of conductivity and resistance to corrosion to ensure a reliable connection
• Compact dimensions of 46.73 (length) x 49.3 (width) x 17.3mm (depth) for use in areas where space is limited
• Wide operating temperature range of -55°C to +85°C for use in demanding environments

• Assembly lines
• Packaging warehouses
• Food processing
• Industrial automation

The primary difference is that a limit switch requires physical contact with an object to operate, while a proximity sensor uses electrical signals to eliminate the need for physical contact. Limit switches are best suited for unidirectional position sensing applications.