Tough magnetic switches are IP67 sealed for dirty environments

C&K’s MPSR series of magnetic sensors are designed for non-contact position and proximity detection in tough dirty environments.

The 61mm long housing is aluminium with a stainless steel cable, and operating life is 4 million actuations in spite of dirt, dust, oil, grease and water, according to the company.

The switches are electro-mechanical, with Form C (change-over) switching providing two outputs that can be toggled to offer additional feedback. Inside, the sensor is a nitrogen-filled reed switch with rhodium coated contacts.

“Ideal for Zone 2 applications, the MPSR Series sensor utilises hermetically sealed contacts that insulate electrical switch contacts from the outside environment, eliminating the risk of sparks,” said C&K. “Magnetic proximity sensors offer non-contact object detection beyond the normal limits of products such as inductive sensors.”

The normally open contacts on the MPSR Series sensor are open when the accompanying magnet is removed from proximity to the sensor, and they are held closed when the magnet is within actuation range.

Conversely, the normally closed contacts are closed when the magnet is removed from proximity to the sensor, while they are open when the magnet is within actuation range.

30V 3W rating means that the sensor can be used for either signal level or load switching as required by the application.

Operating range is -40 to 80°C) and the sensor is UL61058 approved.

the cable is 2m long with 22AWG copper or aluminium conductors and rated UL 1061 UL1007 UL2468.

The MPSR series product page is here