The Banner SI-MAG Non-Contact Magnetic Safety Interlock Switch for interlocking and position monitoring. It is a two-piece coded magnetic field safeguarding device and it is used for safety or non-safety interlocking and position monitoring. SI-MAGB2MM have coded magnets which minimize the risk of intentional defeat and sealed components resist water and dirt. There are three housing styles available for flat or 30 mm barrel mounting.

Maximum switching voltage are 170 V DC and 120 V AC
Maximum switching current is 400 mA DC and 280 mA AC
Repeat switching accuracy is +/- 0.1 mm
Switching capacity is 0.25 VA
Operating frequency is 1 Hz
Operating temperature are –25 °C to +70 °C