The Omron D40R-SPB-21-M12 Safety Door Switch is a safety interlock device used to monitor an access door on industrial equipment and ensure the machine stops when the door is opened. Rated for 24VDC at 200mA, it features a 3PST-2NC 1NO contact configuration and comes in the M12 variant for its electrical connection. This 3-pole, multi-contact arrangement supports multiple safety circuits within a single switch, which is useful in machine guarding setups that require several feedback contacts.
