Siemens 3RH2122-2BB40 is a four-pole SIRIUS contactor relay with two normally open and two normally closed contacts, driven by a 24 V DC control coil and featuring spring-loaded terminals in the compact S00 frame. The device provides 2 NO + 2 NC contacts with a 10 A load rating and is offered in multi-unit packaging of 60 pieces per pack (3RH2122-2BB40-ZW96).
