Siemens 3RH1262-2BB40 Contactor

Siemens 3RH1262-2BB40 Contactor is a Sirius control relay with an attachable auxiliary block designed for compact S00-frame installations that require a bulk of auxiliary signaling in a single device. It provides six normally open (NO) and two normally closed (NC) auxiliary contacts, enabling multiple status and interlock signals alongside the main switching function. The unit uses spring-type terminals, carries a front IP20 protection rating, and supports an insulation voltage up to 690 V with surge resistance rated at 6 kV, designed for high-cycle operation (about 10,000,000 mechanical switching cycles). The captive auxiliary block is specified as 24 V DC, making it suitable for integration into low-voltage control circuits in industrial machinery and automation applications. Typical use cases include motor control and other machine-automation interventions where expanded auxiliary contact capability and compact footprint are advantageous.