3RH2911-1DA20
The Siemens SIRIUS 3RH2911-1DA20 is a side-mounted auxiliary switch with 2 normally open (2 NO) contacts and screw terminal connections. It is specifically designed for side mounting of 3RT2.1 (S00) contactors, without occupying the front space of the contactor, and is suitable for control circuits that require the front position to be retained.
Product Positioning
The 3RH2911-1DA20 is a SIRIUS 3RH29 side-mounted auxiliary switch. The module width is only about 10mm. It is installed on the side of the S00 contactor and can be used in conjunction with a front-mounted auxiliary switch. It is suitable for occasions with a large number of contacts or limited panel height.
Core Product Advantages and Features
Side mounting saves space
Installed on the left or right side of the contactor, leaving front space for a pre-amplifier switch or other accessories.
2 normally open contacts
It provides two normally open auxiliary contacts for status feedback, interlocking, or control signals such as indicator lights.
Dedicated S00 contactor
It is compatible with 3RT2.1 (S00) size contactors, with snap-fit fixing for quick and reliable installation.
Screw terminal connection
The screw terminals can connect to 0.5 to 2.5 mm² wires, ensuring a secure connection that conforms to general wiring practices.