3RH2911-1NF11
The Siemens SIRIUS 3RH2911-1NF11 is a pre-positioned auxiliary switch suitable for solid-state compatible electronic circuits. It has one normally open and one normally closed contact, which can reliably switch low voltage and low current signals such as 5V/1mA. It has screw terminal connection and is compatible with 3RT2 contactors and 3RH2 contact relays.
Product Positioning
The 3RH2911-1NF11 is an auxiliary switch for electronic circuits compatible with SIRIUS 3RH29. Its contacts are designed for low-energy signals and are suitable for direct connection to low-voltage circuits such as PLC input points, electronic modules, or safety controllers, improving signal contact reliability.
Core Product Advantages and Features
Applicable electronic circuits
The contacts are designed for low voltage and low current, and can be directly connected to PLC inputs and electronic control modules.
High contact reliability
Official data indicates that under 5V/1mA conditions, the false alarm rate is 1 per 100 million switching cycles.
1 normally open, 1 normally closed
Terminal positions .3/.4 and .1/.2, one normally open and one normally closed, can be used for feedback and interlocking simultaneously.
Front-mounted snap-fit installation
It snaps directly onto the front of the 3RT2 contactor or 3RH2 contact relay, and the screw terminals are securely connected.