3RH2911-1LA11
The Siemens SIRIUS 3RH2911-1LA11 is a front-mounted auxiliary switch with 1 normally open and 1 normally closed (1 NO + 1 NC) contacts and terminals marked 73/74 and 81/82. It has top-entry wiring and screw terminal connections, and is suitable for front mounting of 3RT2 contactors and 3RH2 contact relays.
Product Positioning
The 3RH2911-1LA11 is a SIRIUS 3RH29 double-pole pre-amplified auxiliary switch. The wires are introduced from the top and can be used with a panel configuration where the wire trough is located above the contactor to shorten the wiring distance. It is suitable for use in status feedback and self-holding circuits.
Core Product Advantages and Features
Top cable entry design
The terminals are wired from the top, which, in accordance with the direction of the wiring channels inside the panel, results in shorter and neater wiring.
1 normally open, 1 normally closed
One set of normally open and one set of normally closed contacts can be used simultaneously for self-holding and status feedback.
Front-mounted snap-fit installation
It snaps directly onto the front of the 3RT2 contactor or 3RH2 contact relay for quick installation.
Screw terminal secure
The screw terminals can be connected to 0.5 to 2.5 mm² wires, which is suitable for general control panel wiring habits.