3RH2911-1MA11
The Siemens SIRIUS 3RH2911-1MA11 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 bottom entry and screw terminal connection, and is suitable for front mounting of 3RT2 contactors and 3RH2 contact relays.
Product Positioning
The 3RH2911-1MA11 is a SIRIUS 3RH29 double-pole pre-amplified auxiliary switch. The wires are introduced from below, which can be used with the panel configuration where the wire trough is located below the contactor to shorten the wiring distance. It is suitable for use in status feedback and self-holding circuits.
Core Product Advantages and Features
Bottom cable entry design
The terminals are wired from below, 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-on 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.