3RH2911-2FA40
The Siemens SIRIUS 3RH2911-2FA40 is a 4-pole front-mounted auxiliary switch with 4 normally open (4 NO) contacts. The current path is NO, NO, NO, NO in sequence. It is connected with spring terminals and is suitable for front mounting of 3RT2 contactors and 3RH2 contact relays.
Product Positioning
The 3RH2911-2FA40 is a SIRIUS 3RH29 front-mounted 4-pole auxiliary switch, which can supplement 4 sets of 4 normally open contacts at once. It is suitable for motor control and automation equipment control panels that require a lot of interlocking and feedback signals.
Core Product Advantages and Features
4-pole contact primary expansion
A single module provides 4 normally open contacts, reducing the number of parts and installation time.
Front-mounted snap-on installation
It snaps directly onto the front of the contactor, requiring no additional fasteners, making maintenance and replacement convenient.
Applicable to 3RT2 and 3RH2
It can be used with SIRIUS 3RT2 contactors and 3RH2 contact relays, and has high spare parts versatility.
Spring terminal connection
Spring terminals require no screws, are vibration resistant, and are suitable for heavy wiring and vibrating environments.