Siemens Industrial Controls 3RH2911-1FA22 Aux Switch
The Siemens 3RH2911-1FA22 is a front-mounted auxiliary switch block designed for the Sirius 3RT2 contactor and 3RH2 contactor relay families. Engineered for high-cycle industrial automation, this 4-pole unit provides 2NO (Normally Open) and 2NC (Normally Closed) contacts with instantaneous switching capability. With a rated insulation voltage of 690 V and a surge voltage resistance of 6 kV, it is built to withstand the electrical transients typical in commercial HVACR and motor control panels. The 3RH2911-1FA22 uses reliable screw terminals for secure termination, ensuring long-term contact integrity in high-vibration environments. Since it snaps directly onto the front of 3RT2 contactors (sizes S00 through S3), it allows for rapid field expansion of control circuits without increasing the footprint of the DIN rail assembly. This SIRIUS auxiliary switch is the standard for technicians requiring a mirror contact design for safety-related feedback and auxiliary signaling in complex power circuits.
Key Benefits- Universal Compatibility: Seamlessly snaps onto the front of Siemens 3RT20 power contactors and 3RH2 contactor relays, simplifying installation.
- Industrial Durability: Mechanical service life of up to 10 million operating cycles, providing high reliability for mission-critical applications.
- Flexible Control: Features a 2NO/2NC configuration (2 normally open and 2 normally closed contacts) to handle both status signaling and interlocking.
- Compact Integration: Front-mount design maintains the contactor's width, an essential factor when working inside crowded control cabinets.
- IP20 Protection: Finger-safe screw terminals prevent accidental contact, meeting standard electrical safety protocols for industrial environments.
Which contactors are compatible with the 3RH2911-1FA22?
This block is specifically designed for the Siemens SIRIUS 3RT2 series (Sizes S00, S0, S2, and S3) and 3RH2 relay series. It is not compatible with the older 3RT1 or 3RH1 legacy lines.
Does this switch support mirror contact functionality?
Yes, when used with 3RT2 power contactors, these auxiliary switches function as mirror contacts, ensuring the auxiliary contacts are in a known state relative to the main poles for safety applications.
Are tools required for mounting?
No tools are required for the physical mounting; the unit features a snap-on mechanism with a centrally positioned release lever for easy disassembly. A standard screwdriver is only needed for the screw terminal wiring.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
Original: $37.25
-65%$37.25
$13.04Siemens Industrial Controls 3RH2911-1FA22 Aux Switch
The Siemens 3RH2911-1FA22 is a front-mounted auxiliary switch block designed for the Sirius 3RT2 contactor and 3RH2 contactor relay families. Engineered for high-cycle industrial automation, this 4-pole unit provides 2NO (Normally Open) and 2NC (Normally Closed) contacts with instantaneous switching capability. With a rated insulation voltage of 690 V and a surge voltage resistance of 6 kV, it is built to withstand the electrical transients typical in commercial HVACR and motor control panels. The 3RH2911-1FA22 uses reliable screw terminals for secure termination, ensuring long-term contact integrity in high-vibration environments. Since it snaps directly onto the front of 3RT2 contactors (sizes S00 through S3), it allows for rapid field expansion of control circuits without increasing the footprint of the DIN rail assembly. This SIRIUS auxiliary switch is the standard for technicians requiring a mirror contact design for safety-related feedback and auxiliary signaling in complex power circuits.
Key Benefits- Universal Compatibility: Seamlessly snaps onto the front of Siemens 3RT20 power contactors and 3RH2 contactor relays, simplifying installation.
- Industrial Durability: Mechanical service life of up to 10 million operating cycles, providing high reliability for mission-critical applications.
- Flexible Control: Features a 2NO/2NC configuration (2 normally open and 2 normally closed contacts) to handle both status signaling and interlocking.
- Compact Integration: Front-mount design maintains the contactor's width, an essential factor when working inside crowded control cabinets.
- IP20 Protection: Finger-safe screw terminals prevent accidental contact, meeting standard electrical safety protocols for industrial environments.
Which contactors are compatible with the 3RH2911-1FA22?
This block is specifically designed for the Siemens SIRIUS 3RT2 series (Sizes S00, S0, S2, and S3) and 3RH2 relay series. It is not compatible with the older 3RT1 or 3RH1 legacy lines.
Does this switch support mirror contact functionality?
Yes, when used with 3RT2 power contactors, these auxiliary switches function as mirror contacts, ensuring the auxiliary contacts are in a known state relative to the main poles for safety applications.
Are tools required for mounting?
No tools are required for the physical mounting; the unit features a snap-on mechanism with a centrally positioned release lever for easy disassembly. A standard screwdriver is only needed for the screw terminal wiring.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
The Siemens 3RH2911-1FA22 is a front-mounted auxiliary switch block designed for the Sirius 3RT2 contactor and 3RH2 contactor relay families. Engineered for high-cycle industrial automation, this 4-pole unit provides 2NO (Normally Open) and 2NC (Normally Closed) contacts with instantaneous switching capability. With a rated insulation voltage of 690 V and a surge voltage resistance of 6 kV, it is built to withstand the electrical transients typical in commercial HVACR and motor control panels. The 3RH2911-1FA22 uses reliable screw terminals for secure termination, ensuring long-term contact integrity in high-vibration environments. Since it snaps directly onto the front of 3RT2 contactors (sizes S00 through S3), it allows for rapid field expansion of control circuits without increasing the footprint of the DIN rail assembly. This SIRIUS auxiliary switch is the standard for technicians requiring a mirror contact design for safety-related feedback and auxiliary signaling in complex power circuits.
Key Benefits- Universal Compatibility: Seamlessly snaps onto the front of Siemens 3RT20 power contactors and 3RH2 contactor relays, simplifying installation.
- Industrial Durability: Mechanical service life of up to 10 million operating cycles, providing high reliability for mission-critical applications.
- Flexible Control: Features a 2NO/2NC configuration (2 normally open and 2 normally closed contacts) to handle both status signaling and interlocking.
- Compact Integration: Front-mount design maintains the contactor's width, an essential factor when working inside crowded control cabinets.
- IP20 Protection: Finger-safe screw terminals prevent accidental contact, meeting standard electrical safety protocols for industrial environments.
Which contactors are compatible with the 3RH2911-1FA22?
This block is specifically designed for the Siemens SIRIUS 3RT2 series (Sizes S00, S0, S2, and S3) and 3RH2 relay series. It is not compatible with the older 3RT1 or 3RH1 legacy lines.
Does this switch support mirror contact functionality?
Yes, when used with 3RT2 power contactors, these auxiliary switches function as mirror contacts, ensuring the auxiliary contacts are in a known state relative to the main poles for safety applications.
Are tools required for mounting?
No tools are required for the physical mounting; the unit features a snap-on mechanism with a centrally positioned release lever for easy disassembly. A standard screwdriver is only needed for the screw terminal wiring.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
