Siemens Industrial Controls 3RH2911-1HA22 Contact Block
Upgrade your control panel's logic with the Siemens 3RH2911-1HA22, a high-performance 4-pole auxiliary contact block designed for heavy-duty industrial automation. This front-mount unit features a 2NO + 2NC contact configuration (2 Normally Open and 2 Normally Closed), making it essential for expansion in complex HVACR and motor control circuits. Engineered as part of the SIRIUS modular system, it provides seamless integration with 3RT2 contactors and 3RH2 contactor relays from sizes S00 to S3. The snap-on design allows for tool-free installation, while the centrally positioned release lever ensures rapid disassembly during maintenance cycles. With a mechanical service life of 10 million switching cycles and high contact reliability—tested for 1 faulty operation per 100 million—this switch block maintains circuit integrity even at low voltages. Secure screw terminal connections provide vibration-resistant wiring, compliant with IEC 60947-5-1 standards for global interoperability.
Key Benefits
- Universal Compatibility: Specifically engineered for front mounting on Siemens 3RT2 power contactors and 3RH2 control relays.
- Robust Contact Configuration: Equipped with 2NO 2NC auxiliary contacts to handle auxiliary signaling and interlocking requirements.
- Industrial Durability: Rated for a 690V insulation voltage and a 6kV surge resistance to withstand electrical fluctuations in demanding environments.
- Efficient Mounting: Snap-on mechanism allows for immediate expansion of contactor auxiliary contacts without increasing the footprint of the DIN rail.
- Precision Engineering: Features positively driven contacts (in 3RH2 relays) and mirror contact properties (with 3RT2 contactors) for safety-critical applications.
Common Questions
Which contactors are compatible with the 3RH2911-1HA22?
This block is designed for the Siemens SIRIUS 3RT2 series (S00, S0, S2, S3) and 3RH2 contactor relays. It is not backward compatible with the older 3RT1 series.
Can I use this for low-voltage PLC signals?
Yes, the Siemens 3RH2911-1HA22 provides excellent contact reliability at 17V/1mA, making it suitable for high-density electronic inputs and PLC feedback loops.
Does this auxiliary switch support front or side mounting?
This specific model is a top-mounted auxiliary contact intended for front-face installation on the contactor. Side-mount versions are available under different part numbers.
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.
Siemens Industrial Controls 3RH2911-1HA22 Contact Block
Upgrade your control panel's logic with the Siemens 3RH2911-1HA22, a high-performance 4-pole auxiliary contact block designed for heavy-duty industrial automation. This front-mount unit features a 2NO + 2NC contact configuration (2 Normally Open and 2 Normally Closed), making it essential for expansion in complex HVACR and motor control circuits. Engineered as part of the SIRIUS modular system, it provides seamless integration with 3RT2 contactors and 3RH2 contactor relays from sizes S00 to S3. The snap-on design allows for tool-free installation, while the centrally positioned release lever ensures rapid disassembly during maintenance cycles. With a mechanical service life of 10 million switching cycles and high contact reliability—tested for 1 faulty operation per 100 million—this switch block maintains circuit integrity even at low voltages. Secure screw terminal connections provide vibration-resistant wiring, compliant with IEC 60947-5-1 standards for global interoperability.
Key Benefits
- Universal Compatibility: Specifically engineered for front mounting on Siemens 3RT2 power contactors and 3RH2 control relays.
- Robust Contact Configuration: Equipped with 2NO 2NC auxiliary contacts to handle auxiliary signaling and interlocking requirements.
- Industrial Durability: Rated for a 690V insulation voltage and a 6kV surge resistance to withstand electrical fluctuations in demanding environments.
- Efficient Mounting: Snap-on mechanism allows for immediate expansion of contactor auxiliary contacts without increasing the footprint of the DIN rail.
- Precision Engineering: Features positively driven contacts (in 3RH2 relays) and mirror contact properties (with 3RT2 contactors) for safety-critical applications.
Common Questions
Which contactors are compatible with the 3RH2911-1HA22?
This block is designed for the Siemens SIRIUS 3RT2 series (S00, S0, S2, S3) and 3RH2 contactor relays. It is not backward compatible with the older 3RT1 series.
Can I use this for low-voltage PLC signals?
Yes, the Siemens 3RH2911-1HA22 provides excellent contact reliability at 17V/1mA, making it suitable for high-density electronic inputs and PLC feedback loops.
Does this auxiliary switch support front or side mounting?
This specific model is a top-mounted auxiliary contact intended for front-face installation on the contactor. Side-mount versions are available under different part numbers.
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
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Description
Upgrade your control panel's logic with the Siemens 3RH2911-1HA22, a high-performance 4-pole auxiliary contact block designed for heavy-duty industrial automation. This front-mount unit features a 2NO + 2NC contact configuration (2 Normally Open and 2 Normally Closed), making it essential for expansion in complex HVACR and motor control circuits. Engineered as part of the SIRIUS modular system, it provides seamless integration with 3RT2 contactors and 3RH2 contactor relays from sizes S00 to S3. The snap-on design allows for tool-free installation, while the centrally positioned release lever ensures rapid disassembly during maintenance cycles. With a mechanical service life of 10 million switching cycles and high contact reliability—tested for 1 faulty operation per 100 million—this switch block maintains circuit integrity even at low voltages. Secure screw terminal connections provide vibration-resistant wiring, compliant with IEC 60947-5-1 standards for global interoperability.
Key Benefits
- Universal Compatibility: Specifically engineered for front mounting on Siemens 3RT2 power contactors and 3RH2 control relays.
- Robust Contact Configuration: Equipped with 2NO 2NC auxiliary contacts to handle auxiliary signaling and interlocking requirements.
- Industrial Durability: Rated for a 690V insulation voltage and a 6kV surge resistance to withstand electrical fluctuations in demanding environments.
- Efficient Mounting: Snap-on mechanism allows for immediate expansion of contactor auxiliary contacts without increasing the footprint of the DIN rail.
- Precision Engineering: Features positively driven contacts (in 3RH2 relays) and mirror contact properties (with 3RT2 contactors) for safety-critical applications.
Common Questions
Which contactors are compatible with the 3RH2911-1HA22?
This block is designed for the Siemens SIRIUS 3RT2 series (S00, S0, S2, S3) and 3RH2 contactor relays. It is not backward compatible with the older 3RT1 series.
Can I use this for low-voltage PLC signals?
Yes, the Siemens 3RH2911-1HA22 provides excellent contact reliability at 17V/1mA, making it suitable for high-density electronic inputs and PLC feedback loops.
Does this auxiliary switch support front or side mounting?
This specific model is a top-mounted auxiliary contact intended for front-face installation on the contactor. Side-mount versions are available under different part numbers.
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.
