Siemens Industrial Controls 3RH2911-1BA10 Switch
The Siemens 3RH2911-1BA10 is a heavy-duty SIRIUS auxiliary switch block designed for seamless front-mounting on 3RT2 series contactors and 3RH2 contactor relays. Engineered for industrial motor control environments, this single-pole 1NO auxiliary contact provides critical feedback signaling and interlocking capabilities across frame sizes S00 through S3. Featuring high-conductivity copper alloy screw terminals, it ensures a gas-tight, vibration-resistant connection required in high-ambient HVACR applications. This SIRIUS 3RH29 component is rated for an operational current of up to 10A at AC-12 and 6A at AC-15 (230V), providing the switching reliability needed for PLC status monitoring and self-holding circuit logic. Its front-mounted, snap-on design allows for rapid field installation without specialized tooling, maintaining a standard IP20 protection rating. With a mechanical endurance of 10 million cycles and an insulation voltage of 690V, this contactor auxiliary switch is the veteran technician's choice for expanding control circuit capacity in modular automation systems.
Key Benefits- Broad Compatibility: Snaps directly onto 3RT2 power contactors and 3RH2 control relays from size S00 to S3 without tools.
- Robust Electrical Ratings: Supports signaling up to 600V DC and 690V AC, making it suitable for diverse industrial control voltages.
- Secure Connectivity: Traditional screw terminal design provides maximum contact pressure and accommodates standard ferruled or bare wire leads.
- High Reliability: Optimized for low-level switching with a contact reliability of one incorrect switching operation per 100 million.
- Space-Efficient Design: Front-mounting configuration preserves DIN rail space by expanding contact counts vertically rather than horizontally.
- What is the primary application for the 1NO contact on this block? It is typically used for "seal-in" circuits or providing a digital "RUN" status feedback to a PLC or building automation system.
- Can this be mounted on older 3RT1 series contactors? No, the 3RH2911-1BA10 is specifically designed for the SIRIUS Innovation 3RT2 and 3RH2 generation; 3RT1 contactors require 3RH19 series auxiliaries.
- Is this unit suitable for switching low-level electronic signals? Yes, the unit features high contact reliability (17V, 1mA compatibility), making it effective for electronic-level signaling despite its high voltage rating.
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: $17.29
-65%$17.29
$6.05Product Information
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Description
The Siemens 3RH2911-1BA10 is a heavy-duty SIRIUS auxiliary switch block designed for seamless front-mounting on 3RT2 series contactors and 3RH2 contactor relays. Engineered for industrial motor control environments, this single-pole 1NO auxiliary contact provides critical feedback signaling and interlocking capabilities across frame sizes S00 through S3. Featuring high-conductivity copper alloy screw terminals, it ensures a gas-tight, vibration-resistant connection required in high-ambient HVACR applications. This SIRIUS 3RH29 component is rated for an operational current of up to 10A at AC-12 and 6A at AC-15 (230V), providing the switching reliability needed for PLC status monitoring and self-holding circuit logic. Its front-mounted, snap-on design allows for rapid field installation without specialized tooling, maintaining a standard IP20 protection rating. With a mechanical endurance of 10 million cycles and an insulation voltage of 690V, this contactor auxiliary switch is the veteran technician's choice for expanding control circuit capacity in modular automation systems.
Key Benefits- Broad Compatibility: Snaps directly onto 3RT2 power contactors and 3RH2 control relays from size S00 to S3 without tools.
- Robust Electrical Ratings: Supports signaling up to 600V DC and 690V AC, making it suitable for diverse industrial control voltages.
- Secure Connectivity: Traditional screw terminal design provides maximum contact pressure and accommodates standard ferruled or bare wire leads.
- High Reliability: Optimized for low-level switching with a contact reliability of one incorrect switching operation per 100 million.
- Space-Efficient Design: Front-mounting configuration preserves DIN rail space by expanding contact counts vertically rather than horizontally.
- What is the primary application for the 1NO contact on this block? It is typically used for "seal-in" circuits or providing a digital "RUN" status feedback to a PLC or building automation system.
- Can this be mounted on older 3RT1 series contactors? No, the 3RH2911-1BA10 is specifically designed for the SIRIUS Innovation 3RT2 and 3RH2 generation; 3RT1 contactors require 3RH19 series auxiliaries.
- Is this unit suitable for switching low-level electronic signals? Yes, the unit features high contact reliability (17V, 1mA compatibility), making it effective for electronic-level signaling despite its high voltage rating.
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.
