Siemens Industrial Controls 3RA1954-2A Mechanical Interlock
The Siemens 3RA1954-2A Mechanical Interlock is a rugged, laterally mounted interlock specifically engineered for high-capacity SIRIUS 3RT motor contactors within sizes S6, S10, and S12. Designed to ensure fail-safe operation in reversing or changeover configurations, this contactor accessory prevents the simultaneous engagement of two power contactors, effectively protecting your motor winding and electrical distribution system from dead shorts. This industrial-grade component is fully compatible with SIRIUS 3RT10, 3RT12, and 3RT14 series devices, maintaining a compact 10 mm clearance between units to optimize panel space. Precision-molded to meet SIRIUS system modularity standards, it provides a positive mechanical lockout that veteran technicians rely on for mission-critical HVACR and industrial motor control panels. By utilizing this mechanical interlocking module, contractors can meet strict safety requirements for 3RA13 reversing contactor assemblies and 3RA14 star-delta starters while ensuring seamless DIN rail or plate mounting integration.
Key Benefits for Technicians:- Broad Compatibility: Seamlessly integrates with Siemens S6, S10, and S12 frame sizes, supporting large-scale power contactors for 3RT10, 3RT12, and 3RT14 series.
- Space-Efficient Design: Maintains a precise 10 mm contactor clearance, allowing for dense panel layouts without sacrificing mechanical reliability.
- Mechanical Lockout: Provides a hardware-level safety barrier that physically prevents hazardous cross-phasing in reversing contactor or auto-transfer applications.
- Standardized Fitment: Part of the SIRIUS modular system, ensuring rapid snap-on installation and alignment with existing control gear.
- Can the 3RA1954-2A be used with smaller S0 or S2 contactors? No, this specific interlock is sized exclusively for the larger S6, S10, and S12 frames. Smaller frames require the 3RA29 or 3RA19 series accessories relative to their specific frame size.
- Does this interlock require electrical wiring? This is a purely mechanical interlock. For complete safety, technicians should also implement electrical cross-interlocking through the contactors' auxiliary contacts.
- Is this compatible with the 3RT20 series? This model is designed for the 3RT10/12/14 series. Always verify the frame generation (3RT1 vs 3RT2) before installation to ensure the mechanical mounting points align.
This item is not eligible for free shipping.
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: $57.82
-65%$57.82
$20.24Siemens Industrial Controls 3RA1954-2A Mechanical Interlock
The Siemens 3RA1954-2A Mechanical Interlock is a rugged, laterally mounted interlock specifically engineered for high-capacity SIRIUS 3RT motor contactors within sizes S6, S10, and S12. Designed to ensure fail-safe operation in reversing or changeover configurations, this contactor accessory prevents the simultaneous engagement of two power contactors, effectively protecting your motor winding and electrical distribution system from dead shorts. This industrial-grade component is fully compatible with SIRIUS 3RT10, 3RT12, and 3RT14 series devices, maintaining a compact 10 mm clearance between units to optimize panel space. Precision-molded to meet SIRIUS system modularity standards, it provides a positive mechanical lockout that veteran technicians rely on for mission-critical HVACR and industrial motor control panels. By utilizing this mechanical interlocking module, contractors can meet strict safety requirements for 3RA13 reversing contactor assemblies and 3RA14 star-delta starters while ensuring seamless DIN rail or plate mounting integration.
Key Benefits for Technicians:- Broad Compatibility: Seamlessly integrates with Siemens S6, S10, and S12 frame sizes, supporting large-scale power contactors for 3RT10, 3RT12, and 3RT14 series.
- Space-Efficient Design: Maintains a precise 10 mm contactor clearance, allowing for dense panel layouts without sacrificing mechanical reliability.
- Mechanical Lockout: Provides a hardware-level safety barrier that physically prevents hazardous cross-phasing in reversing contactor or auto-transfer applications.
- Standardized Fitment: Part of the SIRIUS modular system, ensuring rapid snap-on installation and alignment with existing control gear.
- Can the 3RA1954-2A be used with smaller S0 or S2 contactors? No, this specific interlock is sized exclusively for the larger S6, S10, and S12 frames. Smaller frames require the 3RA29 or 3RA19 series accessories relative to their specific frame size.
- Does this interlock require electrical wiring? This is a purely mechanical interlock. For complete safety, technicians should also implement electrical cross-interlocking through the contactors' auxiliary contacts.
- Is this compatible with the 3RT20 series? This model is designed for the 3RT10/12/14 series. Always verify the frame generation (3RT1 vs 3RT2) before installation to ensure the mechanical mounting points align.
This item is not eligible for free shipping.
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.
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Description
The Siemens 3RA1954-2A Mechanical Interlock is a rugged, laterally mounted interlock specifically engineered for high-capacity SIRIUS 3RT motor contactors within sizes S6, S10, and S12. Designed to ensure fail-safe operation in reversing or changeover configurations, this contactor accessory prevents the simultaneous engagement of two power contactors, effectively protecting your motor winding and electrical distribution system from dead shorts. This industrial-grade component is fully compatible with SIRIUS 3RT10, 3RT12, and 3RT14 series devices, maintaining a compact 10 mm clearance between units to optimize panel space. Precision-molded to meet SIRIUS system modularity standards, it provides a positive mechanical lockout that veteran technicians rely on for mission-critical HVACR and industrial motor control panels. By utilizing this mechanical interlocking module, contractors can meet strict safety requirements for 3RA13 reversing contactor assemblies and 3RA14 star-delta starters while ensuring seamless DIN rail or plate mounting integration.
Key Benefits for Technicians:- Broad Compatibility: Seamlessly integrates with Siemens S6, S10, and S12 frame sizes, supporting large-scale power contactors for 3RT10, 3RT12, and 3RT14 series.
- Space-Efficient Design: Maintains a precise 10 mm contactor clearance, allowing for dense panel layouts without sacrificing mechanical reliability.
- Mechanical Lockout: Provides a hardware-level safety barrier that physically prevents hazardous cross-phasing in reversing contactor or auto-transfer applications.
- Standardized Fitment: Part of the SIRIUS modular system, ensuring rapid snap-on installation and alignment with existing control gear.
- Can the 3RA1954-2A be used with smaller S0 or S2 contactors? No, this specific interlock is sized exclusively for the larger S6, S10, and S12 frames. Smaller frames require the 3RA29 or 3RA19 series accessories relative to their specific frame size.
- Does this interlock require electrical wiring? This is a purely mechanical interlock. For complete safety, technicians should also implement electrical cross-interlocking through the contactors' auxiliary contacts.
- Is this compatible with the 3RT20 series? This model is designed for the 3RT10/12/14 series. Always verify the frame generation (3RT1 vs 3RT2) before installation to ensure the mechanical mounting points align.
This item is not eligible for free shipping.
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.
