Siemens Industrial Controls 3RA2934-2B Interlock
The Siemens 3RA2934-2B mechanical interlock is a critical safety component for field-assembled reversing contactor combinations. Designed to integrate seamlessly within the SIRIUS modular system, this side-mount unit provides a physical lockout between two power contactors. It serves as a secondary failsafe, ensuring that both contactors cannot be engaged simultaneously, which prevents catastrophic phase-to-phase short circuits in motor control applications. This passive mechanical locking device is engineered for a lateral mounting position, locking the armatures of adjacent units to secure your high-voltage switching setup.
Built for heavy-duty industrial environments, the 3RA2934-2B interlock is specifically compatible with Siemens 3RT203, 3RT204, and 3RT244 power contactors spanning S2 and S3 frame sizes. By physically blocking the movement of the second contactor when the first is energized, it maintains system integrity in high-demand motor starters. The low-profile design adds only 35mm to the assembly depth, fitting easily into crowded control panels while facilitating the rapid construction of reliable reversing starters without complex external modifications. Field technicians can rely on this robust Siemens SIRIUS accessory to meet rigorous safety requirements in motor control centers.
Key Benefits:- Fail-Safe Protection: Provides a robust mechanical lockout to prevent simultaneous contactor engagement in reversing combinations.
- Size Compatibility: Verified for use with Siemens S2 and S3 frame contactors, including the wider 3RT204 and 3RT244 series.
- Modular Integration: Easily snaps into SIRIUS 3RT2 series devices for streamlined lateral assembly on standard 35mm DIN rails.
- Technical Reliability: Passive mechanical design requires no additional power while ensuring positive locking under continuous industrial operating conditions.
- Can this interlock be used with smaller S0 or S00 contactors? No, this specific part number is engineered strictly for the larger armature throw and spacing of S2 and S3 frame sizes.
- How does this affect the width and depth of the starter assembly? The interlock mounts between contactors, and while it adds to the width between units, it also increases the total depth profile by approximately 35mm.
- Is electrical interlocking still required if this mechanical device is installed? Yes, veteran technicians recommend using both electrical auxiliary interlocks and mechanical interlocks for maximum safety in reversing motor starters.
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 3RA2934-2B Interlock
The Siemens 3RA2934-2B mechanical interlock is a critical safety component for field-assembled reversing contactor combinations. Designed to integrate seamlessly within the SIRIUS modular system, this side-mount unit provides a physical lockout between two power contactors. It serves as a secondary failsafe, ensuring that both contactors cannot be engaged simultaneously, which prevents catastrophic phase-to-phase short circuits in motor control applications. This passive mechanical locking device is engineered for a lateral mounting position, locking the armatures of adjacent units to secure your high-voltage switching setup.
Built for heavy-duty industrial environments, the 3RA2934-2B interlock is specifically compatible with Siemens 3RT203, 3RT204, and 3RT244 power contactors spanning S2 and S3 frame sizes. By physically blocking the movement of the second contactor when the first is energized, it maintains system integrity in high-demand motor starters. The low-profile design adds only 35mm to the assembly depth, fitting easily into crowded control panels while facilitating the rapid construction of reliable reversing starters without complex external modifications. Field technicians can rely on this robust Siemens SIRIUS accessory to meet rigorous safety requirements in motor control centers.
Key Benefits:- Fail-Safe Protection: Provides a robust mechanical lockout to prevent simultaneous contactor engagement in reversing combinations.
- Size Compatibility: Verified for use with Siemens S2 and S3 frame contactors, including the wider 3RT204 and 3RT244 series.
- Modular Integration: Easily snaps into SIRIUS 3RT2 series devices for streamlined lateral assembly on standard 35mm DIN rails.
- Technical Reliability: Passive mechanical design requires no additional power while ensuring positive locking under continuous industrial operating conditions.
- Can this interlock be used with smaller S0 or S00 contactors? No, this specific part number is engineered strictly for the larger armature throw and spacing of S2 and S3 frame sizes.
- How does this affect the width and depth of the starter assembly? The interlock mounts between contactors, and while it adds to the width between units, it also increases the total depth profile by approximately 35mm.
- Is electrical interlocking still required if this mechanical device is installed? Yes, veteran technicians recommend using both electrical auxiliary interlocks and mechanical interlocks for maximum safety in reversing motor starters.
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 3RA2934-2B mechanical interlock is a critical safety component for field-assembled reversing contactor combinations. Designed to integrate seamlessly within the SIRIUS modular system, this side-mount unit provides a physical lockout between two power contactors. It serves as a secondary failsafe, ensuring that both contactors cannot be engaged simultaneously, which prevents catastrophic phase-to-phase short circuits in motor control applications. This passive mechanical locking device is engineered for a lateral mounting position, locking the armatures of adjacent units to secure your high-voltage switching setup.
Built for heavy-duty industrial environments, the 3RA2934-2B interlock is specifically compatible with Siemens 3RT203, 3RT204, and 3RT244 power contactors spanning S2 and S3 frame sizes. By physically blocking the movement of the second contactor when the first is energized, it maintains system integrity in high-demand motor starters. The low-profile design adds only 35mm to the assembly depth, fitting easily into crowded control panels while facilitating the rapid construction of reliable reversing starters without complex external modifications. Field technicians can rely on this robust Siemens SIRIUS accessory to meet rigorous safety requirements in motor control centers.
Key Benefits:- Fail-Safe Protection: Provides a robust mechanical lockout to prevent simultaneous contactor engagement in reversing combinations.
- Size Compatibility: Verified for use with Siemens S2 and S3 frame contactors, including the wider 3RT204 and 3RT244 series.
- Modular Integration: Easily snaps into SIRIUS 3RT2 series devices for streamlined lateral assembly on standard 35mm DIN rails.
- Technical Reliability: Passive mechanical design requires no additional power while ensuring positive locking under continuous industrial operating conditions.
- Can this interlock be used with smaller S0 or S00 contactors? No, this specific part number is engineered strictly for the larger armature throw and spacing of S2 and S3 frame sizes.
- How does this affect the width and depth of the starter assembly? The interlock mounts between contactors, and while it adds to the width between units, it also increases the total depth profile by approximately 35mm.
- Is electrical interlocking still required if this mechanical device is installed? Yes, veteran technicians recommend using both electrical auxiliary interlocks and mechanical interlocks for maximum safety in reversing motor starters.
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.
