Overview
The Siemens 3RT2046-1XB40-0LA2 is a high-performance SIRIUS power contactor, specifically designed for traction applications. This robust 3-pole contactor is engineered to handle heavy-duty loads with a rated operational current of 95 A for AC-3e/AC-3 applications and is capable of controlling motors up to 45 kW at 400 V. The compact S3 frame size makes it ideal for space-constrained installations.
Its solid-state operating mechanism, powered by 24 V DC, ensures reliable and precise switching. An integrated varistor provides superior surge protection, safeguarding the control circuit from voltage spikes. The contactor also features one normally open (NO) and one normally closed (NC) auxiliary contact, offering flexible integration into control circuits. With its durable screw terminals, installation is secure and straightforward.
Key Benefit
- Exceptional Durability: Built for the demanding conditions of traction applications, ensuring a long operational life.
- Reliable Performance: The solid-state operating mechanism provides fast, accurate, and consistent switching, minimizing wear and tear.
- Enhanced Protection: The integrated varistor effectively suppresses voltage surges, protecting sensitive control components and extending the contactor’s lifespan.
- Flexible Integration: The inclusion of 1 NO + 1 NC auxiliary contacts allows for easy integration into a wide range of control and signaling circuits.
- Space-Efficient Design: The compact S3 frame size is perfect for control cabinets with limited space, without compromising on performance.
- Simple Installation: Secure and reliable screw terminals simplify wiring and maintenance.
Function & Technical Specifications
- Product Type: Traction Contactor / Power Contactor
- Model Number: 3RT2046-1XB40-0LA2
- Rated Operational Current (AC-3e/AC-3): 95 A
- Rated Power (at 400V): 45 kW
- Number of Poles: 3
- Control Supply Voltage: 24 V DC
- Control Voltage Range: 0.7 to 1.25 * Uc (Control Supply Voltage)
- Operating Mechanism: Solid-state with integrated varistor
- Auxiliary Contacts: 1 NO (Normally Open) + 1 NC (Normally Closed)
- Connection Type: Screw Terminal
- Frame Size: S3
- Product Series: SIRIUS
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