Product Overview:
The SIEMENS 3TF4511-0A Contactor is a robust and highly reliable industrial control device engineered for the efficient and safe switching of three-phase AC motors and other resistive loads. As a key component within the esteemed Siemens 3TF series, this contactor is designed for superior performance in demanding industrial environments, offering exceptional durability and operational stability. With a rated operational current of 45 Amperes (AC-3) and capable of controlling motors up to 22 kW at 400V, the 3TF4511-0A is an indispensable part of modern motor control centers, advanced automation systems, and comprehensive power distribution panels. Its integrated 1 Normally Open (NO) auxiliary contact provides crucial flexibility for intricate control circuits, interlocking mechanisms, and status indication. This contactor ensures precise, long-lasting, and secure operation, making it a premier choice for electrical engineers, system integrators, and maintenance professionals seeking dependable electrical switchgear solutions for critical applications.

 
Technical Specifications:

 Part Number: 3TF4511-0A
 Alternative Part Number: 3TF45110A
 Product Type: Contactor
 Series: Siemens 3TF (Industrial Contactor)
 Rated Operational Current (AC-3): 45 A (at <= 400 V)
 Rated Operational Power (AC-3): 22 kW (at 400 V)
 Auxiliary Contacts: 1 NO (Normally Open)
 Coil Voltage: Varies by specific model variant (e.g., 24V AC, 110V AC, 230V AC, 400V AC)
 Rated Insulation Voltage (Ui): 690 V
 Rated Impulse Withstand Voltage (Uimp): 6 kV
 Operating Frequency: 50/60 Hz
 Mounting Type: DIN Rail / Screw Mounting
 Operating Temperature Range: -25 °C to +60 °C
 Electrical Endurance (AC-3): Approximately 1.5 million operating cycles
 Mechanical Endurance: Approximately 10 million operating cycles
 Terminal Type: Screw Terminals
 Protection Degree: IP20 (Terminals)
 Standards Compliance: IEC 60947, EN 60947, VDE 0660, UL, CSA
 Weight: 1.0 kg