This product page details the Siemens power contactor, a robust 3-pole switching device engineered for reliable motor control and power switching in industrial applications. Rated for 15kW at 400V with a 32A current capacity, this contactor features a 230VAC control coil, three main normally open power contacts, and versatile auxiliary contacts (2NO+2NC) with screw terminals for comprehensive control system integration.
Overview of the Power Contactor
The Siemens power contactor serves as a critical component in industrial control systems for medium-power applications. Because it combines high electrical durability with extensive auxiliary contact options, it provides both reliable power switching and comprehensive control circuit functionality in a single, integrated device.
Key Features and Technical Specifications
This industrial contactor is engineered for both performance and flexibility. Therefore, here are its essential characteristics:
- Power Rating: 15kW at 400V for three-phase systems
- Current Capacity: 32A continuous current rating
- Poles: 3-pole configuration for three-phase applications
- Coil Voltage: 230VAC for direct mains control operation
- Main Contacts: 3 normally open (NO) power contacts
- Auxiliary Contacts: 2 NO + 2 NC for comprehensive control circuits
- Terminals: Screw terminals for secure, reliable connections
- Mounting: Standard DIN rail or panel mounting

Typical Applications and Use Cases
The versatile configuration of this power contactor makes it suitable for various industrial applications. For example, it is commonly used for:
- Three-phase motor control (up to 20HP applications)
- Industrial heating system control
- Pump and compressor control systems
- HVAC system power switching
- Manufacturing equipment control
- Process control system power distribution
- Machine tool and automation control
For complete motor control solutions, explore our range of compatible Siemens overload relays and motor protection devices designed to work with these contactors.
Why Choose This Siemens Power Contactor?
Selecting this Siemens power contactor provides significant advantages for industrial control applications. Firstly, the 15kW rating at 400V ensures reliable operation with medium-power three-phase loads commonly found in industrial settings. Secondly, the extensive auxiliary contact configuration (2NO+2NC) offers exceptional flexibility for complex control circuits, including status indication, interlocking, and multiple control signals. Consequently, you achieve robust power control with maximum configuration flexibility for sophisticated industrial automation systems.
Installation and Wiring Guidelines
Proper installation of this power contactor is essential for optimal performance and safety. Mount the contactor securely on a DIN rail or panel, ensuring adequate clearance for ventilation and maintenance. Use appropriate cable sizes for the 32A rating and torque the screw terminals to Siemens’ specifications. Furthermore, the 230VAC coil provides direct connection to standard mains voltage, while the multiple auxiliary contacts allow comprehensive control circuit design for status feedback, interlocking, and multiple indicator circuits.
For detailed technical specifications and application guidelines, consult the comprehensive Siemens industrial automation documentation.
Enhance Your Industrial Control System Today
In summary, this Siemens power contactor with its 15kW rating and extensive auxiliary contact configuration represents a reliable solution for medium-power industrial control applications. Finally, by incorporating this robust contactor into your control systems, you ensure reliable operation, enhanced safety, and long service life for your industrial electrical applications.