Overview
The Siemens 3RT1054-6NP36 Power Contactor from the SIRIUS series is a high-performance 3-pole contactor designed for switching motors in industrial applications. This robust Size S6 contactor is rated for 115A (AC-3e/AC-3) and supports motor power up to 55 kW at 400 V. A key feature is the wide-range UC (AC/DC) electronic drive with a voltage of 200-277 V and an integrated 24V DC PLC input, ensuring high control flexibility and compatibility with modern control systems. The main circuit uses reliable busbar connections, while the control and auxiliary circuits utilize secure screw terminals. It includes a built-in auxiliary contact configuration of 2 NO + 2 NC.
Benefit
- High Flexibility: Wide-range 200-277V UC (AC/DC) electronic coil allows operation on both AC and DC control voltages, simplifying inventory and application across different systems.
- PLC Integration: Direct 24V DC PLC input streamlines connection to modern programmable logic controllers, reducing wiring complexity and improving signal reliability.
- Robust Performance: 115 A rated current and 55 kW switching capacity (at 400 V) in the compact Size S6 frame, making it ideal for high-power motor applications.
- Reliable Connections: Busbar main circuit terminals provide a secure, high-current connection, while screw terminals on the control and auxiliary circuits ensure easy and dependable wiring.
- Comprehensive Monitoring: Pre-installed 2 NO + 2 NC auxiliary contacts offer versatile signalling and interlock options for complex control circuits.
Function/Application
The Siemens 3RT1054-6NP36 functions primarily as a switching device for controlling the flow of power to electrical loads, especially for motor control (Direct-On-Line starting).
- Switching Motors: Used for starting, stopping, and controlling 3-phase AC motors up to 55 kW.
- Resistive Loads: Suitable for switching large resistive loads (AC-1 rating up to 160 A).
- Safety Applications: Can be integrated into safety circuits due to its reliable switching mechanism.
- Industrial Automation: Essential component in control panels for pumps, compressors, HVAC systems, and conveyor belts.
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