Siemens 3RT7046-1AC20 Contactor 95A 45kW, 24V AC Coil, Size S3 Screw Terminal Original Brand New

Overview: Siemens 3RT7046-1AC20 SIRIUS Contactor

The Siemens 3RT7046-1AC20 is a high-performance SIRIUS series power contactor designed for reliable switching of motors and resistive loads. This 3-pole contactor is rated for an AC-3 current of 95A at 400V, providing a robust solution for applications up to 45kW. Its compact Size S3 design and easy-to-use screw terminals make it ideal for integration into various industrial control systems and motor starter configurations. The 24V AC control voltage ensures compatibility with standard control circuits, offering a safe and efficient way to manage heavy-duty electrical loads.

Key Benefit

• High Performance and Reliability: Part of the trusted Siemens SIRIUS family, this contactor offers exceptional switching capacity and a long service life, minimizing downtime and maintenance costs.
• Energy Efficient: Optimized design and low power consumption on the control coil contribute to energy savings in your electrical systems.
• Space-Saving Design: The compact Size S3 form factor allows for efficient use of panel space, a crucial advantage in crowded industrial cabinets.
• Simple and Secure Installation: Featuring accessible screw terminals, the contactor allows for quick and secure wiring, ensuring a robust connection that resists vibrations.
• Versatile Application: Suitable for a wide range of applications, including motor control, lighting circuits, heating systems, and other general-purpose electrical switching tasks.

Function

The Siemens 3RT7046-1AC20 functions as a remote-controlled switch for high-current electrical circuits. It operates by using a low-power control voltage (24V AC) to energize an electromagnetic coil, which in turn closes the main power contacts. This allows for safe and efficient control of large loads, protecting equipment and personnel. It is specifically designed to handle the high inrush currents typical of motor start-up (AC-3 duty).

Technical Specification

• Product Type: Power Contactor
• Product Series: Siemens SIRIUS 3RT7
• Product Number: 3RT7046-1AC20
• Number of Poles: 3-pole
• Rated Operating Current (AC-3): 95A at 400V
• Rated Power (AC-3): 45kW at 400V
• Control Supply Voltage: 24V AC, 50/60 Hz
• Size: S3
• Terminal Type: Screw Terminal
• Operating Conditions: Suitable for operation up to 2,000 meters above sea level.

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