Overview
The Siemens 3RT7027-1AC20 is a high-performance SIRIUS 3RT series contactor designed for industrial control applications. This robust device is engineered for reliable switching of motors and other resistive loads. With an impressive AC-3 rating of 32A and a power rating of 15kW at 400V, it is perfectly suited for a wide range of demanding tasks.
Its compact S0 size makes it ideal for space-constrained installations, while the convenient screw terminals ensure a secure and straightforward connection. The contactor features a 24V AC 50/60Hz operating coil, providing a common and flexible control voltage for integration into various control circuits. As a genuine Siemens product, it guarantees exceptional quality, durability, and safety, making it a top choice for professionals seeking reliable motor control solutions.
Key Features & Specification
- Product Type: Contactor
- Series: Siemens SIRIUS 3RT
- Model Number: 3RT7027-1AC20
- Operating Current (AC-3): 32A
- Rated Power (AC-3): 15kW at 400V
- Operating Coil Voltage: 24V AC (50/60Hz)
- Size: S0
- Terminal Type: Screw Terminals
- Auxiliary Contacts: W/O (without) auxiliary contacts
- Mounting: DIN rail mountable
Benefit
- High Reliability: Built with Siemens’ renowned engineering, this contactor offers a long service life and dependable performance, reducing downtime and maintenance costs.
- Compact Design: The S0 size saves valuable space in control cabinets and panels, allowing for more efficient layouts.
- Easy Installation: Screw terminals provide a simple and secure wiring method, speeding up installation and commissioning.
- Versatile Application: Suitable for a wide range of motor control applications, including pumps, fans, conveyors, and more.
- Cost-Effective Solution: A durable and long-lasting component that provides excellent value over its operational life.
- Safety and Standards: Manufactured to meet strict international standards, ensuring safe operation and compliance with industrial regulations.
Function
The primary function of the Siemens 3RT7027-1AC20 contactor is to remotely switch power to electrical loads, particularly motors. When the 24V AC coil is energized, it closes the main power contacts, allowing current to flow to the connected equipment. When the coil is de-energized, the contacts open, safely disconnecting the load. This is a fundamental component in motor starter circuits, control panels, and automation systems, providing a safe and efficient way to control high-power devices from a low-power control signal.
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