3RT2027-2BF40

Description

Overview

The Siemens SIRIUS 3RT2027-2BF40 is a high-performance, 3-pole power contactor designed for robust motor switching and control applications (AC-3e/AC-3 duty). Part of the trusted SIRIUS 3RT20 series, this Size S0 contactor offers an optimal blend of power and compact design. It is rated for 32 A at 400 V and handles motor power up to 15 kW. Key features include a 110 V DC coil for reliable control and integrated 1 NO + 1 NC auxiliary contacts for monitoring and interlocking. The convenient spring-loaded terminals ensure fast, vibration-proof, and maintenance-free wiring, making it ideal for modern industrial control panels.

Benefit

• Reliable Performance: Certified for both AC-3 (conventional) and AC-3e (high-efficiency) operational categories, ensuring suitability for a wide range of modern motor applications.
• Space-Saving Design: The compact Size S0 form factor allows for higher density in control cabinets, optimizing panel space.
• Fast & Secure Wiring: Spring-loaded terminals (often referred to as Push-in or Spring-Type) drastically reduce wiring time and ensure a reliable, vibration-proof connection without the need for periodic retightening.
• Integrated Flexibility: Built-in 1 NO and 1 NC auxiliary contacts eliminate the need for an external add-on block for basic interlocking and status signaling.
• DC Control Reliability: The 110 V DC coil provides consistent and reliable switching characteristics, often preferred in automated systems.

Application

The 3RT2027-2BF40 is perfect for switching electric motors, resistive loads, and general-purpose control in systems such as:

• Pumps and Conveyors
• Ventilation and HVAC Systems
• Machinery and Industrial Automation
• Distribution and Control Panels

For more Siemens SIRIUS products and a full range of industrial control components, visit turll today!