Siemens 3RT2027-1AT60 SIRIUS Power Contactor, 32A, 600V AC Coil, 3-Pole, Size S0 Original Brand New

Overview: Siemens SIRIUS 3RT2027-1AT60 Power Contactor

The Siemens 3RT2027-1AT60 is a high-performance, 3-pole SIRIUS power contactor designed for reliable switching of electric motors and non-inductive loads. Part of the compact and versatile SIRIUS modular system, this size S0 contactor features a robust design for industrial applications.

It is rated for an operational current of 32 A (AC-3e/AC-3) and a power rating of 15 kW at 400 V. The control circuit operates on 600 V AC at 60 Hz, making it suitable for specific North American/industrial supply networks. It comes equipped with convenient screw terminals for secure wiring and base-mounted auxiliary contacts consisting of 1 Normally Open (NO) and 1 Normally Closed (NC) contact, simplifying integration into control circuits.

Technical Specifications

• Product Number: 3RT2027-1AT60
• Series: SIRIUS 3RT20
• Type: Power Contactor
• Number of Poles: 3
• Operational Current (AC-3e/AC-3): 32 A
• Operational Power: 15 kW at 400 V
• Coil Voltage (Control Supply Voltage): 600 V AC, 60 Hz
• Auxiliary Contacts: 1 NO + 1 NC (Integrated)
• Connection Type: Screw Terminal
• Contactor Size: S0
• Motor HP Rating (Typical): 20 HP at 460 V (Refer to local standards/datasheet for exact rating)
• Mounting: DIN rail or screw fixing

Benefits & Advantages

• High Performance in Compact Design: The Size S0 form factor offers powerful motor switching capabilities (up to 15 kW / 32 A) while saving valuable panel space.
• Global Standard Compliance: SIRIUS contactors are approved globally (e.g., IEC, UL/CSA), making them suitable for international machine building and plant engineering.
• High Contact Reliability: Features high-quality contacts, ensuring safe and functional switching with a long mechanical service life.
• Simple Integration: The integrated 1 NO + 1 NC auxiliary contacts reduce complexity and wiring effort.
• Easy Wiring: Secure and widely compatible screw terminals allow for straightforward installation and maintenance.
• IE3/IE4 Ready: Optimized for use with high-efficiency IE3 and IE4 motors.

Function

The 3RT2027-1AT60 acts as an electrically controlled switch for a power circuit. When the 600 V AC control coil is energized, the 3-pole main contacts close, connecting the electric motor or load to the main power supply. The integrated auxiliary contacts (1 NO / 1 NC) change state simultaneously, providing feedback and interlocking functions necessary for motor control circuits, such as status signaling and preventing simultaneous operation of reversing contactors. It is primarily used for AC-3e/AC-3 applications—switching squirrel-cage motors during operation (starting and stopping).

For more of our premium industrial control and automation products, visit turll.