Siemens SIRIUS 3RT2027-1DB40 Power Contactor, 32A, 15kW, 24V DC Coil, Size S0 Original Brand New

Overview

The Siemens 3RT2027-1DB40 Power Contactor from the renowned SIRIUS 3RT20 series is a robust, compact, and high-performance switching device engineered for starting and switching asynchronous motors, as well as other electrical loads. Built for reliable operation, this 3-pole contactor is designed for an operational current of 32 A (AC-3e/AC-3) and can manage motor power up to 15 kW at 400 V. Its integrated features, like the plugged-in varistor for coil protection and the precise 24 V DC coil, make it an excellent choice for modern industrial control applications demanding high reliability and longevity.

Key Features & Function

• Product Number: 3RT2027-1DB40
• Contactor Type: Power Contactor (Motor Switching)
• Series: SIRIUS 3RT2
• Number of Poles: 3-pole
• Rated Operating Current (Ie): 32 A (AC-3e/AC-3 at 400V)
• Rated Operational Power: 15 kW / 400 V
• Control Supply Voltage: 24 V DC (Direct Current)
• Auxiliary Contacts: 1 Normally Open (1 NO) + 1 Normally Closed (1 NC)
• Surge Protection: Integrated plugged-in varistor (protects the coil and extends lifespan)
• Terminal Type: Screw Terminals
• Size: S0 (Standard industrial size for DIN rail mounting)
• Application: Ideal for controlling electric motors, heating, lighting, and other demanding industrial loads.

Benefit

1. High Reliability & Longevity: Part of the globally recognized Siemens SIRIUS system, ensuring exceptional mechanical and electrical service life for reduced downtime.
2. Space-Saving Design: The compact Size S0 footprint allows for efficient use of space within control cabinets.
3. Enhanced System Protection: The integrated varistor on the 24V DC coil significantly dampens switching surges, protecting the contactor and surrounding electronic components (PLCs, relays) from damage.
4. Simplified Wiring: Screw terminals offer a time-tested, robust connection method, making installation and maintenance straightforward.
5. Globally Standardized: Compliance with international standards (e.g., IEC, EN) makes it suitable for use in projects worldwide.

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