Siemens 3RT2026-1DB44-3MA0 SIRIUS Power Contactor, Size S0, 25A, 11kW, 24V DC, 2NO + 2NC Aux Contacts Original Brand New

Overview

The Siemens 3RT2026-1DB44-3MA0 is a high-performance SIRIUS power contactor from the trusted Siemens brand. Engineered for robust motor control and switching applications, this compact Size S0 contactor offers reliability and efficiency. With a rated operational current of 25 A (AC-3e/AC-3) and a power rating of 11 kW at 400 V, it is ideal for a wide range of industrial environments. The 24 V DC control supply voltage ensures compatibility with modern control systems, and the built-in varistor provides enhanced surge protection for the coil, extending its lifespan.

Key Features & Specification

• Product Number: 3RT2026-1DB44-3MA0
• Contactor Type: Power Contactor
• Rated Operational Current (AC-3e/AC-3): 25 A
• Power Rating: 11 kW at 400 V
• Number of Poles: 3-pole
• Control Supply Voltage: 24 V DC with a plugged-in varistor
• Auxiliary Contacts: 2 Normally Open (NO) + 2 Normally Closed (NC)
• Terminal Type: Screw terminals for secure and reliable wiring
• Size: S0 (compact and space-saving)
• Auxiliary Switch: Captive auxiliary switch for fixed integration

Benefit

• High Reliability: Built with Siemens’ renowned quality, this contactor ensures long-term, dependable operation in demanding industrial settings.
• Enhanced Coil Protection: The integrated varistor effectively suppresses voltage spikes, protecting the coil from damage and ensuring a longer service life.
• Versatile Auxiliary Contacts: The 2 NO + 2 NC configuration provides flexibility for a variety of signaling and interlocking circuits.
• Space-Saving Design: Its compact Size S0 form factor allows for efficient use of space within control cabinets.
• Easy Installation: The intuitive design and screw terminals simplify installation and maintenance procedures.
• Safety & Compliance: Designed to meet international standards for motor control devices, ensuring safe and reliable operation.

Function

The Siemens 3RT2026-1DB44-3MA0 power contactor is primarily used for switching and controlling motors and other electrical loads. Its main functions include:

• Motor Control: Starting, stopping, and reversing three-phase motors.
• Load Switching: Controlling resistive and inductive loads in industrial automation and power distribution systems.
• Control Circuit Integration: The auxiliary contacts enable the contactor to be integrated into complex control and interlocking circuits for automated processes.

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