Siemens 3RT2026-1DB40 Power Contactor 3-Pole, 25A, 11kW/400V, 24V DC Coil, Varistor and 1NO+1NC Original Brand New

Overview

The Siemens 3RT2026-1DB40 is a high-performance power contactor designed for reliable motor control in industrial automation and power distribution applications. Built with AC-3e/AC-3 ratings, this contactor efficiently handles 25A at 11kW (400V) loads, ensuring robust switching operations and extended service life. The unit features a 24V DC control voltage, 3-pole configuration, and integrated varistor protection to guard against voltage spikes.

Engineered to Siemens’ strict quality standards, this compact S0-size contactor delivers consistent performance, easy installation, and secure electrical connections via screw terminals. Ideal for use in motor starters, control panels, and automation systems.

Key Features & Function

• Model: Siemens 3RT2026-1DB40

• Rated Operational Current (AC-3): 25 A

• Motor Power: 11 kW at 400 V

• Poles: 3-Pole configuration

• Control Voltage: 24 V DC

• Built-in Varistor: Provides surge suppression for coil protection

• Auxiliary Contacts: 1 NO + 1 NC (normally open and normally closed)

• Terminal Type: Screw terminal for secure and fast installation

• Size: S0 (compact and space-saving)

• Mounting Type: DIN rail or panel mounting compatible

• Standards: IEC and UL compliant

Benefit

• High reliability: Designed for continuous and heavy-duty industrial use

• Easy integration: Compact S0 design fits seamlessly into control panels

• Enhanced protection: Built-in varistor minimizes voltage transients

• Flexible control: Suitable for DC control systems (24V DC)

• Low maintenance: Robust Siemens engineering ensures long service life

• Energy-efficient: Optimized coil power for reduced energy consumption

Application

• Motor control centers (MCC)

• HVAC and pumping systems

• Industrial automation and process control

• Conveyors, compressors, and machine tools

• Electrical control panels and switchgear systems

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