3RT2028-2DB40

Description

Overview

The Siemens 3RT2028-2DB40 is a high-performance power contactor designed for reliable motor control and industrial automation systems. With its 3-pole configuration and 38 A capacity, it efficiently handles loads up to 18.5 kW at 400 V. Its robust design includes a plugged-in varistor for surge protection, auxiliary contacts (1 NO + 1 NC) for enhanced control, and spring-loaded terminals for secure and easy wiring. Size S0 ensures compact installation in control panels.

Key Benefit

• Reliable Performance: Supports AC-3e/AC-3 applications up to 38 A, ensuring consistent operation in industrial environments.

• High Power Handling: Can control motors and equipment up to 18.5 kW / 400 V.

• Enhanced Protection: Built-in varistor guards against voltage spikes, extending equipment life.

• Flexible Control: Auxiliary contacts 1 NO + 1 NC provide additional switching options for advanced automation setups.

• Easy Installation: Spring-loaded terminals simplify wiring and maintenance, saving time and reducing errors.

• Compact Design: Size S0 fits seamlessly into standard control panels.

Functionality

• Primary Function: Switching and controlling electrical power in industrial machinery and motor circuits.

• Control Voltage: Operates at 24 V DC coil voltage.

• Poles: 3-pole configuration for three-phase systems.

• Auxiliary Contacts: 1 normally open (NO) + 1 normally closed (NC) for versatile control options.

• Protection Features: Integrated varistor for surge suppression.

• Mounting & Terminals: Spring-loaded terminals for reliable and fast connections.

Technical Specification

• Model: Siemens 3RT2028-2DB40

• Rated Current: 38 A

• Power Rating: 18.5 kW / 400 V

• Number of Poles: 3

• Control Voltage: 24 V DC

• Auxiliary Contacts: 1 NO + 1 NC

• Varistor: Plugged-in for surge protection

• Terminal Type: Spring-loaded

• Size: S0

• Application: Motor control, industrial automation, machinery

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