Siemens 3RT2028-2CK64-3MA0 Power Contactor, 3-Pole, 38A, 18.5kW/400V, 110V AC Coil, Spring-Loaded Terminal Original Brand New

Overview

The Siemens 3RT2028-2CK64-3MA0 is a high-performance power contactor engineered for reliable motor control and switching applications. Designed for AC-3e/AC-3 operation, this 3-pole contactor ensures efficient power transmission and long-lasting durability. Ideal for industrial automation systems, control panels, and machinery, it delivers consistent performance with enhanced electrical safety.

Key Features and Specification

• Model: Siemens 3RT2028-2CK64-3MA0

• Rated Operational Current: 38 A

• Rated Power: 18.5 kW at 400 V

• Poles: 3-Pole configuration

• Control Voltage: 110 V AC (50 Hz) / 120 V AC (60 Hz)

• Operational Category: AC-3e / AC-3

• Auxiliary Contacts: 2 NO + 2 NC

• Protection Component: Built-in plugged-in varistor

• Terminal Type: Spring-loaded terminal for secure connection

• Size: S0 (compact design for space optimization)

• Switch Type: Captive auxiliary switch

Benefit

• Reliable Performance: Built to handle demanding switching operations in motor control circuits.
• Enhanced Safety: Integrated varistor ensures surge protection for longer equipment life.
• Easy Installation: Spring-loaded terminals allow quick and vibration-resistant wiring.
• Compact Design: Space-saving size S0 for optimized panel layouts.
• Versatile Application: Suitable for a wide range of industrial and commercial uses.

Application

• Motor starters and control systems

• HVAC and pump control panels

• Conveyor and automation systems

• Industrial machinery and production lines

• Electrical distribution panels

Functionality

The Siemens 3RT2028-2CK64-3MA0 operates as an electromagnetically controlled switch, allowing or interrupting current flow in motor circuits. The contactor’s AC-3 rating ensures robust switching performance under inductive load conditions, making it ideal for motor starting and operation.

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