Siemens 3RT1054-8AR38-0PR0 Power Contactor 115 A, 55 kW, 3-Pole, AC/DC Original Brand New

Overview

The Siemens 3RT1054-8AR38-0PR0 is a high-performance power contactor designed for demanding industrial applications. Engineered to handle AC-3e/AC-3 loads up to 115 A and 55 kW at 400 V, this 3-pole contactor ensures reliable operation in both AC (50-60 Hz) and DC circuits up to 440-480 V. Its conventional main circuit with box terminals and screw terminal control/auxiliary circuits provides secure, long-lasting connections, while the integrated right auxiliary switch (3RH1921-2DE11) allows seamless automation and control integration.

Key Features

• Rated Current & Power: AC-3e/AC-3 115 A, 55 kW at 400 V

• Voltage Compatibility: AC (50-60 Hz) / DC up to 440-480 V

• Poles: 3-pole configuration for robust performance

• Auxiliary Switch: Right-side 3RH1921-2DE11 for enhanced control options

• Terminals: Main circuit with box terminal, control and auxiliary circuits with screw terminals

• Drive Type: Conventional, reliable operation in industrial environments

Benefit

• Ensures high operational reliability for heavy-duty industrial machinery

• Versatile compatibility with AC and DC systems

• Facilitates easy installation and maintenance

• Supports efficient automation with integrated auxiliary switches

• Long-lasting design reduces downtime and maintenance costs

Function & Application

The 3RT1054-8AR38-0PR0 contactor is primarily used for switching and controlling three-phase electrical loads, particularly motors. Its high current rating makes it suitable for:

• Starting and stopping large industrial motors (e.g., pumps, fans, compressors, conveyors).
• Switching resistive loads (e.g., heating systems).
• Integration into complex motor control centers and main distribution boards.
• Use in applications requiring a robust, reliable, and standardized IEC magnetic contactor.

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