Overview
The Siemens 3RT2028-1AC20 power contactor is designed for reliable switching of motors and electrical loads in industrial and commercial applications. Built with durability and precision, it supports AC-3 and AC-3e duty classes, handling currents up to 38 A and motor ratings up to 18.5 kW at 400 V. Its 3-pole configuration and auxiliary contacts make it ideal for complex control circuits requiring flexible operation.
Key Features
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Rated operational current: 38 A (AC-3/AC-3e)
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Motor control capacity: 18.5 kW / 400 V
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3-pole contactor for versatile applications
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Coil voltage: 24 V AC, 50/60 Hz
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Auxiliary contacts: 1 NO + 1 NC
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Screw terminals for secure connections
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Compact Size S0 for space-saving installations
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High durability and reliable performance for industrial use
Benefit
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Ensures efficient motor and load control in industrial environments
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Reduces downtime with robust, long-lasting components
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Flexible operation with auxiliary contacts for advanced circuit control
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Easy installation with screw terminal design
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Compatible with standard Siemens S0 motor starter assemblies
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Suitable for both AC-3 and AC-3e switching applications
Applications / Functions
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Switching and controlling motors, pumps, and fans
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Industrial automation and motor starter circuits
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Control of lighting and heating loads
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Integration into electrical panels and motor control centers
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Ideal for commercial and industrial electrical installations
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