Overview
The Siemens 3RT2028-1AG20 is a reliable, industrial-grade power contactor designed for heavy-duty AC-3 and AC-3e applications. With a rated current of 38 A and power capacity up to 18.5 kW at 400 V, this 3-pole contactor ensures safe and efficient switching of electrical circuits. It features durable screw terminals and versatile auxiliary contacts (1 NO + 1 NC) to support complex control circuits. Compact in size (S0), it’s ideal for industrial automation, machinery, and electrical panels requiring robust and reliable switching solutions.
Key Benefit
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High Load Capacity: Supports up to 38 A and 18.5 kW / 400 V for demanding applications.
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Versatile Control Options: Equipped with 1 NO + 1 NC auxiliary contacts for flexible circuit integration.
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Durable & Reliable: Screw terminals and Siemens build quality ensure long-term performance.
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Compact Design: Size S0 for easy installation in tight control panels.
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Universal AC Compatibility: Operates efficiently at 110 V AC, 50/60 Hz.
Functions / Features
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3-pole power contactor for AC-3 / AC-3e applications
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Rated current: 38 A
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Rated power: 18.5 kW at 400 V
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Auxiliary contacts: 1 NO + 1 NC
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Screw terminal connection for secure wiring
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Compact S0 size for space-efficient installations
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Operating voltage: 110 V AC, 50/60 Hz
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Ideal for industrial automation, motors, and electrical control panels
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