Overview
The Siemens 3RT2038-3AL20-1AA0 is a high-performance power contactor designed for reliable switching of motors and industrial loads. Built with durability and efficiency in mind, it supports AC-3e/AC-3 applications up to 80 A and 37 kW at 400 V. This 3-pole contactor features 1 NO + 1 NC auxiliary contacts, screw terminals for the main circuit, and spring-loaded terminals for control and auxiliary circuits.
Ideal for industrial automation, control panels, and motor starters, this device ensures seamless operation in demanding electrical environments. Its compact S2 frame size and upright mounting make it easy to integrate into standard control cabinets.
Key Benefit
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High Load Capacity: Supports up to 80 A and 37 kW at 400V – ideal for heavy-duty applications.
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Versatile Operation: Rated for AC-3e/AC-3 switching for motors and resistive loads.
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Quick Installation: Screw terminals for power, spring-loaded terminals for control ease wiring.
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Reliable Auxiliary Contacts: Includes 1 normally open (NO) and 1 normally closed (NC) contact.
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Compact Design: Size S2 frame fits standard control panel configurations.
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Universal Voltage Support: Operates on 230V AC, 50/60 Hz for global compatibility.
Function & Application
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Motor switching in industrial automation
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Control panel construction and machinery installations
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Electrical load management in HVAC systems
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Integration with PLCs and smart relays
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Used in conveyor belts, pumps, fans, compressors
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