Overview
The Siemens 3RT2045-3AM20 is a high-performance power contactor designed for industrial and commercial electrical applications. With its robust design, it ensures reliable switching of AC motors and other electrical loads. Optimized for AC-3e and AC-3 usage, this contactor supports heavy-duty operations, making it ideal for modern automation systems and motor control centers.
Key Benefit
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High Current Capacity: Rated at 80 A, capable of handling up to 37 kW at 400 V.
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Versatile Operation: AC-3e / AC-3 rating ensures reliable performance under motor starting and stopping conditions.
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Durable Design: Screw terminals for main circuits and spring-loaded terminals for control circuits ensure secure and long-lasting connections.
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Compact Size: Size S3 allows for easy installation in tight spaces.
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Enhanced Control: Comes with 1 NO + 1 NC auxiliary contacts for flexible control options.
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Reliable Switching: Suitable for frequent switching in industrial applications.
Function
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Switching of AC motors and resistive loads.
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Integration into motor control systems and automation panels.
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Provides safe and reliable isolation of circuits during maintenance.
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Supports auxiliary control circuits via NO and NC contacts.
Technical Specification
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Model Number: 3RT2045-3AM20
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Type: Power Contactor
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Poles: 3-pole
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Current Rating: 80 A
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Power Rating: 37 kW / 400 V
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Operating Voltage: 208 V AC, 50/60 Hz
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Auxiliary Contacts: 1 NO + 1 NC
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Main Circuit Connection: Screw terminal
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Control & Auxiliary Circuit Connection: Spring-loaded terminal
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Size: S3
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Application: Industrial motor control, automation, electrical switching
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