Overview
The Siemens 3RT2036-3AL20 power contactor is a core component of the modular SIRIUS system, engineered for reliable switching of electric motors up to 22 kW / 400 V (51 A). As a Size S2 device, it is built for compact, high-performance load feeders. This specific model features a 230V AC control coil and a convenient hybrid of screw terminals for the main circuit and spring-loaded terminals for the control and auxiliary circuits, ensuring fast, vibration-proof, and maintenance-free wiring where it matters most.
Key Features & Function
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Rated Current & Voltage: 51 A, 22 kW / 400 V AC
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Poles: 3-pole for robust load management
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Auxiliary Contacts: 1 NO + 1 NC for enhanced control flexibility
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Terminal Type: Main circuit with screw terminals; control and auxiliary circuits with spring-loaded terminals
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Size: Compact S2 design for space-efficient installations
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Frequency: Operates at 50/60 Hz for versatile AC applications
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AC-3e/AC-3 Rated: Optimized for motor switching and industrial machinery
Benefit
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Reliable Motor Control: Safely switches motors up to 22 kW without compromise.
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Durable Design: Screw and spring-loaded terminals ensure long-lasting and secure connections.
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Flexible Integration: Auxiliary contacts allow customization of control circuits.
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Compact & Efficient: S2 size design reduces panel space requirements.
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Industry-Standard Compatibility: Works seamlessly in automation and industrial setups.
Application
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Industrial motor control
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Automation systems
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Electrical panels and switchgear
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AC-3 rated machinery
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