Overview
The Siemens 3RT2045-3AL20-1AA0 is a premium power contactor designed for reliable operation in industrial and commercial electrical applications. With a 3-pole configuration and AC-3e/AC-3 rating, it is suitable for switching motors up to 37 kW at 400 V. The contactor features durable screw terminals for the main circuit and convenient spring-loaded terminals for control and auxiliary circuits, ensuring secure and efficient installation. Its compact size S3 and upright mounting position allow flexible integration into control panels.
Key Benefit
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Reliable Performance: Supports high motor loads up to 37 kW / 400 V.
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Versatile Installation: Compatible with upright mounting positions in size S3 control panels.
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Durable Design: Screw terminals for main circuit and spring-loaded terminals for auxiliary circuits ensure longevity and safety.
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Enhanced Control: Equipped with 1 NO + 1 NC auxiliary contacts for flexible control options.
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High Efficiency: AC-3e/AC-3 rating guarantees optimal motor switching performance.
Function
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Switching three-phase AC motors in industrial applications
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Providing auxiliary contact signals for control circuits
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Safe and reliable integration into automation systems
Technical Specification
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Type: Power Contactor
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Rated Current: 80 A
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Rated Power: 37 kW / 400 V
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Poles: 3
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Control Voltage: 230 V AC, 50/60 Hz
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Auxiliary Contacts: 1 NO + 1 NC
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Main Circuit Terminals: Screw terminals
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Control & Auxiliary Circuit Terminals: Spring-loaded terminals
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Size: S3
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Mounting Position: Upright
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