Overview
The Siemens SIRIUS 3RT1055-2AV36 is a robust and high-performance power contactor designed for switching high-power loads in industrial applications. It belongs to the reliable SIRIUS 3RT series, known for its compact design, excellent reliability, and long service life. This specific model is engineered for AC-3e/AC-3 operation up to 150 A and 75 kW at 400 V, making it ideal for controlling large motors, heating systems, and other demanding equipment.
Key Features & Function
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Rated for AC-3e / AC-3: 150 A, 75 kW / 400 V AC (50-60 Hz)
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DC Control Voltage: Uc 380-420 V DC
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3-Pole Main Circuit: Ensures efficient load switching
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Auxiliary Contacts: 2 NO + 2 NC for versatile control applications
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Drive Type: Conventional operation
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Main Circuit Connection: Busbar
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Auxiliary Circuit Connection: Spring-loaded terminal for secure installation
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Durable and Reliable: Designed to withstand heavy industrial use
Benefit
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High reliability for motor and equipment control
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Compact and efficient design saves space in electrical panels
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Simplifies control wiring with auxiliary contacts
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Reduces maintenance thanks to durable construction
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Compatible with a wide range of industrial applications
Application
This contactor is primarily used in:
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Controlling large industrial motors (DOL, Reversing Starters).
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Switching resistive and inductive loads (e.g., heating, lighting).
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General power switching applications in industrial automation and panel building.
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