Overview
The Siemens SIRIUS 3RT2028-1BG40 Power Contactor is a high-performance component designed for reliable motor switching and general industrial applications. Part of the compact and comprehensive SIRIUS modular system, this size S0 contactor delivers a robust current rating of 38 A for AC-3/AC-3e operations and an operating power of 18.5 kW at 400 V.
Engineered with a dedicated 125 V DC coil for reliable control, and featuring built-in 1 Normally Open (NO) + 1 Normally Closed (NC) auxiliary contacts, it minimizes complexity and simplifies wiring. The classic screw terminal connection ensures secure and proven wiring for demanding industrial environments.
Key Features & Benefit
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High Performance: Handles up to 38 A, 18.5 kW / 400 V, ideal for demanding motor operations.
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Durable Design: Siemens quality ensures long-lasting reliability and minimal maintenance.
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Compact Size S0: Space-saving design for easy integration into control panels.
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Versatile Control: Equipped with 1 NO + 1 NC auxiliary contacts for flexible circuit control.
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Secure Connections: Screw terminals provide safe and reliable wiring.
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Wide Application: Perfect for industrial motor control, automation systems, and machinery.
Technical Function
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Poles: 3
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AC-3 / AC-3e Rating: 38 A, 18.5 kW / 400 V
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Coil Voltage: 125 V DC
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Auxiliary Contacts: 1 NO + 1 NC
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Terminal Type: Screw terminal
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Size: S0
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