Siemens SIRIUS 3RT2028-1AL24 Power Contactor 38A, 18.5kW, 230V AC with 2 NO + 2 NC Aux Contacts Original Brand New

Overview

The Siemens SIRIUS 3RT2028-1AL24 is a high-performance power contactor designed for reliable switching of motors and other resistive loads. As part of the SIRIUS modular system, it offers a compact design (size S0), high reliability, and a long service life. This specific model is rated for AC-3e/AC-3 applications, handling a maximum current of 38 A and a power of 18.5 kW at 400 V.

The contactor features a 230 V AC coil (50/60 Hz) and comes equipped with an integrated, removable auxiliary switch block consisting of 2 normally open (NO) and 2 normally closed (NC) contacts, providing enhanced control and signaling capabilities.

Key Features

• High Performance: Rated for AC-3e/AC-3 switching of motors up to 18.5 kW (400 V).
• Robust & Reliable: Engineered for a long electrical and mechanical service life.
• Compact Design: Size S0 form factor saves valuable space in control cabinets.
• Versatile Auxiliary Contacts: Includes a built-in, removable auxiliary switch block (2 NO + 2 NC) for flexible control circuit integration.
• Easy & Secure Connection: Features user-friendly screw terminals for simple and reliable wiring.
• Modular System: Part of the comprehensive Siemens SIRIUS portfolio, ensuring seamless integration with other SIRIUS components like overload relays and circuit breakers.

Benefit

• Increased Productivity: Reliable operation reduces downtime and maintenance needs.
• Cost-Effective: A long service life and high performance-to-size ratio offer excellent value.
• Simplified Installation: Screw terminals and a compact design streamline mounting and wiring processes.
• Enhanced Safety: The robust design and reliable switching capabilities contribute to safer industrial environments.
• Future-Proof: Part of a standardized product family, making it easy to integrate into new and existing systems.

Function

The Siemens 3RT2028-1AL24 contactor is primarily used for:

• Switching 3-phase AC motors.
• Controlling resistive loads such as heating elements.
• Integration into automated control systems (e.g., PLCs) for remote switching.
• Acting as a main or control contactor in industrial machinery.

Technical Specification

• Product Number: 3RT2028-1AL24
• Rated Operational Current (Ie): 38 A (at AC-3e/AC-3)
• Rated Power: 18.5 kW (at 400 V)
• Number of Poles: 3-pole
• Control Supply Voltage: 230 V AC, 50/60 Hz
• Auxiliary Contacts: 2 NO + 2 NC (Removable)
• Terminal Type: Screw terminal
• Size: S0
• Mounting: DIN rail or screw fixing

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