Siemens SIRIUS 3RT2028-2AL24 Power Contactor, 38A, 18.5kW, AC 230V Coil, Spring-Loaded Original Brand New

Overview

The Siemens 3RT2028-2AL24 Power Contactor from the SIRIUS 3RT2 series is a high-performance, 3-pole switching device engineered for demanding motor and industrial control applications. As a Size S0 contactor, it offers a compact design without compromising on power, rated for 38 A current and up to 18.5 kW at 400 V (AC-3e/AC-3).

This specific model features an efficient 230 V AC (50/60 Hz) operating coil and an integrated, high-density auxiliary contact configuration of 2 Normally Open (NO) + 2 Normally Closed (NC), which includes a convenient removable auxiliary switch block.

Benefit

• Maximum Efficiency: Rated for AC-3e/AC-3 operation, ideal for switching motors up to 18.5 kW, maximizing system uptime and reliability.
• Fast, Maintenance-Free Wiring: Utilizes advanced spring-loaded terminals, ensuring vibration-proof connections that reduce installation time and eliminate the need for routine retightening.
• High Control Flexibility: The generous 2 NO + 2 NC auxiliary contacts allow for complex control, signaling, and interlocking circuits directly on the device.
• Integrated Modular System: Part of the SIRIUS modular system, ensuring perfect coordination with Siemens overloads, circuit breakers, and accessories.
• Global Standard Compliance: IEC and UL/CSA approved, making it suitable for international applications and IE3/IE4 motor readiness.

Application

The 3RT2028-2AL24 is the perfect component for:

• Starting, stopping, and controlling three-phase AC motors.
• Industrial machinery, including pumps, fans, compressors, and conveyer systems.
• HVAC and refrigeration control systems.
• Complex load circuits requiring multiple auxiliary contact points for feedback and interlocking.

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