Siemens 3RT2028-1AH00 Power Contactor 38A, 18.5 kW, 3-Pole, 48V AC, S0 Size Original Brand New

Overview

The Siemens 3RT2028-1AH00 is a high-performance 3-pole power contactor from the SIRIUS 3RT2 series, engineered for reliable switching and control of electric motors up to 18.5 kW / 400 V. This size S0 contactor features a 48 V AC, 50 Hz operating coil and includes integrated auxiliary contacts (1 NO + 1 NC) for simplified wiring and status monitoring. Its robust screw terminals ensure a secure and maintenance-friendly connection in industrial control panels.

Features

• Rated operational current: 38 A

• Power rating: 18.5 kW / 400 V

• 3-pole configuration for versatile industrial applications

• Coil voltage: 48 V AC, 50 Hz

• Auxiliary contacts: 1 NO + 1 NC

• Screw terminal connection for secure installation

• Compact S0 size for space-saving setups

• AC-3e / AC-3 rated for motor and load control

Benefit

• Space-Saving Design: Its compact Size S0 dimensions allow for high-density installation in control cabinets, a key advantage over older models (replaces previous 3RT1 series).
• High Performance: Rated for 38 A operational current and 18.5 kW at 400 V, delivering reliable performance for demanding applications.
• Easy Installation: Screw terminal connection technology is familiar, robust, and provides excellent vibration resistance for a durable setup.
• System Integration: Perfectly coordinated with other components in the SIRIUS modular system (e.g., overload relays, circuit breakers) for fast, error-free system build-up.
• Global Compliance: Fully compliant with international standards including IEC and UL/CSA, making it suitable for global applications.

Application

• Industrial motor control

• Lighting and heating circuits

• Automation systems

• Electrical panels and distribution systems

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