Siemens 3RT2028-2NP30 Power Contactor 38A, 18.5kW, 3-Pole, AC/DC Coil, Varistor, S0 Size Original Brand New

Overview

The Siemens 3RT2028-2NP30 is a high-performance power contactor designed for reliable switching of motors and industrial equipment. Engineered for demanding AC-3 and AC-3e applications, this 3-pole contactor supports loads up to 38 A and 18.5 kW at 400 V. With a universal coil voltage of 200–280 V AC/DC, it offers flexibility for a wide range of control systems.

Equipped with spring-loaded terminals, an integrated varistor for surge protection, and built-in auxiliary contacts (1 NO + 1 NC), this compact contactor (size S0) ensures fast, secure installation and dependable operation. Backed by Siemens’ reputation for innovation and durability, it’s a perfect fit for modern industrial automation needs.

Key Benefit

• Versatile Voltage Range: Operates seamlessly on both AC and DC supplies (200–280 V AC/DC).

• High Switching Capacity: Handles up to 38 A and 18.5 kW at 400 V in AC-3 duty.

• Built-in Protection: Integrated varistor safeguards against voltage spikes.

• Quick Installation: Spring-loaded terminals ensure fast, secure wiring.

• Auxiliary Contacts Included: Comes with 1 NO + 1 NC contacts for control circuit integration.

• Space-Saving Design: Compact S0 size ideal for panel building and space-constrained environments.

Function

The Siemens 3RT2028-2NP30 functions as a power contactor, designed to switch electrical loads, especially motors, in industrial control circuits. Suitable for AC-3/AC-3e applications, it ensures efficient switching, protection against surge events, and integration into both AC and DC control systems with its wide coil voltage range.

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