Siemens 3RT2026-1BP40 SIRIUS Power Contactor, 25A, 11kW, 230V DC, S0 Original Brand New

Overview

The Siemens SIRIUS 3RT2026-1BP40 Power Contactor is a high-performance, 3-pole switching device engineered for reliable motor starting and load switching in industrial and commercial environments. Part of the proven SIRIUS 3RT2 contactor family, this model offers a robust and compact solution (Size S0) for applications up to $11\text{ kW}/400\text{ V}$ (AC-3e/AC-3).

Key features include a powerful $230\text{ V DC}$ control coil for stable and low-power control operation, and integrated auxiliary contacts ($1\text{ NO}+1\text{ NC}$) for seamless integration into control circuits. The device uses reliable screw terminals for secure and straightforward wiring of both main and control circuits. Designed for global use, the 3RT2026-1BP40 is the ideal choice for demanding motor control applications requiring high endurance and safety.

Benefit & Key Advantages

1. High-Performance Motor Control: Rated for $25\text{ A}$ (AC-3) and $11\text{ kW}$, providing reliable switching for medium-sized three-phase motors.
2. Global Standard & Reliability: As a Siemens SIRIUS product, it adheres to international standards (IEC, UL/CSA) and ensures long-term operational excellence.
3. Integrated Auxiliary Contacts: The built-in $1\text{ NO}+1\text{ NC}$ contacts simplify wiring for interlocking, signaling, and control functions.
4. DC Coil Efficiency: The $230\text{ V DC}$ coil offers robust closing and holding power with reduced power consumption compared to standard AC coils.
5. Easy Installation: Features a compact Size S0 design and reliable screw-type terminals for quick and secure mounting on a standard $35\text{ mm}$ DIN rail.
6. Extensibility: Compatible with the full range of SIRIUS 3RT2 accessories, including overload relays and additional auxiliary switch blocks, for building complete motor feeders.

Function / Application

The 3RT2026-1BP40 power contactor is primarily designed for:

• Switching Three-Phase AC Motors: Ideal for frequent starting and stopping of motors in machinery, conveyors, pumps, and ventilation systems.
• Switching Resistive Loads: Suitable for controlling heating systems and lighting loads.
• Use in Motor Starters: The core component in direct-on-line (DOL) and reversing starters when combined with an overload relay.
• Industrial Automation Systems: Used as an interface between control devices (like PLCs) and high-power loads.

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