Product Description

Power Contactors, SIRIUS 3RT2 Series, 3-Pole, Screw Terminals, AC-3 Duty, Coil Variant BB408K – 3RT2026-1BB408K

🔹 Siemens SIRIUS 3RT2 Power Contactor – 3RT2026-1BB408K (AC-3 Duty, 3-Pole, 24V DC Coil, S0 Size, 25A Class, 1NO+1NC Auxiliary)

🔹 Product Description

The Siemens 3RT2026-1BB408K is a high-performance SIRIUS 3RT2 series power contactor designed for reliable switching of motors and industrial loads under AC-3 duty applications. It belongs to the S0 frame size category, offering compact construction with strong electrical performance suitable for industrial control panels and automation systems.

This model features a 3-pole configuration with durable screw-type terminals, ensuring secure and vibration-resistant wiring connections for long-term operational stability.

It is equipped with a 24V DC coil variant (BB408K), making it suitable for PLC-based control systems and modern industrial automation circuits.

The contactor also includes an integrated auxiliary contact block (1NO + 1NC), enabling reliable feedback signaling and control interlocking within electrical systems.

Built on the Siemens SIRIUS modular platform, it supports easy integration with overload relays and accessory modules, allowing flexible and scalable panel design.

With high electrical endurance, long mechanical life, and stable performance under frequent switching, this contactor ensures dependable operation in demanding industrial environments.

🔹 Key Features

• Genuine Siemens SIRIUS 3RT2 Series Contactor
• Model: 3RT2026-1BB408K
• 3-Pole heavy-duty switching design
• AC-3 duty optimized for motor control applications
• 24V DC coil (BB408K variant)
• S0 frame size (25A class)
• Screw terminal connection for secure wiring
• Integrated auxiliary contacts (1NO + 1NC)
• Compact modular design for panel integration
• High electrical and mechanical endurance
• Compatible with Siemens overload relays & accessories
• Suitable for industrial automation systems