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3RU2126-4CB0

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Regular price $44.53
Sale price $44.53 Regular price


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Overview of Siemens 3RU2126-4CB0

Order the genuine Siemens 3RU2126-4CB0 thermal overload relay online today for your automation system. This industrial-grade protection device is designed for reliable motor protection in demanding environments. The Siemens 3RU2126-4CB0 is a 3-pole thermal overload relay, adjustable from 17 to 22 amps, providing overload and phase failure protection for motors. It is specifically engineered for use with Siemens 3RT202 contactors, making it a perfect fit for factory control panels and industrial automation setups. With its robust construction and proven Siemens reliability, this relay ensures long-term performance and safety in critical applications. Whether you are upgrading an existing system or building a new control panel, the Siemens 3RU2126-4CB0 is a trusted choice for engineers and maintenance professionals worldwide.

Key Features of Siemens 3RU2126-4CB0

  • Adjustable current range: 17–22 A for flexible motor protection
  • Thermal overload protection with phase failure detection
  • Mounts directly to Siemens 3RT202 contactors for seamless integration
  • Size S0 design for compact installation in control panels
  • Class 10 trip class for fast response to overloads
  • 1 NO and 1 NC auxiliary contacts for status monitoring
  • Screw terminal connections for secure wiring in main and auxiliary circuits
  • Designed for industrial automation and machine control applications

Technical Specs of 3RU2126-4CB0

Explore Siemens 3RU2126-4CB0 technical data for detailed parameters before installation.

Parameter Value
Type Thermal Overload Relay
Current Range 17–22 A
Size S0
Contactor Compatibility Siemens 3RT202
Contact Form 1 NO, 1 NC
Terminal Type Screw
Protection Class Class 10

Applications / Use Case

This Siemens 3RU2126-4CB0 is commonly used in industrial automation worldwide. It is ideal for protecting motors in factory control panels, production line systems, and packaging and conveyor operations. The relay’s overload and phase failure protection ensures safe operation in environments where motor reliability is critical. Engineers and maintenance teams rely on this device for its compatibility with Siemens contactors and its proven performance in demanding industrial settings.

Price & Availability

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3RU2126-4CB0

$44.53

  • ACHIEVING

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Does it come with a warranty?

Yes, All products are offered wth 1-Year warranty.

What is the condition of the product?

All products sold are New & Unused.

How fast is shipping?

All products are delivered within 2-8 business days depending on our stock location.

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