Description
The Siemens 3RB3026-2QB0 is a solid state overload relay engineered for dependable motor protection across a wide range of commercial and industrial HVAC and mechanical system applications. Featuring an adjustable current setting range of 6 to 25 amps, this relay provides accurate, electronic overload detection without the thermal drift associated with traditional bimetallic overload devices.
Key Features
- Solid state electronic overload protection — no mechanical wear components
- Adjustable current range: 6–25A
- Designed for use with Siemens 3RT series contactors and motor starters
- Provides reliable protection against overload, phase loss, and phase imbalance
- Compact design for panel space efficiency
- Manual and automatic reset options
- Trip class selectable for application flexibility
Applications
- HVAC motor starters and control panels
- Commercial and industrial fan and pump motor protection
- Compressor motor protection circuits
- Building automation and mechanical room control panels
Why Choose Siemens Solid State Overload Relays?
Siemens solid state overload relays deliver superior accuracy and repeatability compared to conventional thermal overloads. The 3RB3026-2QB0 eliminates nuisance tripping caused by ambient temperature variations, ensuring your motors stay protected and operational. Its compatibility with the Siemens 3RT contactor family makes it a seamless upgrade or replacement for existing motor starter assemblies.







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