Description
The Siemens 3RU2136-4FB0 is a thermal overload relay engineered for dependable motor protection in demanding HVAC and industrial applications. Designed for Size S2 contactors, this relay provides Class 10 trip characteristics and covers a wide current adjustment range of 28 to 40 amps, making it well-suited for protecting three-phase motors across a variety of load profiles.
Key Features
- Current setting range: 28–40 A
- Trip class: Class 10 (CL10) for fast motor protection response
- Frame size: S2 — compatible with Siemens S2-frame contactors
- Screw terminal connections for secure, reliable wiring
- Bimetallic thermal overload protection guards against sustained overcurrents
- Manual and automatic reset modes available
- Integrated test and reset button for easy commissioning and maintenance
- Phase failure sensitivity helps prevent single-phasing damage to motors
- Compact, space-saving design for panel and starter assembly mounting
Application
The 3RU2136-4FB0 is ideal for protecting HVAC compressor motors, fan motors, pump motors, and other three-phase induction motors where reliable overload protection is critical. Its Class 10 trip characteristic is optimized for standard motor applications requiring prompt tripping under overload conditions.
Compatibility
- Designed for direct mounting onto Siemens S2-frame contactors (3RT2 series)
- Part of the Siemens 3RU2 overload relay product family
- Suitable for use in motor starter combinations and control panel assemblies
Specifications
- SKU: 3RU2136-4FB0
- Brand: Siemens
- Current Range: 28–40 A
- Trip Class: Class 10 (CL10)
- Frame Size: S2
- Terminal Type: Screw
- Protection Type: Thermal Overload
Reviews
There are no reviews yet.