Description
The Siemens 3RV2021-4BA10 is a compact, high-performance Motor Starter Protector (MSP) from the 3RV2 series, designed to provide reliable short-circuit and overload protection for three-phase motors in commercial and industrial HVAC applications. With a current setting range of 14–20A and convenient screw terminal connections, this device simplifies installation while delivering robust motor protection in a space-saving design.
Key Features
- Current setting range: 14–20A, adjustable to match motor full-load amperage
- Screw terminal connections for secure, tool-friendly wiring
- Integrated short-circuit and overload protection in a single compact device
- Manual ON/OFF switching capability for local motor isolation
- Part of the Siemens 3RV2 series — compatible with 3RV2 accessories, auxiliary contacts, and bus systems
- Suitable for direct-on-line motor starting applications
- Trip-free mechanism prevents reset while fault condition persists
- DIN rail mountable for easy panel integration
Typical Applications
- HVAC motor protection in air handling units, chillers, and cooling towers
- Commercial and industrial motor control panels
- Pump and fan motor protection
- Control cabinet installations requiring compact motor protection
Why Choose the Siemens 3RV2021-4BA10?
The 3RV2021-4BA10 combines motor protection and switching in a single, space-efficient unit, reducing panel footprint and wiring complexity. Its adjustable current range allows precise calibration to the motor’s nameplate amperage, minimizing nuisance trips while ensuring reliable fault protection. As part of the proven Siemens 3RV2 platform, this MSP integrates seamlessly with a wide range of accessories and contactor combinations for flexible system design.
Reviews
There are no reviews yet.