3RV2021-1KA16

The Siemens SIRIUS 3RV2021-1KA16 is an S0-size three-pole motor starter protector, belonging to the 1K series. It features Class 10 tripping characteristics and IP20 protection rating, and can be installed on a 35mm DIN rail. It is suitable for overload and short-circuit protection requirements of three-phase motor circuits.

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The Siemens SIRIUS 3RV2021-1KA16 is an S0 size three-pole motor starter protector, belonging to the 3RV2021 series 1K specification model, and is suitable for overload and short circuit protection applications of three-phase motors.

Core Product Advantages and Features
S0 standard casing design
Featuring S0 standard housing dimensions, it is compact and can be directly mounted on a 35mm DIN rail, making it suitable for control box configurations with limited space.
Class 10 Breakthrough Level
It complies with the Class 10 trip characteristics of IEC/EN 60947-4-1 standard, providing a stable and reliable protection response under overload conditions.
IP20 protection rating
The main body has an IP20 protection rating and is suitable for installation in general industrial distribution boxes.
Extended specifications in the same series
It shares the same casing and installation method with other models in the 3RV2021 series, which facilitates spare parts management and model planning.
project Specification
brand Siemens
series SIRIUS 3RV2021
Product Category Motor starting protector (motor protection circuit breaker)
Casing size S0
Extreme number 3P
Rated operating voltage Up to 690V AC
Break away from level Class 10
Protection level IP20
Installation method 35mm DIN rail
Operating ambient temperature -20°C ~ +60°C