3RV2021-4NA20
SIRIUS 3RV2021-4NA20, S0 frame motor protection circuit breaker, adjustable current 23-28A, spring terminals, instantaneous trip 364A, CLASS 10 overload characteristic, suitable for screwless quick wiring motor protection applications.
Product Positioning
The SIRIUS 3RV2021-4NA20 is a Siemens S0 frame motor protection circuit breaker with a spring-loaded terminal design and an adjustable current range of 23 to 28A. It is suitable for basic motor protection applications requiring quick wiring and no additional auxiliary contacts.
Core Product Advantages and Features
Spring-loaded quick-connect terminals
The main circuit uses spring-type terminal connections, making installation and maintenance wiring work more time-saving and labor-saving.
Precise overload current setting
The current is adjustable from 23 to 28A, and the protection point can be finely adjusted according to the actual rated current of the motor.
CLASS 10 breakout feature
In case of overload, it operates according to the standard timing of CLASS 10, taking into account both motor starting and protection needs.
Standard rail installation
It adopts 35mm standard guide rail quick-release installation, suitable for various distribution box panel configurations.
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SIRIUS 3RV2021-4NA25, S0 frame motor protection circuit breaker, adjustable current 23-28A, spring terminals, built-in 1NO+1NC auxiliary switch, instantaneous trip 364A, maximum short circuit current interruption of 4kA below 690V.
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3RV2021-4NA10
SIRIUS 3RV2021-4NA10, S0 frame motor protection circuit breaker, adjustable current 23-28A, screw terminals, instantaneous trip 364A, breaking capacity up to 100kA at 240V, suitable for three-phase motor circuit protection below 690V.