3RV2021-4PA15

SIRIUS 3RV2021-4PA15, S0 frame motor protection circuit breaker, adjustable current 30-36A, screw terminals, built-in 1NO+1NC auxiliary switch, instantaneous trip 432A, with dual short circuit and overload protection, suitable for motor circuits below 690V.

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Siemens SIRIUS 3RV2021-4PA15 Motor Protection Circuit Breaker Product Image

Product Positioning

The SIRIUS 3RV2021-4PA15 is a Siemens S0 frame motor protection circuit breaker with an adjustable current range of 30 to 36A. It features a built-in auxiliary switch for easy linkage of control circuits and is suitable for overload and short-circuit protection of medium-sized three-phase motors.

Core Product Advantages and Features

Adjustable overload protection

The current adjustment range is 30 to 36A, which can be precisely set according to the motor's rated current to avoid overheating and burnout.

Built-in auxiliary switch

The main body has a built-in 1NO+1NC horizontal auxiliary switch, which facilitates feedback of the motor's operating status to the control circuit.

transient short circuit trip

The instantaneous trip response value is 432A, which can quickly disconnect when a short circuit occurs, protecting the circuit components.

Screw terminal design

The main circuit uses screw terminal connections, ensuring stable and reliable wiring construction and convenient maintenance and replacement.

project	Specification
model	3RV2021-4PA15
Frame size	S0
Overload current adjustable range	30...36 A
Instantaneous short-circuit release value (N-release)	432 A
Break away from level	CLASS 10
Terminal type	Screw terminals
Auxiliary switch	Built-in 1NO+1NC horizontal auxiliary switch
Maximum short-circuit breaking capacity Icu (400V)	20 kA
Operating short-circuit breaking capacity Ics (400V)	10 kA
Rated operating voltage	690 V AC
Extreme number	3P
External dimensions (height x width x depth)	97 x 45 x 97 mm
Installation method	35mm standard guide rail

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