What is the main function of this circuit breaker?
The Siemens 3RV2021-4NA10 is a circuit breaker size S0 designed for motor protection. It helps protect motors from overloads, short circuits, and phase failures.
What are the dimensions of this circuit breaker?
The dimensions of the 3RV2021-4NA10 circuit breaker are 97 mm in height, 45 mm in width, and 97 mm in depth.
What type of electrical connections does this circuit breaker have?
The 3RV2021-4NA10 circuit breaker has screw-type terminals for the main current circuit, with the arrangement of electrical connectors for the main current circuit at the top and bottom.
What is the required spacing for this circuit breaker?
The required spacing for the 3RV2021-4NA10 circuit breaker depends on the voltage level. For example, at 400 V, the required spacing is 30 mm downwards, upwards, and at the side for both grounded and live parts.
What type of conductor cross-sections can be connected to this circuit breaker?
The 3RV2021-4NA10 circuit breaker can be connected to solid or stranded conductors with cross-sections of 2x (1 ... 2.5 mm²), 2x (2.5 ... 10 mm²), and finely stranded conductors with core end processing of 2x (1 ... 2.5 mm²), 2x (2.5 ... 6 mm²), and 1x 10 mm².
What is the tightening torque for the main contacts?
The tightening torque for the main contacts of the 3RV2021-4NA10 circuit breaker with screw-type terminals is 2 to 2.5 N·m.
What is the B10 value of this circuit breaker?
The B10 value of the 3RV2021-4NA10 circuit breaker with a high demand rate according to SN 31920 is 5,000.