3RV2021-4BA20

The SIRIUS 3RV2021-4BA20 is a Siemens S0 case three-pole motor protection circuit breaker with an adjustable overload current range of 20-25A, a rated current of 25A, a rated insulation voltage of 690V, and a Class 10 thermal-magnetic tripping mechanism. It can be combined with a SIRIUS contactor to form a direct starter and is suitable for the protection of three-phase motor circuits in general production lines.

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Siemens SIRIUS 3RV2021-4BA20 Motor Protection Circuit Breaker 20-25A

Product Positioning

The SIRIUS 3RV2021-4BA20 is a Siemens S0 case motor protection circuit breaker with an adjustable overload current range of 20-25A, providing stable three-phase motor protection.

Core Product Advantages and Features

Adjustable current range 20-25A

The knob scale can be finely adjusted according to the actual rated current of the motor to improve the accuracy of protection.

S0 compact housing design

It is compact in size, saves control panel space, and is easy to combine with contactors to form a starter.

Class 10 Thermomagnetic Detachment

It features both overload delay and short-circuit instantaneous protection, meeting the characteristics of general load startup.

IP20 basic protection

Suitable for installation inside general control panels, providing basic electric shock protection.

project	Specification
model	3RV2021-4BA20
Casing size	S0
Extreme number	3 poles
Overload current adjustable range	20-25 A
Rated current	25 A
Rated insulation voltage	690 V AC
Break away from level	Class 10
Protection level	IP20
Installation method	DIN rail mounting

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