3RA21201KA240AP0

Siemens SIRIUS 3RA2120-1KA24-0AP0, S0 frame fuseless direct starter assembly, adjustable current 9...12.5 A, suitable for 5.5 kW three-phase motors, AC 230V control voltage, screw terminals, Class 2 fit, Iq 150kA, supplied by Kenxin Motor Company.

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The 3RA2120-1KA24-0AP0 is a Siemens SIRIUS series S0 frame fuseless direct starter assembly that integrates a circuit breaker and a contactor into a single mechanism. It has an adjustable current range of 9...12.5 A and is suitable for direct starting applications of 5.5 kW three-phase motors.

Core Product Advantages and Features
Integrated design of circuit breaker and contactor
Integrating current-limiting circuit breakers and contactors into the same combination mechanism saves control panel wiring and installation space.
CLASS 10 overload protection features
Built-in thermal overload release provides CLASS 10 operating characteristics, protecting the motor from overload damage.
AC 230V control voltage
The coil control voltage is AC 230V, which is convenient to match the power supply specifications of the existing control circuit on site.
High short-circuit withstand capability
According to IEC 60947-4-1 standard, the rated short-circuit current Iq reaches 150,000A and meets the Class 2 coordination level.
Adjustable current range 9...12.5 A
The overload protection setting can be adjusted within the range of 9...12.5 A to accurately match the actual rated current of the motor.
project Specification
Product Series SIEMENS SIRIUS 3RA21
Product Type Fuseless direct starter combination (DOL Load Feeder)
Frame size S0
Adjustable current range (overload protection) 9...12.5 A
Rated power (400V AC-3) 5.5 kW
Control voltage AC 230V
Auxiliary contacts 1 NO+1 NC (Contactor)
Wiring method Spiral terminal block (standard rail mounting)
Coordination Level Type 2 also conforms to Type 1
Short-circuit withstand current Iq (400V) 150,000 A (according to IEC 60947-4-1)
Overload trip rating CLASS 10
Mechanical life Approximately 10 million operation cycles
Ambient temperature -20°C ~ +60°C
Place of origin Made in Germany