What is the meaning of the Siemens 3RW soft starter order number?

Create Date: 2024-8-30 12:03:23|Source: Siemens/Siemens

1. Soft starter
What is the meaning of the Siemens 3RW soft starter order number?
  2. Equipment type (series classification): 3RW30, 3RW40, 3RW44

3. Size/Rated Operating Current IE (40°C, Class 10):

The rated working current range of 3RW30 is 3.6A-106A, the rated working current range of 3RW40 is 12.5A-432A, and the rated working current range of 3RW44 is 29-1214A

4. Link terminal type: This terminal type generally refers to the wiring of the control loop.

3RW30 and 3RW402-404 1 represents the screw terminal and 2 represents the cage card terminal. Among them, the wiring of the main circuit of S00 and S0 specifications is the same as that of the control circuit, and the main circuit of S2 and above specifications are all screw wiring.

3RW405-407 2 represents the cage card terminal, 6 represents the screw terminal, and its main circuit wiring is copper bar wiring.

3RW442 1 represents the screw terminal, 2 represents the cage card terminal, and its main circuit is screw wiring.

3RW443-446 2 represents the cage card terminal, 6 represents the screw terminal, and its main circuit is copper bar wiring.

5. Soft starter function: BB is a built-in bypass contactor, two-phase thyristor control (3RW30 and 3RW40 are optional). BT is a built-in bypass contactor, two-phase thyristor control, integrated motor overheating protection (can detect the embedded thermistor on the motor, only the control voltage is AC/DC 24V, 3RW402-404 can choose this function). BC is a built-in bypass contactor, three-phase thyristor control (3RW44 optional).

6. Rated control power supply voltage Us: refers to the voltage that controls the soft starter (power supply voltage)

7. Rated operating voltage UE: Refers to the main circuit voltage

3RW30 is 200V-480V (order number 4)

The 3RW402-404 is available in 200V-480V (order no. 4) and 400V-600V (order no. 5).

3RW405-407 is available in 200V-460V (order no. 4) and 400V-600V (order no. 5).

The 3RW44 is available in 200V-460V (order no. 4), 400V-600V (order no. 5) and 400-690V (order no. 6).

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