Product Overview
Technical Summary
| Parameter | Value |
|---|---|
| Rated current at 40 °C | 38 A |
| Rated motor power at 400 V | 18.5 kW |
| Rated operating voltage | 200 … 480 V |
| Operating frequency | 50 … 60 Hz |
| Control supply voltage | 24 V AC/DC |
| Control supply voltage type | AC/DC |
| Device size | S0 |
| Mounting method | screw and snap-on mounting |
| Connection type | screw-type terminals |
| Front protection class | IP20 |
Key Features
- Rated current: 38 A at 40 °C; 34 A at 50 °C and 31 A at 60 °C.
- Motor power: 18.5 kW at 400 V in the standard circuit at 40 °C; 11 kW at 230 V.
- Operating voltage: 200 … 480 V rated operating voltage in the standard circuit, with -15 % relative negative tolerance and 10 % relative positive tolerance.
- Protection and control functions: Has intrinsic device protection, motor overload protection, external reset and adjustable current limitation. Evaluation of thermistor motor protection is No.
- Control supply: AC/DC control supply with 24 V rated control supply voltage at AC and DC, at 50 Hz and 60 Hz AC.
- Installation and connections: S0 device with screw and snap-on mounting, 45 mm width, 125 mm height, 155 mm depth, and screw-type terminals for the main, auxiliary and control circuits.
Frequently Asked Questions
1. What rated current does the 3RW4028-1BB04 have?
It has 38 A rated current at 40 °C, 34 A at 50 °C and 31 A at 60 °C.
2. What motor power is supported at 400 V?
The rated motor power is 18.5 kW at 400 V in the standard circuit at 40 °C.
3. What supply voltage does the control circuit use?
The control supply is AC/DC, with 24 V rated control supply voltage at AC and DC.
4. How is the soft starter mounted and connected?
It uses screw and snap-on mounting and screw-type terminals for the main, auxiliary and control circuits.
