Product Overview
Technical Summary
| Parameter | Value |
|---|---|
| Rated current at 40 °C | 32 A |
| Rated power at 500 V | 18.5 kW |
| Operating voltage | 400 … 600 V |
| Control supply | 110 … 230 V AC/DC |
| Operating frequency | 50 … 60 Hz |
| Main current connection | Screw-type terminals |
| Auxiliary and control connection | Screw-type terminals |
| Mounting | Screw and snap-on mounting |
| Front protection | IP20 |
| Size | S0 |
| Ambient temperature during operation | -25 … +60 °C |
Applications
- Motor starting control: The soft starter provides motor starting control with adjustable current limitation.
- Motor overload protection: The device provides motor overload protection.
Key Features
- Rated current and power: 32 A rated current at 40 °C; 18.5 kW at 500 V in the standard circuit at 40 °C.
- Soft-start functions: Has an integrated bypass contact system, thyristors, intrinsic device protection, motor overload protection, external reset, and adjustable current limitation.
- Operating and control supply: Operating voltage: 400 … 600 V. Control supply: 110 … 230 V AC/DC.
- Screw terminals: Main current, auxiliary, and control circuits use screw-type terminals.
- S0 mechanical design: S0 size; 45 mm width, 125 mm height, 155 mm depth; screw and snap-on mounting; front protection class IP20.
Frequently Asked Questions
1. What rated current does the Siemens 3RW4027-1BB15 provide?
It has a 32 A rated current at 40 °C, 29 A at 50 °C, and 26 A at 60 °C.
2. What operating voltage and control supply does this soft starter use?
Operating voltage is 400 … 600 V. The control supply is 110 … 230 V AC/DC.
3. How is the 3RW4027-1BB15 mounted and connected?
It uses screw and snap-on mounting. The main current, auxiliary, and control circuits use screw-type terminals.
