Product Description
Key Features
- Rated current and power: Rated current: 72 A at 40 °C. Rated power: 37 kW at 400 V in the standard circuit at 40 °C.
- Operating voltage and frequency: Operating voltage: 200 … 480 V in the standard circuit. Rated operating frequency: 50 … 60 Hz.
- Control supply: Control supply voltage: 110 … 230 V AC at 50 Hz or 60 Hz, and 110 … 230 V DC.
- Protection and control functions: Has an integrated bypass contact system, thyristors, intrinsic device protection, motor overload protection, external reset, and adjustable current limitation. Thermistor motor protection evaluation and inside-delta circuit are not included.
- Connections and mounting: Screw-type terminals are provided for the main, auxiliary, and control circuits. Fastening: screw and snap-on mounting. Size: S2; width 55 mm, height 160 mm, depth 170 mm.
- Lifecycle and protection rating: Product lifecycle: Active Product. Front protection class: IP20 according to IEC 60529.
Technical Summary
| Product | SIRIUS soft starter S2 72 A, 37 kW/400 V, 40 °C 200-480 V AC, 110-230 V AC/DC Screw terminals |
|---|---|
| Rated current at 40 °C | 72 A |
| Rated power at 400 V | 37 kW |
| Operating voltage | 200 … 480 V |
| Rated operating frequency | 50 … 60 Hz |
| Control supply voltage | 110 … 230 V AC/DC |
| Main current circuit connection | Screw-type terminals |
| Fastening method | Screw and snap-on mounting |
| Front protection class | IP20 according to IEC 60529 |
| Product lifecycle | Active Product |
Frequently Asked Questions
What rated current does Siemens 3RW4038-1BB14 provide?
It has a rated current of 72 A at 40 °C, 62 A at 50 °C, and 60 A at 60 °C.
What motor power is specified at 400 V?
The rated power is 37 kW at 400 V in the standard circuit at 40 °C.
What connections does this soft starter use?
It uses screw-type terminals for the main current circuit and for the auxiliary and control circuits.
How is Siemens 3RW4038-1BB14 mounted?
Fastening is by screw and snap-on mounting. The device is size S2 and measures 55 mm wide, 160 mm high, and 170 mm deep.
Which functions are not included in this configuration?
It is without thermistor motor protection evaluation, inside-delta circuit, and motor brake output.
