Key Features
- Soft starter designation: SIRIUS soft starter, product designation: Soft starter.
- Electrical ratings: 63 A at 40 °C, 30 kW at 400 V, and 18.5 kW at 230 V.
- Control and supply voltages: Operating voltage: 200 … 480 V AC. Control supply voltage: 110 … 230 V AC/DC.
- Built-in functions: Integrated bypass contact system, thyristors, intrinsic device protection, motor overload protection, external reset, and adjustable current limitation.
- Connections and mounting: Screw-type terminals for the main current circuit and auxiliary and control circuit, with screw and snap-on mounting.
- Size and enclosure data: Size S2, width 55 mm, height 160 mm, depth 170 mm, and IP20 front protection.
Technical Summary
| Product designation | Soft starter |
|---|---|
| Product brand name | SIRIUS |
| Size | S2 |
| Operational current at 40 °C | 63 A |
| Power at 400 V | 30 kW |
| Operating voltage | 200 … 480 V |
| Control supply voltage | 110 … 230 V AC/DC |
| Integrated bypass contact system | Yes |
| Motor overload protection | Yes |
| Adjustable current limitation | Yes |
| Main current circuit connection | screw-type terminals |
Applications
- Motor soft starting: Soft starting for a motor circuit with adjustable current limitation.
- Motor overload protection: Motor overload protection with external reset capability.
Frequently Asked Questions
What is Siemens 3RW4037-1BB14?
It is a SIRIUS soft starter, size S2.
What are the main electrical ratings of 3RW4037-1BB14?
The rated operational current is 63 A at 40 °C, and the rated power is 30 kW at 400 V.
What supply and control voltages does 3RW4037-1BB14 use?
Operating voltage is 200 … 480 V AC, and the control supply voltage is 110 … 230 V AC/DC.
How is 3RW4037-1BB14 connected and mounted?
It uses screw-type terminals for the main current circuit and the auxiliary and control circuit, with screw and snap-on mounting.
