Siemens 72 A Soft Starter 3RW40 Series, IP00, 37 kW, 200 → 480 V ac
- RS Stock No. 420-524
- Mfr. Part No. 3RW4038-1BB14
- Manufacturer Siemens
Sirius 3RW40
May be integrated into a motor control system using other Sirius control gear products, e.g. 3 pole circuit breakers from the 3RV10 range (see Control Gear section)
Two phase control, plus soft starting and stopping of three phase asynchronous motors
Low power loss
Adjustable start-up voltage between 40 to 100% of working voltage
Integrated bypass contacts
DIN rail mounting
Compact design and dimensions
Status indication
Solid-state motor overload and intrinsic device protection
Adjustable current limiting
Optional thermistor motor protection (up to size S3)
Integrated remote reset (up to size S3)
Integrated 'self-hold' and 'end of start-up' auxiliary contacts. The self-hold contact is used for interlocking when controlled by a means of a simple 'on-off' pushbutton set up. The 'end of start up' signal may be used to operate other pieces of plant, such as a pump
Ideal replacement for DOL and Star-Delta starters
Note
Depth dimension quoted is overall depth for each unit
| Attribute | Value |
|---|---|
| Phase | 3 |
| Supply Voltage | 200 → 480 V ac |
| Current Rating | 72 A |
| Voltage Rating | 480 V ac |
| Control Voltage | 110 → 230 V ac/dc |
| Power Rating | 37 kW |
| IP Rating | IP00 |
| Overall Length | 170mm |
| Overall Width | 55mm |
| Overall Depth | 170mm |
| Minimum Operating Temperature | -25°C |
| Maximum Operating Temperature | +60°C |
| Series | 3RW40 |
