Siemens SIRIUS 3RW4427-1BC44 Soft Starter - 93A, 45kW
Siemens SIRIUS 3RW4427-1BC44 Soft Starter for 3-phase motors.
The Siemens 3RW4427-1BC44 is a SIRIUS soft starter designed for smooth acceleration of three-phase motors. Under standard conditions at 400V and 40°C, it handles a current of 93A and a power of 45kW. When connected inside-delta, it can manage 161A and 90kW, offering flexibility for different motor configurations. The device operates on AC voltages ranging from 200-460V and features screw terminals for secure connections.
This soft starter is crucial for applications where high starting torques need to be managed, reducing mechanical stress on machinery and electrical stress on the power supply. It's commonly used in pump, fan, and conveyor systems to prevent sudden jolts and energy surges during startup.
As a veteran-owned surplus parts distributor, Stanlo Automation provides access to industrial components like the Siemens 3RW4427-1BC44. While this is a phased-out product, we can help you source it or its recommended successor, the 3RW5527-1HA14, ensuring your operational continuity.
| Rated Current (Standard) | 93A |
| Rated Power (Standard) | 45kW @ 400V |
| Rated Current (Inside-Delta) | 161A |
| Rated Power (Inside-Delta) | 90kW |
| Voltage Range | 200-460V AC |
| Terminals | Screw |