Product Description
Key Features
- 400 V performance: At 400 V and 40 °C, rated current is 29 A with 15 kW in standard circuit and 22 kW in inside-delta circuit.
- Inside-delta capacity: For 3-phase motors in inside-delta circuit, rated current is 50 A at 40 °C.
- Motor protection: Has intrinsic device protection, motor overload protection, thermistor motor protection evaluation, external reset, and adjustable current limitation.
- Control supply: AC control supply is 230 V at 50 Hz or 60 Hz, with Display version for fault signal.
- Connections and mounting: Has a 3-pole main current circuit, box terminals for the main current circuit, spring-loaded terminals for auxiliary and control circuits, and screw fixing.
- Lifecycle status: The collected product data identifies this item as a phased-out product and gives the lifecycle status as start of final year of support.
Technical Summary
| Product designation | Soft starter |
|---|---|
| Rated current at 400 V and 40 °C | 29 A |
| Power at 400 V, standard circuit, 40 °C | 15 kW |
| Power at 400 V, inside-delta circuit, 40 °C | 22 kW |
| Inside-delta rated current at 40 °C | 50 A |
| Operating voltage | 200 … 460 V |
| Control supply | 230 V AC at 50 Hz or 60 Hz |
| Main current circuit connection | Box terminal |
| Auxiliary and control circuit connection | Spring-loaded terminals |
| Mounting position | Vertical mounting surface +/-90° rotatable; +/-22.5° tiltable to the front and back |
| Lifecycle status | Start of final year of support |
Frequently Asked Questions
What is the rated current of Siemens 3RW4422-3BC44 at 400 V and 40 °C?
The rated current is 29 A in standard circuit and 50 A for 3-phase motors in inside-delta circuit.
What motor power does this soft starter support at 400 V?
It supports 15 kW in standard circuit and 22 kW in inside-delta circuit at 40 °C.
What control supply does the 3RW4422-3BC44 use?
It uses a 230 V AC control supply at 50 Hz or 60 Hz.
How is the unit mounted and connected?
It uses screw fixing, a 3-pole main current circuit, box terminals for the main current circuit, and spring-loaded terminals for auxiliary and control circuits.
