Key Features
- Soft starter: SIRIUS soft starter for motor starting and control.
- Integrated bypass contact system: Integrated bypass contact system: Yes.
- Rated current and power: Values at 400 V, 40 °C standard: 36 A, 18.5 kW.
- Control supply and terminals: Control supply voltage: 230 V AC. Auxiliary and control circuit: spring-loaded terminals.
- Inside-delta performance: Inside-delta: 62 A, 30 kW.
Technical Summary
| Product designation | Soft starter |
|---|---|
| Product brand name | SIRIUS |
| Product model | 3RW4423-3BC44 |
| Lifecycle | Start of final year of support |
| Rated current at 40 °C | 36 A |
| Inside-delta current at 40 °C | 62 A |
| Power at 400 V, 40 °C standard | 18.5 kW |
| Power at 400 V, 40 °C inside-delta | 30 kW |
| Operating voltage | 200 … 460 V |
| Control supply voltage | 230 V AC |
| Control circuit terminals | spring-loaded terminals |
| Main current circuit terminals | box terminal |
| Protection class IP on the front according to IEC 60529 | IP20 |
| Fastening method | screw fixing |
| Mounting position | with vertical mounting surface +/-90° rotatable, with vertical mounting surface +/- 22.5° tiltable to the front and back |
| Degree of pollution | 3, acc. to IEC 60947-4-2 |
Applications
- Motor overload protection: Motor overload protection for a connected motor.
- Inside-delta motor circuit: Inside-delta circuit use for a motor connection.
- Motor brake output connection: Use of the motor brake output for a motor brake circuit.
Frequently Asked Questions
What is Siemens 3RW4423-3BC44?
It is a SIRIUS soft starter.
What are the main electrical ratings of 3RW4423-3BC44?
Values at 400 V, 40 °C standard are 36 A and 18.5 kW. Inside-delta values are 62 A and 30 kW.
What control supply does 3RW4423-3BC44 use?
The control supply voltage is 230 V AC.
What terminals and mounting details does 3RW4423-3BC44 have?
It uses a box terminal for the main current circuit and spring-loaded terminals for the auxiliary and control circuit. Fastening method is screw fixing.
Is 3RW4423-3BC44 a current product?
It is listed as a phased-out product with start of final year of support. Preferred successor type: 3RW5517-3HA14.
