Product information
Overview
Key Features
- Rated operational current: 134 A at 40 °C, 117 A at 50 °C, and 100 A at 60 °C.
- Inside-delta current: 232 A at 40 °C, 203 A at 50 °C, and 173 A at 60 °C for 3-phase motors in inside-delta circuit.
- Motor power ratings: At 400 V: 75 kW in standard circuit and 132 kW in inside-delta circuit, both at 40 °C rated value.
- Control and protection functions: Has integrated bypass contact system, intrinsic device protection, motor overload protection, external reset, adjustable current limitation, and evaluation of thermistor motor protection.
- Connections and mounting: Uses busbar connection for the main current circuit and screw-type terminals for auxiliary and control circuits; fastening method is screw fixing.
Technical Summary
| Product designation | Soft starter |
|---|---|
| Rated operational current at 40 °C | 134 A |
| Operational current in inside-delta circuit at 40 °C | 232 A |
| Motor power at 400 V, standard circuit | 75 kW |
| Motor power at 400 V, inside-delta circuit | 132 kW |
| Operating voltage | 200 … 460 V |
| Operating frequency | 50 … 60 Hz |
| Control supply voltage | 230 V AC at 50 Hz and 60 Hz |
| Front protection class | IP00; IP20 with box terminal/cover |
Frequently Asked Questions
What is the rated current of Siemens 3RW4435-6BC44?
The rated operational current is 134 A at 40 °C, 117 A at 50 °C, and 100 A at 60 °C. In inside-delta circuit for 3-phase motors, it is 232 A at 40 °C, 203 A at 50 °C, and 173 A at 60 °C.
What voltage and control supply does this soft starter use?
The operating voltage is 200 … 460 V in standard circuit and inside-delta circuit. The control supply is 230 V AC at 50 Hz and 60 Hz.
How is the 3RW4435-6BC44 mounted and connected?
It uses screw fixing. The main current circuit uses a busbar connection, while the auxiliary and control circuits use screw-type terminals. Required spacing is 100 mm upwards, 5 mm at the side, and 75 mm downwards.
What is the protection class of this configuration?
The front protection class is IP00, or IP20 with box terminal/cover. Front touch protection is finger-safe for vertical contact from the front with box terminal/cover.
What is the lifecycle status of this product?
It is a phased-out product and is in the start of the final year of support.
