Product Overview
Technical Summary
| Product type | Soft starter |
|---|---|
| Standard-circuit current at 40 °C | 113 A |
| Inside-delta current at 40 °C | 196 A |
| Motor power at 400 V, standard circuit, 40 °C | 55 kW |
| Motor power at 400 V, inside-delta circuit, 40 °C | 110 kW |
| Operating voltage | 200 … 460 V AC |
| Control supply | 230 V AC at 50 Hz or 60 Hz |
| Main connection | Busbar connection |
| Auxiliary and control connection | Screw-type terminals |
| Protection on front | IP00; IP20 with box terminal/cover |
| Product lifecycle | Start of final year of support |
Key Features
113 A at 40 °C, 100 A at 50 °C and 88 A at 60 °C in standard circuit; inside-delta circuit values are 196 A, 173 A and 152 A respectively.
55 kW at 40 °C in standard circuit and 110 kW at 40 °C in inside-delta circuit.
Operating voltage: 200 … 460 V AC; control supply: 230 V AC at 50 Hz or 60 Hz. Main current circuit uses busbar connection; auxiliary and control circuits use screw-type terminals.
Has integrated bypass contact system, thyristors, intrinsic device protection, motor overload protection, thermistor motor protection evaluation, external reset and adjustable current limitation.
Screw fixing; width 170 mm, height 200 mm and depth 270 mm. Mounting position supports a vertical mounting surface with +/-90° rotation and +/-22.5° front or back tilt.
Product lifecycle: start of final year of support. The preferred successor type is 3RW5534-6HA14; successor family: SIRIUS 3RW5.
Frequently Asked Questions
What is the exact product type and model?
It is the Siemens SIRIUS 3RW4434-6BC44 soft starter.
What current does the soft starter support at 40 °C?
It has a rated operational current of 113 A in standard circuit and 196 A for 3-phase motors in inside-delta circuit at 40 °C.
What are the operating voltage and control supply?
Operating voltage is 200 … 460 V AC. The control supply is 230 V AC at 50 Hz or 60 Hz.
How is the unit connected and mounted?
The main current circuit uses busbar connection, while auxiliary and control circuits use screw-type terminals. Mounting uses screw fixing.
Can this line item be included in a project quotation?
Yes. Include the requested quantity, destination, schedule context and any additional BOM lines when submitting the project list.
