Siemens 3RA2444-8XF32-1AL2 Star-Delta Contactor Assembly - 75kW
Siemens 3RA2444-8XF32-1AL2 Star-Delta Contactor Assembly for motor starting.
The Siemens 3RA2444-8XF32-1AL2 is a robust contactor assembly designed for star-delta (wye-delta) starting applications. It is rated for AC-3 duty with a power capacity of 75 kW at 400 V, operating on a 230 V AC, 50/60 Hz supply. This Size S3 assembly features screw terminals for electrical connections and includes both electrical and mechanical interlocks for safe operation. It is configured with 3 normally open (NO) and 3 normally closed (NC) contacts.
This contactor assembly is ideal for controlling three-phase induction motors in applications requiring smooth, reduced-voltage starting. Industries such as manufacturing, material handling, and water/wastewater treatment commonly utilize this type of equipment for pump, fan, and conveyor motor control. Its reliable performance ensures extended motor life and reduced mechanical stress.
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| Type | Star-Delta Contactor Assembly |
| Duty | AC-3 |
| Power | 75 kW / 400 V |
| Control Voltage | 230 V AC, 50/60 Hz |
| Size | S3 |
| Terminals | Screw |
| Interlock | Electrical & Mechanical |
| Contacts | 3 NO + 3 NC |