High performance 60Hp/ 107Hp star delta connection starter consists of 3 contactors and an air delay head. Left contactor is connected to main circuit inlet and outlet and the main contactor of the thermal overload relay. The others are forward reverse contactors. Perfect for circuit control of 3 phase induction motor.

Star Delta Starter Specification

• Model: RDDLZ-QJX2-95
• Rated Operational Current (AC-3): 95A
• Coil Rated Voltage: 220V AC, 380V AC (Optional)
• Contact Form: 3P
• Power of Controllable 3-phase Squirrel-cage Motor (AC-3): 220V, 45kW; 380V, 80kW
• Conventional Heating Current: 110A
• Rated Insulation Voltage: 690V
• Electric Life: 600 times/h
• Mechanical Life: 3600 times/h
• Matching Fusing Model: RT16-125
• Average Power Consumption (20℃) @ 50Hz: Pick-up 230VA; Holding 32A
• Rail Size: 75mm
• Ambient Temperature: -5℃~+40℃
• Altitude: ≤2000m
• Class of Pollution: Class 3
• Installation Category: Ⅲ
• Dimension (L*W*H): 143mm*310mm*196mm
• Weight: 5.2kg

Air Delay Head Specification

• Rated Current: 10A
• Delay Time: Power Off Time Delay 0.1~30s
• Dimension (L*W*H): 50mm*45mm*60mm
• Auxiliary Contact: 1NO+1NC

Dimension (Unit: mm)

Wiring Diagram

Tips: Precautions for installation of star delta starter

1. The wiring of the star delta starter should be correct. The stator winding of the motor should be connected in delta when it is working normally.
2. The manually operated star-delta starter should be switched when the motor speed is close to the running speed; the automatically switched starter should adjust the delay device correctly according to the motor load requirements.
3. The contact pressure of the starter should comply with the provisions of the product technical documents, and the operation should be flexible.
4. The starter should be installed vertically, and the installation must be firm. The installation location should be convenient for operation and maintenance.
5. The newly installed oil-immersed star delta starter should be filled with qualified insulating oil. Before filling with oil, the inside of the starter and the oil tank should be cleaned, and the oil tank should be dry and free of moisture. The coil insulation should be good, and the insulation resistance should be measured with a 500v megohmmeter, which should not be less than 0.5M9, and the oil level should not be lower than the calibrated oil level line.
6. The starter shell must be grounded reliably (connected to zero).
7. The thermal relay is set correctly according to the controlled motor.
8. After the installation is completed, a test must be carried out to check whether the loss of voltage tripping is good.
9. After running with load, check again whether the starter control cabinet has the above sound and vibration, whether there is a burning smell, whether the instrument indication is correct, whether the contacts such as AC contactors, relays and the iron core suction table are in good condition. Use a clamp-type ammeter to test whether the running current is normal. After 24 hours of normal operation, there is no problem before it can be officially put into use.