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Home > Passive Components > Contactors > Star Delta Starter

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25A Star Delta Starter, 11kW/ 18.5kW, 220V/ 380V AC

$110.39

25A starting current star delta starter for 3 phase induction motor circuit control, economic price, 11kW/ 18.5kW power, work

SKU: CHN-STAR-25

Free Shipping Worldwide

Delivery date: 6-12 days

Overview
Documents

Low price 25A 15Hp/ 25Hp star delta 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 reverse forward contactors.

Star Delta Starter Specification

Model: CHN-QJX2-25
Rated Operational Current (AC-3): 25A
Coil Rated Voltage: 220V AC, 380V AC (Optional)
Contact Form: 3P+NO or 3P+NC (Optional)
Power of Controllable 3-phase Squirrel-cage Motor (AC-3): 220V, 11kW; 380V, 18.5kW
Conventional Heating Current: 40A
Rated Insulation Voltage: 690V
Electric Life: 1200 times/h
Mechanical Life: 3600 times/h
Matching Fusing Model: RT16-32
Average Power Consumption (20℃) @ 50Hz: Pick-up 110VA; Holding 11A
Rail Size: 35mm
Ambient Temperature: -5℃~+40℃
Altitude: ≤2000m
Class of Pollution: Class 3
Installation Category: Ⅲ
Dimension (L*W*H): 124mm*174mm*164mm
Weight: 1.6kg

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: Working principle of star delta starter

For a cage-type three-phase asynchronous motor whose stator windings are connected in a delta during normal operation, if the stator windings are connected in a star shape at startup, and then connected in a delta shape after starting, the starting current can be reduced and the impact of the motor on the power grid can be reduced. Such a start-up method is called a star-delta decompression start, or Y/△ start for short. The star-delta starter is to change the wiring method of the stator winding of the three-phase asynchronous motor, so that the motor is connected in a star connection when starting, and then connected in a delta connection after the start, so as to achieve the purpose of decompression start.