Linear installation

HB series straight and right angled star delta conversion contactor right angled installation






Typical curve diagram of current and torque during starting of star delta contactor

1. The starting current of a star connection is approximately 1.8-2.6 times the rated current of the motor.
2. The starting torque of the star connection is 1/3 of the direct starting torque of the triangle, which is 50% of the rated torque.
3. When the motor starts, it is connected in a star shape, and during normal operation, it is connected in a triangle shape. When starting, when the speed reaches 80% of the rated speed, the starter switches from a star connection to a delta connection.
4. The rated current for starting the HB series linear and right angled star delta conversion contactors is the rated current value when connected in a delta configuration, and the maximum controlled motor power is the controlled power when connected in a delta configuration.
5. The load when starting the motor with the Star Triangle starter belongs to the AC3 usage category.
6. The Star Triangle Starter is only suitable for three-phase motors with six stator terminals connected.
7. The Star Triangle Starter is used for starting motors without load or starting motors with small initial torque and gradually increasing torque.

Normal working conditions and installation conditions
1. The ambient air temperature ranges from -5 ℃ to 40 ℃, with an average value not exceeding+35 ℃ within 24 hours
2. Altitude: not exceeding 2000m, capacity can be reduced to 3000m.
3. Atmospheric conditions: At+40 ℃, the relative humidity of the atmosphere does not exceed 50%. At lower temperatures, there can be higher relative humidity. The monthly average lowest temperature of the wettest month does not exceed+25 ℃, and the monthly average maximum relative humidity of that month does not exceed 90%, taking into account the condensation of the product due to temperature changes.
4. Pollution level: Level 3
5. Installation category: Level III
6. Installation conditions: The inclination angle between the installation surface and the person perpendicular to it shall not exceed ± 5 °
7. Shock out: The product is installed and used in a location without significant shaking, impulse, or vibration.