Products & Solutions

Place of Origin: China
Brand Name: Longsun
Model Number: DZ47-63
Minimum Order Quantity: 1 pc
Delivery Time: 15 working days
Payment Terms: L/C, T/T, Western Union, etc.



(CB Class) Terminal Type Dual Power Supply Automatic Transfer Switch


LTZQ1 series terminal type dual power automatic transfer switch is suitable for 50Hz/60Hz, rated working voltage 220V (2P), 380V (3P, 4P), rated current 6A-630 terminal type double circuit power supply system. Automatic conversion between common power supply and backup power supply can be completed to ensure the reliability of power supply. It is mainly used in high-rise buildings, shopping malls and other places such as fire pumps, smoke elimination fans, elevators, domestic water pumps, accident lighting, and distribution signs.





Normal working conditions

●Ambient air temperature: a. The upper limit value does not exceed +40°C; b. The lower limit value does not exceed -15°C; c. The average value within 24 hours does not exceed +35°C.

●Atmospheric conditions: a. When the ambient air temperature is +40°C, the relative humidity of the air does not exceed 50%, and when the lower temperature is +25°C, the maximum relative humidity is 90%; b. The average minimum temperature of the wettest month for
At +25°C, the maximum relative humidity is 90%; c. Condensation on the surface of the product due to temperature changes has been taken into account.

●Pollution level and installation category: Pollution level is 2,

●Installation category: category Ⅱ, Ⅲ.


Overall installation dimensions and wiring diagram (mm)



Model (end type) Number of poles (P) Dimensions (mm) Installation size (mm)
W L h W1 L1
TZ Q 1-63A 3、4 290 240 135 255 220
TZ Q 1-100A 3、4 320 240 140 285 220
TZ Q 1-250A 3、4 370 240 160 335 220
TZ Q 1-400A 3、4 525 330 190 465 300
TZ Q 1-630A 3、4 650 330 190 585 300



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