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SGQ2 Series intelligent dual power automatic swithes is made up of two units in 3 pole and 4 pole of MCCB and (auxiliary,alarm contact),the mechanical interlocking transmission,intelligent controller and other components.
Product details

Products feature and character

SGQ2 Series intelligent dual power automatic swithes is made up of two units in 3 pole and 4 pole of MCCB and (auxiliary,alarm contact),the mechanical interlocking transmission,intelligent controller and other components. It has the integral style and split type with two kinds mechanism. Integral controller is equipped with a base and executing agencies ; Split type is intelligent controll er installe d in the panem User take the base by implementing agencies to install into the cabinet controller with about 2m cables.

□ Reliable mechanical interlock between the two circuit breakers and electrical interlocking device. eliminate the two devices closing completely at the same time.

□ SCM intelligent controller used to control the core hardware is simple and powerful, expansion of convenience, high reliability.

□ It has a short circuit, over load protection functions, over voltage,under voltage, loss phase automatic transfer function and intelligent alarm function.

□ Automatic switching external parameters can be set free.

□ Operation of Intelligent motor protection

□ The control circuit devices with fire, fire control cente r to a control signal into intell igent controller. two sets circuit breaker will enter a stating of breaking .

□ There is a computer network interface for achieving remote control four remote telemetry functions

The feature and character of SGQ2 series ATS

□ SGQ2 series ( terminal type) (economic type) - Automatic Transfer Switches, is used to the terminals to the dual electrical power switching devices;

□ Small in volume,simple in constitution;

□ There is provide 2P,3P,4P.Easy to operation and long to use;

□ Transfer switch driving by single motor, a smooth, no noise, the impact is small;

□ With mechanical interlocking and electrical interlock, change over credibility, could be supply by manual or automatic operation;

□ Common, spare circuit breaker rated current can be different;

□ A.T.S contain connector for users wiring can rdflect Breaker (open or closed) state;

□ A.T.S panel show various instructions: separations instruction manual, automatic and wiring diagram and so on.

Model and Meaning


M,M1 series ATS overall and installation dimensions


M,M1 series ATS wiring diagram


M1 series Fire fight and Start Generator Connection

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Use of Operates and supports

□ Whether main power or backup power with voltage or not, all can be by manual mode ope rated.Under manual,put the auto- manual button to manual position, pull the handle by clockwise to end,Backup power implementation circuit breaker Qn i s OFF, implementation of MAIN power supply circuit breaker Qn ONg; When pull handle counterclockwise to the end, the implementation of Backup power source Qr is ON,implementation of MAIN power supply circuit breaker Qn is OFF;

□ Set the auto position, if the MAIN power is normally,ATS will transfer to MAIN power working. The main power indiacation will bright on panel;If the main power is unusually,ATS will transfer to Backup Power working.The Backup indication will be bright on the panel.

□ ATS has 1A of two units fuses and a elec tric connector, fuse as short-circuit protection in automatic controller.Electric connecto as dry contact in In dication light to panel of controller box,voltage of 220V AC, l50mA , the detail please reference to instruction.

Fault Analysis and Removal

When ATS under automatic control state,the power condition was changed,but the operation mechanism no action. Such as MCB can't closed-transition or open - transition then should be checked:

1.whether the power grid are failured;

2.whether the wiring shedding;

3.the fuse itself whether burning. If the front point of one circuit breaker with ele ctricity, and th e connection are botht wiring well, fuses are intact, but yet can not closed-transition or open-transition.You should be asked to professionals or contact manufactory.

Notice to users in orders

□ When User place the order need to notice the identifying device models, specifications,dispensed breaker models, specifications, pole number. Such as : Automatic Transfer Switch device, Self-input and self-recover type, rated current of 50 A,4 pole, which is written SGQ2-63L/4P (50A).

□ For users special requirements, please contact with factories and to explain well in orders indicate.

installation and dimension

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Working principle

When common source is normal, the functional key is at position "auto", reserve breaker is open and common breaker is closed to protect common source for connecting with load, the common power voltage indicator is light.When the common source failures (the voltage is lower than 60% of rated voltage), the common source will transfer to reserve source automatically, the reserved source voltage indicator is ON, the reserved source working indicator is ON. After removing the failure of the common source,this swi tch will transfer to the common source automatically again.

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Automatic Transfer Switch







No.29, Tushanba Road, Qianjiang Economic Development Area,Yuhang, Hangzhou, China