Doual Power Switch Double Power Supply Switch with Molded Case

A mini dual-power supply generally refers to a mini dual-power automatic transfer switch. It is controlled by a microprocessor and is used for the startup and switching between the utility power sources in the power grid system or between the utility power and the generator power. It can ensure continuous power supply. The following is its basic information:
Working Principle
When there is a sudden fault or power outage in the normal power supply, the dual-power transfer switch can automatically switch to the backup power supply (under light loads, the backup power can also be provided by a generator), enabling the equipment to operate normally.
Product Classification
It is mainly divided into two types: PC - grade dual-power supply (integral type) and CB - grade dual-power supply (dual-circuit breaker type). The PC - grade does not have a protection function but has high withstand and making capacities. The CB - grade is equipped with an over - current release and has a selective protection function.
Product Features
Design and Performance
The overall design is compact and robust. Part of the control section is made of a metal shell, and the switch housing components are made of glass fiber - reinforced unsaturated polyester resin, which has strong dielectric properties, protection capabilities, and operational safety.
Functional Features
It has a fast switching speed, low failure rate, convenient maintenance, and reliable performance. It can achieve automatic, remote electric, and emergency manual control. Functions such as fire protection and power generation can be optionally configured.
Application Scenarios
It is suitable for the automatic transfer between the main power supply and the backup power supply in the power supply system or the automatic transfer and safety isolation between two load devices. It is widely used in power generation, power supply, and enterprise power systems to protect electrical equipment such as generators and transformers. It is also commonly used in elevators, fire protection, monitoring, lighting, and other fields.
Technical Parameters
Power Supply Specifications
It is suitable for a three - phase four - wire (or single - phase single - wire) dual - power supply grid with an alternating current of 50 Hz, a rated operating voltage of 400 V, and a rated operating current of up to 63 A.
Product Specifications
The product frame size is 63. The current specifications include 10A, 16A, 20A, 25A, 32A, 40A, 50A, and 63A. The number of poles includes 2 - pole, 3 - pole, and 4 - pole.
Service Advantages
It includes good reputation, professional service, a scientific price system, a professional team to quickly solve problems, and efficient service to assist customers.
Operation and Maintenance
Manual Operation
Regardless of whether there is voltage in the normal power supply or the backup power supply, the manual/automatic switch can be set to the manual position for operation. Push the handle clockwise to the end, the circuit breaker of the normal power supply will close, and the circuit breaker of the backup power supply will open. Push it counter - clockwise, and the situation will be the opposite.
Automatic Operation
Set the manual - automatic button to the automatic position. When the normal power supply is normal, the switch will automatically switch to close the circuit breaker of the normal power supply. When the normal power supply is abnormal, it will switch to close the circuit breaker of the backup power supply.
Status Check
Judge the power supply status through the indicator lights on the controller panel. If the indicator light is not on, it indicates that there is a fault in the input working power supply, and it needs to be checked and repaired before being put into operation again.