PV71L22-21S L/C

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PV71L22-21S L/C is a low-voltage, low-current, low-power electronic transfer switch used for the switching of permanent Magnet (PM) motors and generators. PV71L22-21S L/C come with two separate 120VAC / adjustable voltage output isolated from each other and two separate neutral / ground buses.

When operated, the device will electrically transfer control of the voltage output from one bus to the other. The PV71L22-21S L/C is used as a temporary backup power supply for critical equipment, or to switch the power load from one source to another in order to meet the required load. It can be used for a variety of applications that require a low-voltage, low-current, versatile transfer switch.

The main application field of the PV71L22-21S L/C is within the industrial enterprise power system and photovoltaic systems. In industrial system, it initially appears in green and low-carbon building projects. It is mainly used to transfer the power load from a generator/solar panel to a normal alternating current (AC) power system when needed.

The Working Principle of the PV71L22-21S L/C is mainly based on its dual-phase and set voltage output switch. The relay provided with the unit allows for switching in order to transfer service from one bus to the other. It also features a phase locked loop (PLL) control mechanism that ensures the output voltage is stable, and a triac provide for current limit protection. The device also has a secondary output port that can be connected to any monitor or controller device for additional flexibility.

When current exceeds the rating on the unit, the PV71L22-21S L/C will trip immediately and disconnects it from the main AC power supply. Other features of the device include its low energy consumption, wide temperature range, wide input voltage range of 85-265VAC, 3-phase input and output and easy installation.

The PV71L22-21S L/C can be used to provide temporary backup operations for valves, electric motors, industrial machines, and data processing and control applications. It is also widely applied to solar energy systems, electric vehicle systems and other renewable energy systems. Its voltage regulation range is +/- 10%, providing highly versatile and reliable control for demanding applications.

The low-voltage, low-current, energy-saving, high-efficiency characteristics of PV71L22-21S L/C have made it one of the most popular electronic switch products in the field of industrial electrical control. The device\'s plug and play design and intuitive interface make it easy to integrate and install in any system. It is a cost-effective solution for high-efficiency, low-power applications and provides a safe and reliable power transfer.

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