1. Introduction
Three-phase four-wireSelf-resettable over/undervoltage protectorIt is an upgrade from the ordinary type of product, product technical characteristics: low power consumption, long life, precise control, lack of phase protection, lack of zero line protection, maximum short-circuit limit current of 3000A, software control of humanization, and clear indication with Led light, the product is powered on for the first time under normal conditions of power supply closing time of 5 seconds, when the line occurs undervoltage, lack of phase and other faults, when the power supply turns normal, the closing time is 20 seconds, this design saves too much time to wait when the power grid is out of power.
The three-phase four-wireSelf-resettable over/undervoltage protectorIt has the functions of phase loss, zero loss, overvoltage and undervoltage protection, and is often used in three-phase four-wire distribution lines and photovoltaic power generation combiner boxes.
Second, the main technical parameters
1. Rated current: 32A, 40A, 50A, 63A, 80A
2. Working voltage: AC230V, 50Hz (phase line to neutral line working mode)
3. Overvoltage protection value: AC270V ±5V (phase to zero)
4. Undervoltage protection value: AC170V ±5V (phase to zero)
5. First power-on closing time: 5 seconds
6. Reset time after failure: 20 seconds
7. Action time: 0.1 seconds
8. The highest is possiblewithstandAC450V overvoltage(phase to zero)。
3. Implementation standards
JGJ242-2011 Code for Electrical Design of Residential Buildings
JGJ/T16-2008
GJBT-672 Standard Atlas of Electrical Design and Construction of Residential Buildings
GB/T68895.10-2001
Meets the safety standards for Class III electrical appliances
JB/T12762-2015 《Self-resettable over/undervoltage protector（OUPA)》
Fourth, the appearance of the size
