Technical parameters
Model EPP40T
**** Continuous working voltage Uc 385VAC
SPD test category T2
Rated discharge current In 20kA
**Maximum discharge current Imax 40kA
Voltage protection level rise 1.8kV
Voltage protection level rise (In=5kA) 1.2kV
Applicable power grid 220V/380VAC (50Hz)
Dimension 74mm×88mm×74mm
With visual warning indicator, aging heat release and short circuit overcurrent release function, 35mm standard rail mounting

Site conditions before installation
1,There is a reliable grounding system, and the grounding resistance of the distribution cabinet's grounding pile (strip) is measured (SPD installation), and its resistance should meet the national standard.
2,Space should be left in the distribution cabinet for SPD installation.
Note: L is the fire wire, N is the zero wire, E is the ground wire.

Precautions after installation
1,Check if the air switch is turned off and carry out to make sure the SPD is in working condition.
2,Do not install in thunderstorm.

Maintenance
This product is installed in parallel in the line, and its operation should be checked regularly, especially after thunderstorms. The inspection is divided into appearance inspection and performance test.
Appearance inspection. Each lightning protection module has deterioration indication. When working normally: the indicator is green; after aging: the indicator goes out. the SPD should be replaced in time after aging.
Performance testing. According to the national lightning protection code, test at least once a year, and measure V1mA and IL≤20μA of L-PE and N-PE respectively with lightning protection element tester as qualified.

Company Information

Company Profile

Hunan Hertz-Ohm Engineering Group Co., Ltd. (referred to as Hunan Heou) is a comprehensive

Hunan Hertz-Ohm Engineering Group Co., Ltd. (referred to as Hunan Heou) is a comprehensive engineering consulting company established in Changsha in cooperation with Heilongjiang Hengdian Lightning Protection Engineering Co., Ltd. Group. The main purpose is to consolidate the original business content of Hengdian Lightning Protection Company to South China, and to increase and promote new engineering consulting and management business scope. The company's service areas involve electric power, mobile communication, wind power, solar energy, chemical petroleum, national defense and civil intelligent buildings, and industrial control fields.