Replacement Of Surge Protection Devices (Spd) - Delta M125HV 113 Operation And Installation Manual

5.2 Replacement of Surge Protection Devices (SPD)

M125HV_113 have the surge protection device (SPD) at both AC and DC side
as shown in Figure 5-4. Table 5-1 summarizes the specifications of AC and
DC SPD.
Description
Working voltage:
Working Current (8/20us)
Rated Current (IMAX – 8/20us)
Operating Ambient Temperature Range
Manufacturer:
Surge protection devices (SPD) are designed to protect sensitive circuit
elements of the inverter from damage caused by lightning and other electrical
transients/surges, as such they are sacrificial components and periodically,
may need replacement.
The SPDs are located in the inverter.
If a warning message "AC Surge" or "DC Surge" appears on APP and DSS,
follow the procedure below to replace the SPD.
Figure 5-4: AC and DC SPD modules
Table 5-1: SPD Specifications
AC Module
DC Module
Sichuan Zhongguang Lightning
Protection Technologies Co., Ltd
59
Value
1190VRMS
1800VDC
10kA
20kA
-40°C to 85°C
Maintenance