M42/36/28U series models have the surge protection device (SPD) at both AC
and DC side as shown in Figure 5-3. Table 5-1 summarizes the specifications
of AC and DC SPD.
5.2 Replacement of Surge Protection Devices (SPD)
Figure 5-3: AC and DC SPD modules
Table 5-1: SPD Specifications
Description Value
AC Module
Working voltage:
DC Module
Working Current (8/20us)
Operating Ambient Temperature Range
Rated Current (IMAX – 8/20us)
895VRMS
1175VDC
10kA
-40°C to 85°C
20kA
Sichuan Zhongguang Lightning
Protection Technologies Co., Ltd
Manufacturer:
If it's necessary to remove the insulator plate
of wiring box during Cabling or maintenance,
the insulator plate must be put back in to the
wiring box before re-install the cover, refer the
figure right.
Insulator plate
WARNING !
72
Maintenance
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