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Maintenance
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.
5.2 Replacement of Surge Protection Devices (SPD)
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.
Description
Working voltage:
Working Current (8/20us)
Rated Current (IMAX – 8/20us)
Operating Ambient Temperature Range
Manufacturer:
WARNING !
Figure 5-3: AC and DC SPD modules
AC Module
DC Module
Sichuan Zhongguang Lightning
Protection Technologies Co., Ltd
Table 5-1: SPD Specifications
72
Insulator plate
Value
895VRMS
1175VDC
10kA
20kA
-40°C to 85°C
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