Maintenace Of Surge Protective Decives: 70A, 140A, 210A And 280A Afqm Ip54 - Circutor AFQm IP54 Serie Manual De Instrucciones

10.2.- MAINTENACE OF SURGE PROTECTIVE DECIVES: 70A, 140A, 210A AND 280A AFQm IP54

The device has removable surge protective that are accessible from the front. They feature a green
indicator to signal the correct operation of the protective.
These devices are protected by NH00 fuses.
The purpose of these devices is to protect against transient overvoltage that may appear in the power
supply, mainly due to weather disturbances.
At least once a year, and after adverse weather events (storms, lightning strikes, etc.), the indicator
must be verified to be green.
If it needs replacing, the indicator will change to red. In this case, the condition of the associated pro-
tective fuse must also be checked. The NH00 fuses include a status indicator that is visible when the
front cover is removed.
It is important to always replace surge protection and fuses with devices of the same type
The surge protection are of the "plug-in cartridge" type, and can be removed by simply pulling from the
outside, without using any tools. To replace the fuses, the NH fuse puller must be used.
164
Figure 74: Surge voltage protection.
If any work has to be done inside the connection area, the device must be discon-
nected from the power supply.
Table 36: Description Surge protection and Fuses.
Surge voltage protection
Fuse
Protectores de sobretensión
Surge voltage protection
Description
Cirprotec PSC-12,5/400
NH00 100A gG/gL 80kA 690V~
AFQm IP54
Table 36.
Instruction Manual