External Protection Devices; Battery Line - Gtec Saturn Manual Del Usuario

E
XTERNAL PROTECTION DEVICES
FUSES / CIRCUIT BREAKERS
On the CPS input line, in a dedicated panel, a device to protect against overcurrents must be envisaged
This protection device can be created with gG fuses, as shown in the table, or with an equivalent circuit breaker. With a
separate power input, main line + bypass line, two protection devices are required, one for each line present.
* inside the CPS, on the bypass line, no maximum current protection is envisaged. This protection must be envisaged in the
system based on the I2t indications described in the "Protection against short circuits" paragraph
If the protection device upstream from the CPS interrupts the neutral conductor, it must also interrupt all the
phase conductors as the same time (four pole switch).

BATTERY LINE

A protection device against overcurrents and an isolating device must be envisaged on the CPS battery line.
The size/type of protection fuse must be chosen based on the capacity of the battery box installed, referring to
the table below.
Type of fuse
gl / gG NH
aR NH
For example: 150Ah-type batteries can use the following fuses: 250A type gl/gG or 315A type aR
Caution, it may be necessary to increase the battery fuses in the event of very short autonomy times.
Before opening the fuses/isolating switch present on the battery box, make sure that the CPS is off.
OUTPUT FUSES
Output protection devices (recommended values for selectivity)
Normal fuses (GI)
Normal switches (C-Curve)
Ultra-fast fuses (GF)
External AC protection devices
Mains input
250A
External DC protection devices
2
2.5 x the battery capacity in Ah
Separate bypass input *
Fuse size
the battery capacity in Ah
x
Ir (Rated current)/7
Ir (Rated current)/7
Ir (Rated current)/2
78
250A