Salicru UPS SLC TWIN PRO series, User Manual

18

Model

Batteries

(U 

cell

 x Nº) = 

U 

nominal

 / U 

floating

Minimum features of two 

poles protection switch

Voltage

 DC (V)

Current (A)

SLC-4000-TWIN PRO

(12V x 20) =

240V / 275V

440

20

SLC-5000-TWIN PRO

25

SLC-6000-TWIN PRO

32

SLC-8000-TWIN PRO

40

SLC-10000-TWIN PRO

50

SLC-8000-TWIN/3 PRO

40

SLC-10000-TWIN/3 PRO

50

SLC-12000-TWIN/3 PRO

(12 V x 24) = 

288V / 330V

440

50

SLC-15000-TWIN/3 PRO

63

SLC-20000-TWIN/3 PRO

100

Table 2. 

Features of protection between the equipment and battery 

cabinet.

•  All standard UPSs have batteries in the same enclosure of 

the equipment , less those ones as B0 and B1. In the first 

ones, the battery protection is done by internal fuses and 

there is no access to the end-user.
Accumulator cabinet or modules have battery protection 

too, and in this case, they are duplicated. An internal ones 

through fuses with no access for the end-user and an addi-

tional ones by means of a two pole circuit breaker.

• 

IMPORTANT FOR SAFETY: In case of installing the 

batteries by yourself, the accumulators has to be pro-

vided with a two pole circuit breaker protection sized to the 

features stated in table 2.

• 

Before starting the connection between the bat-

tery module/s and the equipment, check that the 

equipment switch/es and the one in the battery cabinet 

are in "Off" position.

•  Connection terminals with the external batteries are in the 

same power block of the equipment, less in TWIN/3 PRO up 

to 10 kVA, which have an Anderson connector.

•  Connection of the UPS with the battery cabinet will be done by 

means of a supplied bundle cables, connecting, at first stage, 

one of the ends to the power block or Anderson connector of 

the UPS and then the other end to the power block or Anderson 

connector of the battery cabinet, by respecting the polarity 

stated in the labelling of the equipment and this manual, and 

colour of the cables (red for positive, black for negative, green-

yellow for earth).
Battery modules with Anderson connector there is no pos-

sibility to make a mistake in the polarity.
Table 3 states the battery connection type, which are avail-

able in the UPS and battery modules.

•  When it is supplied more than one battery unit for each 

equipment, the connection will always be done in parallel 

between them and the equipment. So it means, black cable 

from negative of the UPS to the first negative of the first bat-

tery module and from this last negative to the second module 

and so on. Proceed in the same way to connect the red posi-

tive cable and the green-yellow earth cable.

•  In parallel systems, the connection of each equipment with 

its external battery cabinet/s has to be done like if they were 
single units, completely separate from the rest ones.

• 

Each battery module is independent for each equip-

ment. It is strictly prohibited to connect two equip-

ments to one battery module.

Model

Battery connection terminals

In the UPS

In the external 

battery module

SLC-4000-TWIN PRO

Power block

Anderson connector

SLC-5000-TWIN PRO
SLC-6000-TWIN PRO
SLC-8000-TWIN PRO

Power block

SLC-10000-TWIN PRO
SLC-8000-TWIN/3 PRO

Anderson connector Anderson connector

SLC-10000-TWIN/3 PRO
SLC-12000-TWIN/3 PRO

Power block

Power block

SLC-15000-TWIN/3 PRO
SLC-20000-TWIN/3 PRO

Table 3. 

Type of connection terminals in the UPS and battery 

module.

5.3.5.  Connection of main input earth 

terminal 

(

)

 and the earth bonding 

terminal 

(

)

.

• 

As this is a device with class I protection against electric 

shocks, it is essential to install a protective earth conductor 

(connect earth (

)). Connect the conductor to the terminal or 

bar, before connecting the power supply to the UPS input.

•  Make sure that all the loads connected to the UPS are only 

connected to the protective earth bonding terminal (

). The 

fact of not restricting the earthing of the load or loads and/

or the batteries case/s or cabinet/s to this single point will 

create a return loops to earth which will affect the quality of 

the supplied power .

•  All terminals identified as earth bonding (

), are joined 

together, to the main protective earthing terminal (

) and 

to the frame of the device.

5.3.6.  Terminals for EPO (Emergency 

Power Off).

•  All UPSs have a terminal strip to install an external button, for 

Emergency Power Off (EPO).

•  The equipment is preset from factory with the EPO as nor-

mally closed contact (NC). So, the UPS will break the output 

power supply when the circuit is open: 

ˆ

Either by removing the female connector inserted in the plinth. 

This connector has a cable bridge to close the circuit (Fig. A).

Fig. A 

Fig. B

ˆ

Or by turning on the external button installed and be-

longing to the end-user. The connection in the button has 

to be in normally closed because it will open the circuit 

when turning it on.

•  Through the control panel, it can be selected the reverse 

functionality (Password required), normally open (NO).
Less punctual cases, it is not recommended to use this type 

USER MANUAL