Njoy Balder 10000, User Manual

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5.1. Single UPS installation

Installation and wiring must be performed in accordance with the local 

electric laws/regulations and execute the following instructions by 

professional personnel.

Step 1.

 Make sure the mains wire and breakers in the building are 

enough for the rated capacity of UPS to avoid the hazards of 

electric shock or fire.

NOTE!

Do not use the wall receptacle as the input power source for the UPS, as its rated 

current is less than the UPS’s maximum input current. Otherwise the receptacle 

may be burned and destroyed.

Step 2.

 Switch off the mains switch in the building before installation.

Step 3.

Turn off all the connected devices before connecting to the UPS.

Step 4.

Prepare wires based on the following table:

Model

Wiring specs: AWG / cross section(mm)

Input

Output

Battery

Ground

Balder 6000

10 AWG

2.59 mm

10 AWG

2.59 mm

10 AWG

2.59 mm

10 AWG

2.59 mm

Balder 10000

8 AWG

3.26 mm

8 AWG

3.26 mm

8 AWG

3.26 mm

8 AWG

3.26 mm

NOTE!

The cable for Balder 6000 should be able to withstand over 40A current. It is 

recommended to use 10AWG or thicker wire for safety and efficiency.
The cable for Balder 10000 should be able to withstand over 63A current. It is 

recommended to use 8AWG or thicker wire for safety and efficiency.
The selections for color of wires should be followed by the local electrical laws and 

regulations.

Step 5.

 Remove the terminal block cover on the rear panel of UPS. Then 

connect the wires according to the following terminal block 

diagrams. Connect the ground wire first when making wire 

connection. 

NOTE!

Disconnect the earth wire last when making wire disconnection!

Output Line

Output Neutral

Input Neutral

Input Line

Ground

Step 6.

 Put the terminal block cover back to the rear panel of the UPS.

NOTE 1:

Make sure that the wires are connected tightly to the terminals.

NOTE 2:

Please install the output breaker between the output terminal and the load, 

and the breaker should be qualified with leakage current protective function if 

necessary.

NOTE 3:

UPS model Balder 6000 and Balder 10000 does not have any internal batteries. 

You need to add external battery cabinets if you need UPS to offer backup time. 

  Make sure the UPS is not turned on before installation. The UPS 

should not be turned on during wiring connection.

  Make sure a DC breaker or other protection device between UPS 

and external battery pack is installed. If not, please install it carefully. 

Switch off the battery breaker before installation.

 WARNINGS

NOTE 1:

Set the battery pack breaker in “OFF” position and then install the battery pack.

NOTE 2:

If more than one battery cabinets are connected to the UPS, they must be identical 

and they must contain the same number and type of batteries (it is preferable for the 

batteries to be identical). Please make sure you correctly set charging current (see 

parameter 17, page 26) and battery number in cabinet (see chapter 6.9, page 32)