Wiring Procedure - Tripp-Lite SmartOnline SUT20K Manuel De L'utilisateur

3. Installation and Wiring
WARNING:
1. Incorrect wiring will lead to severe electric shock and damage to the UPS.
2. The UPS will not work normally if the input power's neutral (N) is not firmly connected or is not connected to
the AC Input Block's neutral (N) terminal.

3.6.2 Wiring Procedure

Note: Prior to wiring, first read 3.6.1 Precautions Prior to Wiring.
1
Remove the cover plate to access the wiring terminal block shown in Figure 3-5.
4-Pole
Contactor
Protective
Device
2
For grounding
the UPS
N R S T
CS
CS:
Contactor
Solenoid
N R S T
Connects to the
1
main AC source
(Figure 3-5: Single Unit Wiring Diagram)
N
N R S T
Manual
Bypass
Breaker
R S T
N
11
4
For grounding
the Critical Loads
R S T
Output Breaker:
S T
N R
Connect to the
Critical Loads
3