Delta Ultron DPM Gen2 Series User Manual page 73

NOTE:
* The terminals listed in the above 'Item' column are all located at the front
1
of the UPS system cabinet. Please refer to
Table 5-5: External Maintenance Bypass Cabinet's Breakers, Switches & Wiring
Information
No.
Input Breaker (Q1) including L1/
1
L2/ L3 terminals
Bypass Breaker (Q2) including
2 L1/ L2/ L3 terminals
(only for dual input application)
Manual Bypass Breaker (Q3)
3
including L1/ L2/ L3 terminals
Output Breaker (Q4) including
4
L1/ L2/ L3 terminals
5
PE (protective earth) Terminal
6
GND (ground) Terminals
NOTE:
1. * All breakers and terminals listed in the above 'Item' column must be
1
installed in the external maintenance bypass cabinet (user-supplied).
Refer to
2. * The PE (protective earth) connection ensures that all exposed
2
conductive surfaces are at the same electric potential as the Earth to
avoid the risk of electrical shock due to leakage current or an insulation
fault.
Item*
1
1.2 Connection Warnings
Figure 2-6
Function
Connects to the main AC source.
Connects to the bypass AC source.
Single Input:
•
Connects to the main AC source.
Dual Input:
•
Connects to the bypass AC source.
Connects to the critical loads.
Protective earthing for protection
against electrical shock in case of
fault* . The terminal must be connected
2
to the main earth.
The terminals are used to ground the
devices, which are associated with UPS
operation.
for relevant information.
73
.