2.6
Internal Mechanisms
2.6.1 Breakers
The UPS has four breakers: Main Input
Breaker (Q1), Bypass Breaker (Q2),
Manual Bypass Breaker (Q3) and Output
Breaker (Q4). Please refer to Figure 2-9.
2.6.2 Wiring Terminal Block
Open the UPS's back doors and you will
see the wiring terminal block. For wiring
instructions, please see 5. Installation
and Wiring.
(Figure 2-10 : Rear View/ Wiring Terminal Block)
Modulon DPH Series 25-150 kW
UPS Rear
Main Input
Bypass Input
Output
T
S
R
T
S
R
T
S
R
N
Byp.
N
Main
I/P N
I/P N
Batt.
Batt.
Input
Input
Output
Output
Breaker (Q4)
(Figure 2-9 : Breaker Location )
2
Main Input
3
Bypass
Block
Input Block
Battery
6
Input
Block
2 - 1 0
UPS Front
Output
M
a
n
u
l a
B
y
p
a
s
s
B
y
p
a
s
s
n I
p
t u
M
a
n i
n I
p
t u
M
a
n
u
l a
B
y
p
a
s
s
B
y
p
a
s
s
n I
p
t u
Manual Bypass
Bypass
Breaker (Q3)
Breaker (Q2)
5
Output
Block
For UPS
For the
1
4
Grounding(
)
Critical Loads'
Grounding( )
M
a
n i
n I
p
t u
Main Input
Breaker (Q1)