Energy Butler Hybrid Series
User Manual
29
PV
Array
Grid
Normal
Loads
RCD
RCD
Back-up
Loads
PV
Array
Communication
Communication
BACK-UP
The additional
grounding hole
ON-GRID
PV1+
Breaker
E-BAR
N-BAR
Breaker
RJ45
1(L1)
5(L1
-S1)
12(L)
9(L3-S1)
10(L3-S2)
2(L2)
6(L1
-S2)
3(L3)
7(L2-S1)
4(N)
8(L2-S2)
13(N)
Breaker
Main Switch/Breaker
CT
CT-1
CT-2
CT-3
Switch/Breaker
L1
L1
L2
L2
L3
L3
N
N
PV2+
PV1-
PV2-
RJ45-BMS
RJ45-Meter
B+
B-
Battery
M-TEC
Hybrid
Inverter
Meter
PV
Array
Grid
Normal
Loads
RCD
RCD
Back-up
Loads
PV
Array
Communication
Communication
BACK-UP
The additional
grounding hole
ON-GRID
PV1+
Breaker
E-BAR
N-BAR
Breaker
RJ45
1(L1)
5(L1
-S1)
12(L)
9(L3-S1)
10(L3-S2)
2(L2)
6(L1
-S2)
3(L3)
7(L2-S1)
4(N)
8(L2-S2)
13(N)
Breaker
Main Switch/Breaker
CT
CT-1
CT-2
CT-3
Switch/Breaker
L1
L1
L2
L2
L3
L3
N
N
PV2+
PV1-
PV2-
RJ45-BMS
RJ45-Meter
B+
B-
Battery
M-TEC
Hybrid
Inverter
Meter
Danger: Do not connect the N-wire as a protective ground wire to the inverter casing. Otherwise, it may cause electric
shock.
Attention: Good grounding is good for resisting surge voltage shock and improving EMI performance. Inverters must be
well-grounded.
For a system with only one inverter, just ground the PE cable.
For a multi-inverter system, all inverters PE wire need to be connected to the same grounding copper bar to ensure
equipotential bonding.
Single inverter wiring diagram
This diagram is an example without special requirement on electrical wiring connection. Neutral line of AC supply can be isolated
or switched.
External ground connection
Connect the inverter and ground bar through PE wire to achieve the purpose of grounding protection. Please always remember
wiring the PE wire before wiring other wires.
This diagram is an example for Australia and New Zealand. Neutral line of AC supply must not be isolated or switched.
