7
CIRCUIT DIAGRAM
A
240 Vac Supply
N
A1
A2
Contactor 18A 240Vac
C1
12 Vac
0Vac
95
96
NC Contact
TOL1
Strobe
Light
Buzzer
E
Thermal
Overload
TOL1
Stop
Level
Start
Level
High
Level
240VAC
Pump
P1
1
2
Main
Isolator
MSW1
ME 20
BMS
SIGNAL
IN
POWER IN
9-12V DC/AC
PUMP 2
FAULT
PUMP 1
FAULT
HIGH
LEVEL
POWER
VOLTAGE FREE CONTACTS
PCB BMS 1
Common
C1 Aux NO
C1
Power On
High Level
Pump Run
Pump Fault
BM
S
Vo
lt
Fr
ee
Circuit
Breaker 2A
CB1
Low
Level
240V
240N
12V
0V
Transformer 12Vac
T1
Active
1
2
3
4
5
6
O
N
Neutral
L1
T1
L2
T2
L3
T3
Contactor 3P
C1
