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PROTECTION AND CONTROL PANELS FOR
THREE-PHASE SUBMERSIBLE PUMPS
Main description
• Protections:
Dry running by power factor (cos ϕ).
cos ϕ
Overload with thermal memory.
Phase loss or phase unbalance.
Incorrect phase sequence.
Short-circuit.
• Manual/remote or automatic reset (adjustable from 2 to
75 m).
• Indicates cause of tripping.
• Control point for pressure switch, buoy, programmer...
Parts
• Case:
- From 0,5 to 15 HP: Plastic case with transparent lid, 230x250x150mm, IP554
- From 20 to 25 HP: Metallic case 500x400x200mm, IP55
- From 30 to 40 HP: Metallic case 600x400x200mm, IP55
- From 50 to 60 HP: Metallic case 600x500x200mm, IP55
• Circuit breaker 3P or 3P+N
• Fanox PF electronic relay.
• Contactor.
• Switch ON/OFF
• Signalling LED´s
• Connecting strip.
• Cable glands.
INSTRUCTIONS MANUAL
Range
Models
Code
(A)
CBT-1
12301
1,1 ... 2
CBT-2
12302
2,8 ... 3,8
CBT-5
12305
5,5 ... 9,5
CBT-7
12307
13
CBT-10
12310
16,5
CBT-15
12315
24
CBT-20M
12316
32
CBT-25M
12317
40
CBT-30M
12318
47
CBT-40M
12319
64
CBT-50M
12320
79
CBT-60M
12332
92
Connexion diagram
To prevent electrical shocks whilst installing or operating the relay,
disconnect the power supply.
1. Check that the auxiliary voltage supply is correct.
2. Connect the wires of the motor to U, V and W. Check that the
phases have been placed in the correct sequence.
3. If terminals P1 and P2 are not going to be used for a pressure
switch, a buoy, a timer, etc., they must be bridged with a cable.
4. Connect the power input to the terminals of the circuit breaker.
Check that the phases have been placed in the correct sequence
if not, the LED
shall remain lit. In this case, two of the
three network lines of the circuit breaker must be disconnected
(e.g. R and T) and their position must be changed to establish
the correct sequence.
KM
CONTACTOR
PF RELAY
L1
R
S
T
POWER INPUT
U
V
OUTPUT TO THE
PUMP
Motor 3 x 400 V 50/60 Hz
HP
kW
0,5 ... 1
0,37 ... 0,75
1,5 ... 2
1,1 ... 1,5
3 ... 5,5
2,2 ... 4
7.5
5,5
10
7,5
15
11
20
15
25
18,5
30
22
40
30
50
37
60
45
KM
L2
L3
P1
P2
W
INPUT
PRESSURE
CONTACT
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