CONTROL PANELS AND STARTERS FOR 2 THREE-PHASE ELECTRIC PUMPS DIRECT START WITH THERMAL PROTECTION AND INTEGRATED EXCHANGER
QTD20/...kW-T-SI Direct Start control panel for 2 three-phase electric pumps with thermal protection and integrated exchanger
CONNECTION DIAGRAM
A
P
B
GENERAL CHARACTERISTICS:
– Electronic control panel; – Power supply 3 ~ 50/60Hz 400V ± 10%; – Very low voltage inputs for external control from pressure switch or float switch; – Very low voltage input for external control from pressure or float switches (N.O. contact) for minimum level control against dry run or too full; – Sequence exchanger for motor starting inside the electronic mother board; – N° 2 operating motor lights; – N° 2 protected motor lights; – Selectors for automatic-off-manual operation (the last control is not latched); – Contactors with thermal relay internally resetable; – Motors protection fuses; – Auxiliary protection fuses;
– General disconnecting switch with door lock; – Thermoplastic box; – Protected to IP 50.
ELECTRONIC SPARE PARTS:
PROTECTED TO IP55 (OPTIONAL):
OPERATING CONDITIONS:
– n. 2 switches cover, code 644.344.
– Ambient temperature -5/+40°C – Relative moisture 50% with a max temperature of 40°C.
– Mother board Code 223.71; – Synoptic, Code 316.11.
TECHNICAL DATA AND OPERATING POWERS APPROX POWER AT 230V Hp
CURRENT ABSORPTION (A) MIN
CURRENT ABSORPTION (A) MAX
WEIGHT kg
DIMENSIONS mm A
DIMENSIONS mm B
DIMENSIONS mm P
0,37
0,5
0,9
1,3
4
340
235
160
0,55
0,75
1,4
1,9
4
340
235
160
0,75 - 1,1
1 - 1,5
2
3
4
340
235
160
2
3
4,5
4
340
235
160
2,5 - 3
4,5
5,8
4
340
235
160
6
8
4
340
235
160
5,5 - 7,5
9
13,5
4
340
235
160
8 - 9,5
14
18
4,5
420
315
165
7,5 - 10
10 - 14
17
22
5,5
420
315
165
11 - 13,5
15 - 18
20
29
5,5
420
315
230
20 - 22
28
35
5,5
550
400
230
MODEL
CODE
APPROX POWER AT 230V kW
QTD20/0,37kW-T-SI
245.81
QTD20/0,55kW-T-SI
245.82
QTD20/1,1kW-T-SI
245.83
QTD20/1,5kW-T-SI
245.84
1,5
QTD20/2,2kW-T-SI
245.85
1,8 - 2,2
QTD20/3,7kW-T-SI
245.86
3 - 3,7
4-5
QTD20/5,5kW-T-SI
245.87
4 - 5,5
QTD20/7kW-T-SI
245.88
6-7
QTD20/10kW-T-SI
245.89
QTD20/13,5kW-T-SI
245.90
QTD20/16kW-T-SI
245.91
15 - 16
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