Teikoku USA | Chempump
Instruction Manual NC-Series 0220
13
NOTES:
1.)
SELECT CLASS 10 HEATERS BASED ON START KVA WITH A 12 SECOND MAX TRIP TIME.
2.)
( ) INDICATES REDUCTION IN SWITCH SIZE WHEN DUAL-ELEMENT FUSES ARE USED FOR MOTOR BRANCH CIRCUITS.
3.)
(EXCEPT WHERE NOTED), THE SWITCH SIZES ARE THE SAME FOR ALL TYPES OF FUSES.
4.)
CURRENT RATINGS BASED ON THREE CONDUCTOR 75O C INSULATED COPPER WIRE AT 30O C AMBIENT.
5.)
INDUCTION MOTOR, SYNCHRONOUS SPEED 3600 RPM.
Table 2-7. Electrical Wiring Data 575 Volt, 3 Phase, 60 Hz NC-Series
Motor
Size
Switch
Size
AMPs
Breaker
Size
AMPs
Starter
NEMA
Size
Conductor
Size
for Motor
Leads
Conduit Size
for Motor
Leads
Conduit Size
For Motor,
PB and TCO
Leads
Fuse Size
Code and
Current
Limiting
AMPs
Fuse Size
Dual Element
AMPs
Max Setting
Time Limit
Protection
AMPs
N1
30
15
1
14
1/2
3/4
20
15
9.6
N2
60 (30
30
2
12
3/4
3/4
40
25
18.0
N3
100 (60)
50
3
10
3/4
1
60
45
29.0
N4
100 (60)
70
3
8
1
1
60
50
40.5
N5
150 (100)
100
4
6
1
1 1/4
100
90
61.5
N6
200
200
5
1
1 1/2
2
175
150
119.4
N7
400
250
5
2/0
2
2 1/2
300
200
143.3
N8
400
300
5
3/0
2 1/2
2 1/2
350
300
191.4
NL.5
15
6
00
14
1/2
3/4
6
3
3.6
NL1
15
6
0
14
1/2
3/4
6
6
5.1
NL2
30
15
1
14
1/2
3/4
20
15
9.7
NL3
30
25
2
14
1/2
3/4
25
15
15.5
NL4
60 (30)
30
2
12
3/4
3/4
40
25
19.8
NL5
60
45
3
8
1
1
45
45
34.6
Table 2-8. Coolant Flow Rates (Value based on 70˚ F (21˚ C)
Motor Size
Coolant Flow Rate (GPM)
N1
3.0
N2
3.7
N3
4.5
N4
5.3
N5
7.2
