Protection Devices; Internal Fuses - Baldor 22H series Installation & Operating Manual

Section 1
General Information

Protection Devices

Internal Fuses

Zero Crossing
(Input Interface
Control
Board)
Size Size
Rating
3
/ A
10
C+
500VAC
3
/ A
10
D+
500VAC
3
/ A
10
D
500VAC
3
/ A
10
E
500VAC
3A
F
600VAC
G+ 250HP
G+300HP
G+350HP
G+400HP
G+450HP
Not applicable.
3-10 Receiving & Installation
Be sure a suitable input power protection device is installed. Use the recommended
circuit breaker or fuses listed in Table 3-5. Input and output wire size is based on the use
of copper conductor wire rated at 75 C. The table is specified for NEMA B motors.
Circuit Breaker:
Fast Action Fuses:
Very Fast Action:
Time Delay Fuses:
Power Disconnect
A power disconnect should be installed between the input power service and the control
for a fail safe method to disconnect power. The control will remain in a powered-up
condition until all input power is removed from the control and the internal bus voltage is
depleted.
Table 3-4 Internal Fuses
Filter Fuses
(Filter Board)
Type Rating Type
FLQ-
5A FNQ-5 or
3
/ or
10
500VAC Equiv.
Equiv.
FLQ-
5A FNQ-5 or
3
/ or
10
500VAC Equiv.
Equiv.
FLQ-
10A KTK-10
3
/ or
10
600VAC or Equiv.
Equiv.
FLQ-
10A KTK-10
3
/ or
10
600VAC or Equiv.
Equiv.
ATM-3 3A KTK-3 or
or Equiv. 500VAC Equiv.
50A JJS or
600VAC Equiv.
50A JJS or
600VAC Equiv.
60A JJS or
600VAC Equiv.
70A JJS or
600VAC Equiv.
70A JJS or
600VAC Equiv.
3 phase, thermal magnetic.
Equal to GE type THQ or TEB for 230 VAC or
GE type TED for 460 VAC
230 VAC, Buss KTN
460 VAC, Buss KTS to 600A (KTU 601 - 1200A)
230 VAC, Buss JJN
460 VAC, Buss JJS
230 VAC, Buss FRN
460 VAC, Buss FRS to 600A (KTU 601 - 1200A)
Control
Transformer
Rating Type Rating
MDA-
3.2A
2
3 / or
10
250VAC
Equiv.
MDA-
3.2A
2
3 / or
10
250VAC
Equiv.
MDA-
3.2A
2
3 / or
10
250VAC
Equiv.
MDA-
3.2A
2
3 / or
10
250VAC 250VAC
Equiv.
3A KTK-3 or
600VAC Equiv. 600VAC
FNQ-
1
3 / A
2 1
3 / or
2
500VAC 500VAC
Equiv.
FNQ-
1
3 / A
2 1
3 / or
2
500VAC 500VAC
Equiv.
FNQ-
1
3 / A
2 1
3 / or
2
500VAC 500VAC
Equiv.
FNQ-
1
3 / A
2 1
3 / or
2
500VAC 500VAC
Equiv.
FNQ-
1
3 / A
2 1
3 / or
2
500VAC 500VAC
Equiv.
Soft Start Fan Control
Transformer Transformer
Type Rating
1 1
/ A ABC /
2 2
or Equiv.
3A KTK-3 or
Equiv.
4A FNQ-4 or 3A
Equiv. 500VAC
4A FNQ-4 or 3A
Equiv. 500VAC
4A FNQ-4 or 3A
Equiv. 500VAC
4A FNQ-4 or 3A
Equiv. 500VAC
4A FNQ-4 or 3A
Equiv. 500VAC
Type
FNQ-3 or
Equiv.
FNQ-3 or
Equiv.
FNQ-3 or
Equiv.
FNQ-3 or
Equiv.
FNQ-3 or
Equiv.
MN722