Chapter 4 Installation and Wiring
PAGE 4-24
4-4-1 Circuit Protection
●
Rated Values for Calculating Circuit Protection for 200-230VAC 3 phase
MFC Type Motor Type Motor Wattage # of Spindles per KVA KVA per Spindle
MFC-S024
RS1
70
8 Spindles
.125 KVA
-
-
-
-
-
MFC-S060
RS3
200
3 Spindles
.333 KVA
-
-
-
-
MFC-S120
RM4
1500
2 Spindles
.500 KVA
The chart above shows nominal motor ratings for standard motors, along with the power requirements
(200-230VAC 3 phase in KVA) for each spindle. (These already have a safety factor calculated in)
Use the formula below to compute transformer secondary fuse or circuit breaker sizing:
1.5 X
TRANSFORMER (VA)
SECONDARY VOLTAGE
.
.
3
= SECONDARY FUSE SIZE
Example:
1.5 X
1000 (VA)
200 VAC
.
.
3
= 4.3 AMP (USE 5 AMP FUSES)*
*
Use a fuse or circuit breaker with next available highest rating. Due to the high inrush current at power
up, it is recommended to use SLOW BLOW type fuses or fuses rated for motor loads such as
Bussman® FRS/FRN type.
Содержание AFC3000
Страница 1: ...AFC3000E HW 1 ...
Страница 17: ......
Страница 18: ...Chapter 1 Outline PAGE 1 1 Chapter 1 Outline 1 ...
Страница 25: ......
Страница 26: ...Chapter 2 Specifications PAGE 2 1 Chapter 2 Specifications 2 ...
Страница 34: ...Chapter 3 System Description PAGE 3 1 Chapter 3 System Description 3 ...
Страница 64: ...Chapter 4 Installation and Wiring PAGE 4 1 Chapter 4 Installation and Wiring 4 ...
Страница 131: ...Chapter 4 Installation and Wiring PAGE 4 68 Blank Page ...
Страница 132: ...Chapter 5 I O Expansion Unit Page 5 1 Chapter 5 I O Expansion Unit 5 ...
Страница 164: ...Chapter 6 Power up and Initial Checks PAGE 6 1 Chapter 6 Power Up and Initial Checks 6 ...
Страница 168: ...Chapter 7 Fastening Instructions PAGE 7 1 Chapter 7 Fastening Instructions 7 ...
Страница 207: ... Blank Page ...
Страница 208: ...Chapter 8 System Operation PAGE 8 1 Chapter 8 System Operation 8 ...
Страница 259: ...Chapter 8 System Operation PAGE 8 52 ...
Страница 260: ...Chapter 9 Maintenance Inspection PAGE 9 1 Chapter 9 Maintenance Inspection 9 ...
Страница 268: ...Chapter 10 Troubleshooting PAGE 10 1 Chapter 10 Troubleshooting 10 ...
Страница 294: ......