Short Circuit Ratings; Machinery Directive; Wiring Protection - Mitsubishi Electric FR-A800 Installation Manuallines

APPENDIX

Wiring protection

For installation Class T, Class J, or Class CC fuse or UL 489 Molded Case Circuit Breaker (MCCB) according to the local
directives must be provided.
FR-A820-
Rated fuse voltage [V]
Without power
factor improving
Fuse Maximum
reactor
allowable rating [A]
*1 With power factor
improving reactor
Molded case circuit breaker (MCCB)
Maximum allowable rating [A]
FR-A820-
Rated fuse voltage [V]
Without power
factor improving
Fuse Maximum
reactor
allowable rating [A]
*1 With power factor
improving reactor
Molded case circuit breaker (MCCB)
Maximum allowable rating [A]
FR-A840-
Rated fuse voltage [V]
Without power
factor improving
Fuse Maximum
reactor
allowable rating [A]
*1
With power factor
improving reactor
Molded case circuit breaker (MCCB)
Maximum allowable rating [A]
FR-A840-
Rated fuse voltage [V]
Without power
factor improving
Fuse Maximum
reactor
allowable rating [A]
*1 With power factor
improving reactor
Molded case circuit breaker (MCCB)
Maximum allowable rating [A]
FR-A846-
Rated fuse voltage [V]
Fuse Maximum allowable rating [A]
Molded case circuit breaker (MCCB)
Maximum allowable rating [A]
*1
Maximum allowable rating by US National Electrical Code. Exact size must be chosen for each installation.
For wiring protection of the converter unit (FR-CC2) refer to the FR-CC2 Instruction Manual-
A.1.3 Short circuit ratings
200V class
Suitable for use in a circuit capable of delivering not more than 100kA rms symmetrical amperes, 264V maximum.
400V class
Suitable for use in a circuit capable of delivering not more than 100kA rms symmetrical amperes, 550V or 600V
maximum.
A.1.4 Machinery directive
The frequency inverter itself is not a machine in the spirit of the EU machinery directive. The start up of the frequency
inverter in a machine is prohibited so long until it has been confirmed that the entire machine complies with the provisions
of Directive 98/37/EC (from 29.12.2009 Machinery Directive 2006/42/EC).
58
00046 00077 00105
(0.4K) (0.75K) (1.5K)
240V or more
15 20 30
15 20 20
15 15 25
*1
01870 02330 03160
(37K) (45K) (55K)
240V or more
400 500 500
350 400 500
450 500 700
*1
00023 00038 00052
(0.4K) (0.75K) (1.5K)
500V or more
6 10 15
6 10 10
15 15 15
*1
00930 01160 01800
(37K) (45K) (55K)
500V or more
200 250 300
175 200 250
225 250 450
*1
00023 00038 00052
(0.4K) (0.75K) (1.5K)
500V or more
*1 6 10 10
15 15 15
*1
00167 00250 00340 00490
(2.2K) (3.7K) (5.5K) (7.5K)
40 60 80 150
30 50 70 125
40 60 80 110
03800 04750
(75K) (90K)
— —
600 700
900 1000
00083 00126 00170 00250
(2.2K) (3.7K) (5.5K) (7.5K)
20 30 40 70
15 25 35 60
20 30 40 60
02160 02600 03250 03610
(75K) (90K) (110K) (132K)
― ―
— —
300 350 400 500
450 500 600 800
00083 00126 00170 00250
(2.2K) (3.7K) (5.5K) (7.5K)
15 25 35 60
20 30 40 60
00630 00770 00930 01250
(11K) (15K) (18.5K) (22K)
175 200 225 300
150 200 200 250
150 190 225 300
00310 00380 00470 00620
(11K) (15K) (18.5K) (22K)
80 90 110 150
70 90 100 125
70 90 100 150
04320 04810 05470 06100
(160K) (185K) (220K) (250K)
― ― ― ―
600 700 800 900
900 1000 1200 1200
00310 00380 00470
(11K) (15K) (18.5K)
70 90 100
70 90 100
01540
(30K)
350
300
350
00770
(30K)
175
150
175
06830
(280K)
―
1000
1200