Ul Short Circuit Ratings - AuCom EMX3-1600C User Manual

POWER CIRCUITS
6.7

UL Short Circuit Ratings

Short circuit current ratings (SCCR) are available for 480 VAC and 600 VAC installations.
• 480 VAC circuits
For UL compliant installation, select a fuse that meets the specified fuse class and maximum fuse rating.
• 600 VAC circuits
For UL compliant installation, the starter can be protect by either fuses or a circuit breaker as specified in the following tables.
Fuse selection
@ 480 VAC max.
Model
Short
Circuit
Rating
EMX3-0023B
EMX3-0043B
EMX3-0050B
EMX3-0053B
EMX3-0076B
EMX3-0097B
EMX3-0100B
EMX3-0105B
EMX3-0145B
EMX3-0170B 65 kA
EMX3-0200B
EMX3-0220B
EMX3-0255B
EMX3-0350B
EMX3-0425B
EMX3-0500B
EMX3-0580B
EMX3-0700B
EMX3-0820B
EMX3-0920B
EMX3-1000B
EMX3-0255C 65 kA
EMX3-0360C
EMX3-0380C
EMX3-0430C 100 kA
EMX3-0620C
EMX3-0650C
EMX3-0790C
EMX3-0930C
EMX3-1200C
EMX3-1410C 65 kA
EMX3-1600C
XXX = blade type. Refer to Ferraz/Mersen catalog for details.
† - Models provided with a "3 cycle rating" are suitable for use in a circuit with the prospective current noted, when protected by any
UL Listed fuses or UL Listed circuit breakers sized according to the NEC.
20
| User Manual (710-04840-00M)
Max. Fuse
Short
Rating (A)
Circuit Listed J, L or RK5 Class
(fuse class) Rating
25 (J) AJT25
50 (J) AJT50
60 (J) 10 kA AJT60
80 (J) AJT80
100 (J) AJT100
125 (J) AJT125
150 (J) AJT150 / RK5 200
175 (J) AJT175 / RK5 200
200 (J) 18 kA AJT200 / RK5 300
250 (J) AJT250 / RK5 300
350 (RK1/J) †
400 (J) †
450 (J) †
600 (J) 30 kA Any 600 A, Class J
800 (L) Any 800 A, Class L
42 kA
1200 (L) Any 1200 A, Class L
85 kA
350 (RK1/J) 18 kA AJT300
600 (L) Any 600 A, Class L
800 (L) 100 kA Any 800 A, Class L
1200 (L) Any 1200 A, Class L
1600 (L) A4BQ1600
2000 (L) 85 kA A4BQ2000
A4BQ2500
@ 600 VAC
Ferraz/Mersen fuse,
Ferraz/Mersen fuse, R/C
Fuse
A070URD30XXX0063
A070URD30XXX0125
A070URD30XXX0200
A070URD30XXX0315
A070URD30XXX0450
Not available
A070URD33XXX0630
A070URD33XXX0700
Not available
A070URD33XXX1000
A070URD33XXX1400
A070URD30XXX0450
A070URD33XXX0630
A070URD33XXX0700
A070URD33XXX1000
A070URD33XXX1400
A065URD33XXX1800
A055URD33XXX2250
600 V Short cct
semi-conductor fuses
Not available
Not available
rating –
3 cycles †
18 kA –
For 3 cycles
30 kA –
For 3 cycles
42 kA –
For 3 cycles