AuCom EMX3-1600C - UL Short Circuit Ratings

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.
@ 600 VAC
Model
Short
Circuit
Rating
Max. Fuse
Rating (A)
(fuse class)
Short
Circuit
Rating
Ferraz/Mersen fuse,
Listed J, L or RK5 Class
Fuse
Ferraz/Mersen fuse, R/C
semi-conductor fuses
600 V Short cct
rating –
3 cycles †
EMX3-0023B 25 (J) AJT25 A070URD30XXX0063
EMX3-0043B
50 (J) AJT50
EMX3-0050B A070URD30XXX0125
EMX3-0053B 60 (J) 10 kA AJT60
EMX3-0076B 80 (J) AJT80 Not available
EMX3-0097B
100 (J) AJT100
A070URD30XXX0200
EMX3-0100B
EMX3-0105B 125 (J) AJT125
EMX3-0145B 150 (J) AJT150 / RK5 200 A070URD30XXX0315
EMX3-0170B 65 kA 175 (J) AJT175 / RK5 200
EMX3-0200B 200 (J) 18 kA AJT200 / RK5 300
A070URD30XXX0450
EMX3-0220B 250 (J) AJT250 / RK5 300
EMX3-0255B 350 (RK1/J) †
Not available
18 kA –
EMX3-0350B 400 (J) † For 3 cycles
EMX3-0425B
450 (J)
†
A070URD33XXX0630
30 kA –
EMX3-0500B
600 (J)
30 kA
Any 600 A, Class J
A070URD33XXX0700
For 3 cycles
EMX3-0580B
800 (L) Any 800 A, Class L Not available
EMX3-0700B
42 kA
EMX3-0820B
A070URD33XXX1000
42 kA –
EMX3-0920B
1200 (L)
85 kA
Any 1200 A, Class L
A070URD33XXX1400
For 3 cycles
EMX3-1000B
EMX3-0255C
65 kA
350 (RK1/J)
18 kA
AJT300
A070URD30XXX0450
EMX3-0360C
600 (L)
Any 600 A, Class L
A070URD33XXX0630
EMX3-0380C
A070URD33XXX0700
EMX3-0430C
100 kA
800 (L)
100 kA
Any 800 A, Class L
EMX3-0620C
A070URD33XXX1000
Not available
EMX3-0650C
1200 (L)
Any 1200 A, Class L
EMX3-0790C
A070URD33XXX1400
EMX3-0930C
EMX3-1200C 1600 (L) A4BQ1600 A065URD33XXX1800
EMX3-1410C 65 kA 2000 (L) 85 kA A4BQ2000 A055URD33XXX2250
EMX3-1600C A4BQ2500
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)