Ul Fuse Selection And Short Circuit Ratings - GE ASTAT XL User Manual

13.7

UL Fuse Selection and Short Circuit Ratings

Two Short Circuit Current Ratings (SCCR) are available for UL compliant applications.
• Standard Fault Currents ( @ 600 VAC circuits)
The standard fault currents are determined with reference to UL508, section 51, table 51.3. This
specifies the short circuit current that the starter must withstand based upon the soft starter
model horsepower rating (or Full Load Current (FLC) rating or Locked Rotor Amps (LRA) depending
upon model).
If using the Standard Fault Current Ratings, the fuse used must be in accordance with the
information in the table below (i.e. model and manufacture specific).
• High Available Fault Currents ( @ 480 VAC circuits)
It is possible to specify short circuit current ratings exceeding the minimum ratings set by the
Standard Fault Currents (see above) when the soft starter is capable of withstanding the high
available short circuit current in accordance with the UL 508 test.
If using the High Available Fault Current Ratings, then a suitable fuse may be selected based upon
Amperage and Fuse Class (J or L as applicable).
Nominal
Model rating
(A)
QLxxB0023D 23
QLxxB0043D 43
QLxxB0050D 50
QLxxB0053D 53
QLxxB0076D 76
QLxxB0097D 97
QLxxB0100D 100
QLxxB0105D 105
QLxxB0145D 145
QLxxB0170D 170
QLxxB0200D 200
QLxxB0220D 220
QLxxB0255D 255
QLxxB0350D 350
QLxxB0425D 425
QLxxB0500D 500
QLxxB0580D 580
QLxxB0700D 700
QLxxB0820D 820
QLxxB0920D 920
QLxxB1000D 1000
QLxxX0255D 255
QLxxX0360D 360
QLxxX0380D 380
QLxxX0430D 430
QLxxX0620D 620
QLxxX0650D 650
QLxxX0790D 790
QLxxX0930D 930
QLxxX1200D 1200
QLxxX1600D 1600
XXX = blade type. See Ferraz/Mersen catalog for details.
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ASTAT XL User Manual
Short Circuit Ratings
HIGH AVAILABLE
@ 480 Max. Fuse
@ 600
VAC Rating (A)
VAC
max. (fuse class)
65kA 25 (J) 10kA AJT25
65kA 50 (J) 10kA AJT50
65kA 50 (J) 10kA AJT50
65kA 60 (J) 10kA AJT60
65kA 80 (J) 10kA AJT80
65kA 100 (J) 10kA AJT100
65kA 100 (J) 10kA AJT100
65kA 125 (J) 10kA AJT125
65kA 150 (J) 18kA AJT150 / RK5 200
65kA 175 (J) 18kA AJT175 / RK5 200
65kA 200 (J) 18kA AJT200 / RK5 300
65kA 250 (J) 18kA AJT250 / RK5 300
65kA 225 (J) 18kA †
65kA 225 (J) 18kA †
65kA 350 (J) 30kA †
65kA 600 (J) 30kA 600, Class J
65kA 800 (L) 30kA 800, Class L
65kA 800 (L) 42kA 800, Class L
65kA 1200 (L) 42kA 1200, Class L
65kA% 1200 (L) 85kA 1200, Class L
65kA% 1200 (L) 85kA 1200, Class L
65kA 200(J) 18kA AJT300
65kA 400 (J) 18kA AJT400 / RK5 500
65kA 450 (J) 18kA AJT450 / RK5 500
65kA 450 (J) 30kA AJT450
65kA 800 (L) 42kA A4BQ800
65kA 800 (L) 42kA A4BQ800
65kA 1200 (L) 42kA A4BQ1200
65kA 1200 (L) 42kA A4BQ1200
65kA 1600 (L) 85kA A4BQ1600
65kA 2000 (L) 85kA A4BQ2500
DET-812
Fout! Stijl niet gedefinieerd.
STANDARD FAULT CURRENT
Ferraz/Mersen fuse, Ferraz/Mersen fuse,
Listed J, L or RK5 R/C semi-conductor
Class Fuse
A070URD30XXX0063
A070URD30XXX0125
A070URD30XXX0125
A070URD30XXX0125
A070URD30XXX0200
A070URD30XXX0200
A070URD30XXX0200
A070URD30XXX0315
A070URD30XXX0315
A070URD30XXX0315
A070URD30XXX0450
A070URD30XXX0450
-
-
A070URD33XXX0630
A070URD33XXX0700
-
-
A070URD33XXX1000
A070URD33XXX1400
A070URD33XXX1400
A070URD30XXX0450
A070URD33XXX0630
A070URD33XXX0700
A070URD33XXX0700
A070URD33XXX1000
A070URD33XXX1000
A070URD33XXX1400
A070URD33XXX1400
A065URD33XXX1800
A050URD33XXX2500
600V
Short cct
rating –
3 cycles †
fuses
n/a
18kA –
3 cycles
30kA –
3 cycles
42kA –
3 cycles
n/a