Brochure

13
5/98
© 1998 Square D All Rights Reserved
NEMA
Size
Load
Volts
Maximum
Horsepower
Rating –
Nonplugging
and
Nonjogging
Duty
Maximum
Horsepower
Rating –
Plugging and
Jogging Duty j
Continuous
Current
Rating,
Amperes –
600 Volt
Max.
Service –
Limit
Current
Rating,
Amperes
t
Tungsten
and
Infrared
Lamp
Load,
Amperes –
250 Volts
Max.
a
Resistance
Heating Loads,
KW – Other
Than Infrared
Lamp Loads
u
KVA Rating for Switching
Transformer Primaries at 50 or 60
Cycles
3 Phase
Rating for
Switching
Capacitors
k
Transformers
Having Inrush
Currents (Worst
Case Peak) of
Not More Than
20 Times Peak of
Continuous
Current Rating
Transformers
Having Inrush
Currents (Worst
Case Peak) of
Over 20 Through
40 Times Peak of
Continuous
Current Rating
Single
Phase
Poly-
Phase
Single
Phase
Poly-
Phase
Single
Phase
Poly-
Phase
Single
Phase
Poly-
Phase
Single
Phase
Poly-
Phase
KVAR
00
115
1
⁄
2
. . . . . . . . . 9 11 5 . . . . . . . . . . . . . . . . . . . . .
200 . . . 1
1
⁄
2
. . . . . . 9 11 5 . . . . . . . . . . . . . . . . . . . . .
230 1 1
1
⁄
2
. . . . . . 9 11 5 . . . . . . . . . . . . . . . . . . . . .
380 . . . 1
1
⁄
2
. . . . . . 9 11 . . . . . . . . . . . . . . . . . . . . . . . .
460 . . . 2 . . . . . . 9 11 . . . . . . . . . . . . . . . . . . . . . . . .
575 . . . 2 . . . . . . 9 11 . . . . . . . . . . . . . . . . . . . . . . . .
0
115 1 . . .
1
⁄
2
. . . 18 21 10 . . . . . . 0.6 . . . 0.3 . . . . . .
200 . . . 3 . . . 1
1
⁄
2
18 21 10 . . . . . . . . . 1.8 . . . 0.9 . . .
230 2 3 1 1
1
⁄
2
18 21 10 . . . . . . 1.2 2.1 0.6 1.0 . . .
380 . . . 5 . . . 1
1
⁄
2
18 21 . . . . . . . . . . . . . . . . . . . . . . . .
460 . . . 5 . . . 2 18 21 . . . . . . . . . 2.4 4.2 1.2 2.1 . . .
575 . . . 5 . . . 2 18 21 . . . . . . . . . 3.0 5.2 1.5 2.6 . . .
1
115 2 . . . 1 . . . 27 32 15 3 5 1.2 . . . 0.6 . . . . . .
200 . . . 7
1
⁄
2
. . . 3 27 32 15 . . . 9.1 . . . 3.6 . . . 1.8 . . .
230 3 7
1
⁄
2
2 3 27 32 15 6 10 2.4 4.3 1.2 2.1 . . .
380 . . . 10 . . . 5 27 32 . . . . . . 16.5 . . . . . . . . . . . . . . .
460 . . . 10 . . . 5 27 32 . . . 12 20 4.9 8.5 2.5 4.3 . . .
575 . . . 10 . . . 5 27 32 . . . 15 25 6.2 11.0 3.1 5.3 . . .
1P
115 3 . . . 1
1
⁄
2
. . . 36 42 24 . . . . . . . . . . . . . . . . . . . . .
230 5 . . . 3 . . . 36 42 24 . . . . . . . . . . . . . . . . . . . . .
2
115 3 . . . 2 . . . 45 52 30 5 8.5 2.1 . . . 1.0 . . . . . .
200 . . . 10 . . . 7
1
⁄
2
45 52 30 . . . 15.4 . . . 6.3 . . . 3.1 . . .
230 7
1
⁄
2
15 5 10 45 52 30 10 17 4.1 7.2 2.1 3.6 8
380 . . . 25 . . . 15 45 52 . . . . . . 28 . . . . . . . . . . . . . . .
460 . . . 25 . . . 15 45 52 . . . 20 34 8.3 14 4.2 7.2 16
575 . . . 25 . . . 15 45 52 . . . 25 43 10.0 18 5.2 8.9 20
3
115 . . . . . . . . . . . . 90 104 60 10 17 4.1 . . . 2.0 . . . . . .
200 . . . 25 . . . 15 90 104 60 . . . 31 . . . 12 . . . 6.1 . . .
230 . . . 30 . . . 20 90 104 60 20 34 8.1 14 4.1 7.0 27
380 . . . 50 . . . 30 90 104 . . . . . . 56 . . . . . . . . . . . . . . .
460 . . . 50 . . . 30 90 104 . . . 40 68 16 28 8.1 14 53
575 . . . 50 . . . 30 90 104 . . . 50 86 20 35 10 18 67
4
200 . . . 40 . . . 25 135 156 120 . . . 45 . . . 20 . . . 10 . . .
230 . . . 50 . . . 30 135 156 120 30 52 14 23 6.8 12 40
380 . . . 75 . . . 50 135 156 . . . . . . 86.7 . . . . . . . . . . . . . . .
460 . . . 100 . . . 60 135 156 . . . 60 105 27 47 14 23 80
575 . . . 100 . . . 60 135 156 . . . 75 130 34 59 17 29 100
5
200 . . . 75 . . . 60 270 311 240 . . . 91 . . . 41 . . . 20 . . .
230 . . . 100 . . . 75 270 311 240 60 105 27 47 14 24 80
380 . . . 150 . . . 125 270 311 . . . . . . 173 . . . . . . . . . . . . . . .
460 . . . 200 . . . 150 270 311 . . . 120 210 54 94 27 47 160
575 . . . 200 . . . 150 270 311 . . . 150 260 68 117 34 59 200
6f
200 . . . 150 . . . 125 540 621 480 . . . 182 . . . 81 . . . 41 . . .
230 . . . 200 . . . 150 540 621 480 120 210 54 94 27 47 160
380 . . . 300 . . . 250 540 621 . . . . . . 342 . . . . . . . . . . . . . . .
460 . . . 400 . . . 300 540 621 . . . 240 415 108 188 54 94 320
575 . . . 400 . . . 300 540 621 . . . 300 515 135 234 68 117 400
7f
230 . . . 300 . . . . . . 810 932 . . . 180 315 . . . . . . . . . . . . 240
460 . . . 600 . . . . . . 810 932 . . . 360 625 . . . . . . . . . . . . 480
575 . . . 600 . . . . . . 810 932 . . . 450 775 . . . . . . . . . . . . 600
Tables and footnotes are taken from NEMA Standards.
j Ratings shown are for applications requiring repeated interruptions of stalled motor current or repeated closing of high transient currents encountered in rapid motor reversal, involving more
than five openings or closings per minute and more than ten in a ten-minute period, such as plug-stop, plug-reverse or jogging duty. Ratings apply to single speed and multi-speed
controllers.
t Per NEMA Standards paragraph ICS 2-321.20, the service-limit current represents the maximum ms current, in amperes, which the controller may be expected to carry for protracted periods
in normal service. At service-limit current ratings, temperature rises may exceed those obtained by testing the controller at its continuous current rating. The ultimate trip current of over-
current (overload) relays or other motor protective devices shall not exceed the service-limit current ratings of the controller.
a FLUORESCENT LAMP LOADS – 300 VOLTS AND LESS – The characteristics of fluorescent lamps are such that it is not necessary to derate Class 8502 contactors below their normal
continuous current rating. Class 8903 contactors may also be used with fluorescent lamp loads. For controlling tungsten and infrared lamp loads, and resistance heating loads, Class 8903
ac lighting contactors are recommended. These contactors are specifically designed for such loads and are applied at their full rating as listed in the Class 8903 Section.
u Ratings apply to contactors which are employed to switch the load at the utilization voltage of the heat producing element with a duty which requires continuous operation of not more than
five openings per minute. Class 8903 Types L and S lighting contactors are rated for resistance heating loads.
k When discharged, a capacitor has essentially zero impedance. For repetitive switching by contactor, sufficient impedance should be connected in series to limit inrush current to not more
than 6 times the contactor rated continuous current. In many installations, the impedance of connecting conductors may be sufficient for this purpose. When switching to connect additional
banks, the banks already on the line may be charged and can supply additional available short-circuit current which should be considered when selecting the impedance to limit the current.
The ratings for capacitor switching above assume the following maximum available fault currents: NEMA Size 2-3: 5,000 A RMS Sym.; NEMA Size 4-5: 10,000 A RMS Sym.; NEMA Size
6-7: 18,000 A RMS Sym. If available fault current is greater than these values, connect sufficient impedance in series as noted in the previous paragraph.
f See Page 16 regarding operation rates for Size 6 & 7.
The motor ratings in the above table are NEMA standard ratings and apply only when the code letter of the motor is the same as or occurs earlier in the alphabet than is shown in
the table below. Motors having code letters occurring later in the alphabet may require a larger controller. Consult local Square D field office.
Motor HP Rating
Maximum Allowable Motor
Code Letter
1
1
⁄
2
-2 L
3-5 K
7
1
⁄
2
& above H
Full Voltage Contactors and Starters — NEMA
Application Data – Class 8502, 8536