Joslyn Clark USAVAC Medium Voltage Technical Specifications
USA VAC - Medium V oltage Engineering Data
Technical Specifications
CSA 5KV. 400A
UL Recognized 5KV
500V 7.2KV 400A
Power Application Ratings
Voltage KV
Motor Type
.8 P.F. Ind.
or Syn Motor
1.0 P.F. Syn
Motor
.8 P.F. Ind.
or Syn Motor
1.0 P.F. Syn
Motor
.8 P.F. Ind.
or Syn Motor
1.0 P.F. Syn
Motor
.8 P.F. Ind.
or Syn Motor
Transformer Load KVA
Three
Phase
Transformer
Capacitor Load KVAR
Three
Phase
Capacitor
Current
200A
200A
400A
400A
600A
600A
800A
200A
400A
600A
800A
1200A
200A
400A
600A
800A
1200A
2.5 3.3 4.16 6.6
Motor HP
900
1250
1500
1000
1500
1750
1750
2250
3000
2000
2500
3500
2250
3250
4500
2250
3500
4750
2750
4000
5500
750
1000
1500
1500
2000
3000
2500
3000
4250
2750
3750
5250
4100
5000
7000
550
750
1050
1125
1500
2250
1650
2250
3375
2200
2900
4500
2750
3750
5625
Vacuum Contactor & Starter Ratings
Standard - NEMA ICS 2-324, UL 347, CSA 22.2 , IEC 470, BS 775
Description
Catalog Number &
Rated Voltage
2500
2750
5000
5250
6750
7000
8000
2000
4000
6000
7500
10000
1500
3000
4500
5000
7500
2.5KV
5.0KV
7.2KV
Power Ratings
Operational Rated Current
Operational Rated Frequency
E1 Interrupt Rating
MVA & KA Values
Contactor Only
E2 Fuse Co-ordination
MVA & KA
Withstand KA
Short Time Current
Switching Frequency
Elec. Life at Rated Current
Mechanical Life
Dielectric Strength
Impulse withstand B.I.L.
Chopping Current Max.
1 Sec. KA
5 Sec. KA
15 Sec. KA
Control Ratings AC&DC
Rated Control Voltage
Allowable Fluctuation
Closing Power VA/Duration
Holding Power
Opening Time Ave.
Closing Time Ave.
Pick up Voltage Min.
Drop Out Voltage Ave.
Recommended Control Trans.
Application Conditions
Standard
Auxiliary
Contact
Ratings
Additional
Auxiliary Contact
Relay Ratings
Weight
Current
Voltage
AC
DC
Current
Voltage
AC
DC
200A 400A 600A 1200A
MVC77U032A25
MVC77U032A50
MVC77U032A72
2.5KV
5.0KV
7.2KV
Rating
5.0KV
5.0KV
(AC Only)
MVC77U034A25
MVC77U034A50
MVC77U034A72
200A
50/60Hz
20 MVA Equivilent to 4.62 KA
40 MVA Equivilent to 4.62 KA
60 MVA Equivilent to 4.81 KA
57.8 KA - Peak, 38R - Fuse
6
4
2
6
.6 x 10
7VA AC .47A DC
600V Max. - 48V Min. NEMA A600 (AC) P600 (DC)
Make/Break 125/250V 138VA 300/600V 138VA
600V Max. - 48 Min. NEMA A600 (AC) Q300 (DC)
MVC77U036A25
MVC77U036A50
MVC77U036A72
400A
50/60Hz
400 MVA 45.7 KA RMS
38R max. fuse size
7
5
2.6
300/Hr
6
.40 x 10
.75 x 10
20KV 1 min.
1.2 x 50 us
120/240V 50/60Hz AC
+10-15%
650VA/45MS
90 MS at 60Hz
40 MS at 60 Hz
102V or less
70% or less
300VA
Continuous AC/DC 10A/5A
Make/Break 7200VA/720VA
Continuous AC/DC 10A/2.5A
Make/Break 7200VA/720VA
Make/Break 125/250V/69VA
48 lbs.
60KV
.9A
600A
50/60Hz
.250 x 10
6
SVC77U031225
SVC77U031250
SVC77U031272
800/1200A
50/60Hz
--------
--------
--------
--------
-------9
6
3
6
.250 x 10
125/250V DC
+10-20%
1300VA/45MS
14VA AC .924A DC
600VA
A
12
9
6
6
96 lbs.
Accessories & Options:
1. 2, 4, & 5 Pole contactors, consult factory.
2. Mechanically interlocked contactors available, page A41.
3. Medium voltage starters available in non-drawout
designs in NEMA 12 & 3 enclosures, consult factory.
4. Terminal Lug Kits, page A36.
A43
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