2
type vsa12, vsa12b, vsa16, vsa20, and vsa20a operation and installation instructions
MN280063EN May 2017
Specifications and ratings
A recloser will effectively interrupt fault currents only when
applied within its specified ratings. Check data plate ratings
and compare with the system characteristics at point of
application prior to installation.
table 2. Bushing Specifications
Description
Distance
Bushing creepage distance, mm (in)
VSA12, VSA12B, VSA16, VSA20
VSA20A
305 (12)
432 (17)
Arcing Distance, phase to ground, mm (in)
VSA12, VSA12B, VSA16, VSA20
VSA20A
191 (7.5)
197 (7.75)
Arcing Distance, phase to phase, mm (in)
VSA12, VSA12B, VSA16, VSA20
VSA20A
248 (9.75)
279 (11)
table 3. current ratings
Description
Rating
Continuous Current Rating, A
VSA12B
VSA12, VSA16, VSA20
VSA20A
600
800
1,200
Symmetric Interrupting Current, A
VSA12, VSA12B
VSA16
VSA20, VSA20A
12,000
16,000
20,000
Cable Charging Current, A
2
Magnetizing Current, A
VSA12, VSA12B, VSA16, VSA20
VSA20A
28
42
Three-Second Current, Symmetric, A
VSA12, VSA12B
VSA16
VSA20, VSA20A
12,000
16,000
20,000
Momentary Current, Asymmetric, A
VSA12, VSA12B
VSA16
VSA20, VSA20A
20,000
25,600
32,000
Capacitive Switching,
General Purpose, Isolated Bank, A
250
table 4. duty cycle
Percent of Maximum
Circuit Interrupting Rating
Maximum X/R
Ration
Number of Unit
Operations
15-20
45-55
90-100
4
8
16
88
112
32
Total 232
table 5. Electrical Specifications
Description
Trip Solenoid
Operating voltage, Vdc
Peak current, A
Actuation time, cycles
24
12.2
1.25
Close Solenoid
Operating voltage, Vdc
Peak current, A
Actuation time, cycles
24
15.5
1.5
Spring Charging Motor
Operating voltage, Vac
Voltage range, Vac
Maximum current, RMS, A
Steady state current, A
Motor running time, cycles
Standard
240
160-257
14
4.1
40
Accessory
120
90-127
18
9
40
Sensing Current Transformers
VSA12, VSA16
VSA20VSA20A
1000:1
2000:1
Maximum Arcing Time, cycles
1.0
Interrupting Time, cycles
2.5
table 6. Mechanical Specifications
Description
Operating Temperture, °C
Minimum
Maximum
VSA12, VSA12B, VSA16, VSA20 .
VSA20A
-30
+50
+40
Closing Mechanism
Spring Operated
Opening Mechanism
Spring Operated
Contact Gap, mm (in)
11 (7/16)
Close Contact Travel Time, cycles
5
Open Contact Travel Time, cycles.
5
Allowable Contact Erosion, mm (in)
3 (.125)
Opening Time, 24 Vdc solenoid,
Signal to contact part, m sec.
25
Closing Time, 24 Vdc solenoid,
Signal to contact make, m sec.
32
Mechanical Life
Open-Close, no load, operations
2,500
table 1. voltage ratings
Description
Ratings
Maximum Design Voltage, kV.
15.5
Nominal Operating Voltage, kV
2.4-14.4
Basic Insulation Level (BIL), kV
110
60 Hz Withstand Voltage, kV
Dry, one minute
Wet, ten seconds .
50
45
Max RIV at 1.0 MHz/9.41 kV, μV.
100