Lightning Impulse Withstand Voltage
Full Wave 1.2/50 µsec kV 110 150
Chopped wave 2 µsec
1
kV 142 194
Chopped wave 3 µsec
1
kV 126 172
Rated Making Current kA 20/25 20/25
Rated Normal Frequency cycles 60 60
Capacitance Switching
Overhead Line A 100 100
Isolated Current A 400 400
Back to Back A 400 400
Closing Time (max) ms 50 50
Trip Time (max) ms 37.4 37.4
Normal Operating Temperature Range
Standard °C -30 -30
Special °C -40 -40
Phase Spacing (Bushing Center to Center) in/mm 15.0/591 15.0/591
Contact Gap
1200A in/mm 0.28-0.35/7-9 0.59-0.63/15-16
2000A in/mm 0.59-0.63/15-16 0.59-0.63/15-16
External Creep
Standard in/mm 11/279.4 17/431.8
Special in/mm 17/431.8 26/660.4
External Strike to Ground
Standard in/mm 6/152.4 7.5/190.5
Special in/mm 7.5/190.5 10.5/266.7
Breaks per Phase — 1 1
Auxiliary Voltage VDC 48/125/250 48/125/250
VAC 115/230 115/230
Dual Trip Coils (mech. and elec. independent) — Optional Optional
Trip and Close Coil Rating VDC 48/125/250 48/125/250
VAC 115/230 115/230
Operating Mechanism - type GMI — Stored Energy Stored Energy
Interrupting Medium — Vacuum Vacuum
Emergency Trip — Standard Standard
Minimum Reclosing Time
3
sec 0.3 0.3
RIV 1000kHz µv less than 500 less than 650
Rated Duty Cycle — CO-15 sec-CO CO-15 sec-CO
O-0.35-CO-15 sec-CO O-0.3sec-15sec-CO
Seismic Withstand
Standard - SDV-4A (IEEE STD 693-1997) g Moderate (0.25) Moderate (0.25)
Optional - SDV-4A (IEEE STD 693-1997)
2
g High (0.50) High (0.50)
Appendix
Table A-6 Specifications
1 Breaker in closed position only. 2 Requires “X” bracing on circuit breaker legs.
3 User must supply external time delay to assure minimum reclose time interval of 0.3 seconds.
SDV-4A
Table A-5 Heater Data
Table A-4 Circuit Breaker Weights
Weight, lbs.(kg)
Breaker Type
Continuous Current, Amperes
1200 A 2000 A
2500 (1134)2400 (1089)
1. Thermostat controlled and set to turn off at 95°F.
2. Thermostat controlled and set to turn off at 10°F.
Location
Wattage
200
(1)
100
250
(2)
High Voltage Compartment
Control and Mechanism Compartment
Low Temperature (Special -40°C)
SDV-25.8 / SDV-27.6
SDV-15.5
UNIT
ITEM
44