Technical data

Technical data
24
Control voltages, ANSI C37.06 Close coil Trip coil Spring charging motor
Nominal
Range Run (avg.) Inrush (peak) Charging
Close Trip A
1
A
1,3
A A Seconds
48 Vdc 38 - 56 28 - 56 11.4 11.4/30 8 25 10
125 Vdc 100 - 140 70 - 140 2.1 4.8/7.4 4 18 10
250 Vdc 200 - 280 140 - 280 2.1 4.2/9.6 2 10 10
120 Vac 104 - 127 ---- 2.0 ----
2
6 ---- 10
240 Vac 208 - 254 ---- 2.0 ----
2
3 ---- 10
Footnotes:
1.
Current at nominal voltage.
2.
Capacitor trip.
3.
Value preceding slash (/) is the current for the standard trip
coil with standard rated interrupting time. Value following
slash (/) is the current for optional trip coil with three-cycle
interrupting time.
4.
---- means this selection not available in this voltage.
Footnotes:
1.
Two contacts in series.
2.
All switch contacts are non-convertible.
Type switch Continuous current
A
Control circuit voltage
120 Vac 240 Vac 48 Vdc 125 Vdc 250 Vdc
Non-inductive
Circuit
breaker
10 10 5 10/30
1
9.6 4.8
TOC 15 15 10 0.5 0.5 0.2
MOC 20 15 10 10 10 5
Inductive
Circuit
breaker
10 6 3 10 6 3
TOC 15 15 10 0.5 0.5 0.2
MOC 20 15 10 10 10 5
Voltage class Ratio Accuracy class at 120 V sec. VA thermal
rating
( 55
o
C amb)
W, X, Y, Z ZZ
38 kV
one bushing
20,125/115 0.3 1.2 1,000
38 kV
two bushings
24,000/120
27,600/115
34,500/115
0.3 1.2 1,000
Table 3: Circuit breaker control data
4
Table 4: Interrupting capacity auxiliary switch contacts
2
Table 5: VTs
Figure 27: Type SGM38 assembled aisle (optional
fluorescent lamp fixtures and insulated aisle shown)