Table 1-2. Usg-A Lightning Arrestor Specifications - Hitachi SM 6145 Installation Operation & Maintenance

Part No.
USSP Type
N451552-
0529 31 AC Power
0532 21 Track Circuit
0535 20 Track Circuit
Part No.
N4551552-
-0101
-0201
-0401
Copyright
STS USASecondary Surge Suppressors USSP)
Coil
Maximum Circuit Inductance
(uH)
240 VAC/20A 8
63 VDC/50A 5
44 VDC/50A 4
Table 1-2. USG-A Lightning Arrestor Specifications
Operating
Voltage
75-200 VDC
32 VDC, 25 VAC
50-150 VAC (60 Hz)
500-1300 VDC
250 VDC, 175 VAC
350-950 VAC (60 Hz)
140 VAC NA
SM 6145, Rev. 23, March 2019
Capacitor Secondary Suppression
None 275 VAC Zener Transient Suppressor
None 63.2 V Zener Transient Suppressor
None 44 V Zener Transient Suppressor
Firing
Resistance
Voltage
3
10 ohms @ 32 VDC
9
10 ohms @ 100 VDC
3
5 x 10
1-5
Arrestors
Line (2)
Low Voltage (1)
High Voltage (2)
None
ohms @ 120 VAC