Eaton NOVA STS-15 - Ratings and Specifications; Check Recloser Ratings Prior to Installation; Table 1. Voltage Ratings; Table 2. Current Ratings

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NOVA™ STS Single-Tank, Triple-Single, Electronically Controlled Recloser
INSTALLATION AND OPERATION INSTRUCTIONS MN280046EN May 2016
Ratings and specifications
Check recloser ratings prior to installation
The recloser must be applied within its specified ratings.
Check data plate ratings and compare with the system
characteristics at the point of application prior to installation.
Tables 1-5 list the ratings and specifications for the NOVA
STS single-tank, triple-single recloser.
Table 1. Voltage ratings
Description 15 kV 15 kV 27 kV 27 kV 38 kV
Maximum voltage 15.5 kV 15.5 kV 27.0 kV 27.0 kV 38.0 kV
Rated basic impulse level 110.0 kV 125.0 kV 125.0 kV 150.0 kV 170.0 kV
Radio noise limit (µv) 100 @ 9.4 kV 100 @ 9.4 kV 100 @ 16.4 kV 100 @ 16.4 kV 100 @ 23.0 kV
Power frequency withstand, dry 50 kV 50 kV 60 kV 60 kV 70 kV
Power frequency withstand, wet 45 kV 45 kV 50 kV 50 kV 60 kV
Table 2. Current ratings
Description 15 kV 15 kV 27 kV 27 kV 38 kV
Rated Continuous Current 630 A* 630 A* 630 A* 630 A* 630 A*
Short Circuit Current, Symmetrical 12.5 kA** 12.5 kA** 12.5 kA** 12.5 kA** 12.5 kA
Making Current, Asymmetrical Peak 32.0 kA 32.0 kA 32.0 kA 32.0 kA 32.0 kA
Making Current, Asymmetrical rms 20.0 kA 20.0 kA 20.0 kA 20.0 kA 20.0 kA
* 800 A accessory is also available.
** 16.0 kA option is also available. (Making current is 41.0 kA Asymmetrical Peak and 25.0 kA Asymmetrical rms.)
Table 3. Mechanical ratings
Description 15 kV 15 kV 27 kV 27 kV 38 kV
Min. Mechanical/Electrical Operations Without Maintenance (C-O) 10,000 10,000 10,000 10,000 10,000
Mass (Weight) - kg (lbs) 130 (288) 133 (294) 133 (294) 138 (305) 138 (305)
Mass (Weight) with Pole Mounting Hanger 183 (403) 186 (409) 186 (409) 191 (420) 191 (420)
Table 4. Duty cycle
Percent maximum circuit interrupting rating Minimum X/R ratio Number of unit operations at 12.5 kA Number of unit operations at 16.0 kA
15-20 4 88 44
45-55 8 112 56
90-100 17* 32 16
Total 232 Total 116
*Value shown for 60 Hz.
Table 5. Power requirements
Voltage
Normal current
Duration
Recommended power
Heaters Heaters
120 Vac 0.45 A Continuous 54 VA
240 Vac 0.24 A Continuous 57.6 VA