UPS Specifications
40
6.4.1 Battery Manufacturers and ModelsEither of two manufacturers’ batteries will be installed in the NX 10-30 kVA 208V as shipped. Below
are the battery makers and the models they supply.
6.4.2 Input Rectifier6.4.3 DC Intermediate CircuitTable 11 Approved batteries
Battery Manufacturer Models Supplied
Enersys Yuasa NPX-80FR NPX-100FR NPX-150FR
C&D Dynasty UPS12-100MR UPS12-140MR -
Table 12 Rectifier input power
Rated Power 10kVA 15kVA 20kVA 30kVA
Rated Voltage, VAC 120/208
Supply 3-phase, 4-wire plus ground
Input Voltage Tolerance, VAC (without derating) 166-239
Frequency, Hz 50 / 60
Input Frequency Tolerance %±10
Power Factor ≤ 0.99 at full load
≤ 0.95 at 50% load
Harmonic Current Less than 4% at full rated UPS output load
Input Current,1 Nominal, A 28 42 56 83
Output Current, Nominal, A 28 42 56 83
Notes:
1. Overload capacity of input current: 100% Imax <I<125% Imax:
125% Imax <I<150% Imax:
I>150%:
10 min.
1 min.
Limits input current immediately
Table 13 DC intermediate circuit
Rated Power 10kVA 15kVA 20kVA 30kVA
Recommended number of lead-acid batteries Number of batteries is 24 jars (12V per jar), or 144 cells (2V per
cell) for VRLA. The unit is shipped with a nominal voltage of
288VDC.
Recommended float charge voltage 2.27VDC*
Recommended boost charge voltage 2.3VDC*
Recommended end of discharge voltage 1.65-1.8 VDC
Maximum recharge battery current, A 7.5 7.5 15 15
Maximum boost charge duration, min.* 1440
Boost-float threshold current, A* 0.1 C default
Temperature voltage compensation, mV/°C* 3
Ripple voltage superimposed % ≤ 1
* Set by configuration software and based on usage of VLRA batteries.