Manual

20
Rated electrical characteristics of Isc, Voc, are within ±10 percent of the indicated values and +5 / –0 % of Pmax (power measurement tolerance: ± 3 %), under
STC (standard test conditions) (irradiance of 1,000 W / m
2
, AM 1.5 spectrum, and a cell temperature of 25 °C (77 °F)). The guaranty conditions are specified elsewhere
in this manual.
Table 1. Electrical characteristics (at STC)
(*) The maximum series number of modules depends on the local conditions. These values are calculated under the condition of Voc at –40 °C.
Under normal conditions, a photovoltaic module is likely to experience conditions that produce more current and / or voltage than reported at Standard Test Condi-
tions. Accordingly, the values of I
sc and Voc marked on this module should be multiplied by a factor of 1.25 when determining component voltage ratings, conductor
capacities, fuse sizes and size of controls connected to the module output.
Application Class
This module is rated as “Application class A” according to IEC61730.
“Application class A” means:
General access, hazardous voltage, hazardous power applications
Modules rated for use in this application class may be used in systems operating at greater than 50 V DC or 240 W, where general contact access is anticipated.
Modules qualified as application class A in IEC 61730 are considered to meet the requirements for safety class II.
Fire Rating
This module is rated as “Fire safety class C” according to IEC61730.
Electrical output and thermal characteristics
Model name
Maximum
power
(Pmax)Tolerance
Open-
circuit
voltage (Voc)
Short-circuit
current (Isc)
Voltage at
point of max.
power (Vmpp)
Current at
point of max.
power (Impp)
Maximum
system
voltage
Over-
current
protection
Appli-
cation
class
Maximum series
configuration
(*)
ND-R240A2 240 W +5 % / –0 % 37.2 V 8.52 A 30.4 V 7.90 A 1,000 V 15 A A 21
ND-R235A2 235 W +5 % / –0 % 37.1 V 8.38 A 30.4 V 7.74 A 1,000 V 15 A A 21
ND-R230A2 230 W +5 % / –0 % 37.0 V 8.24 A 30.3 V 7.60 A 1,000 V 15 A A 21
ND-R225A2 225 W +5 % / –0 % 36.9 V 8.10 A 30.3 V 7.43 A 1,000 V 15 A A 21
ND-R220A2 220 W +5 % / –0 % 36.8 V 7.96 A 30.2 V 7.29 A 1,000 V 15 A A 21
ND-R215A2 215 W +5 % / –0 % 36.7 V 7.82 A 30.2 V 7.13 A 1,000 V 15 A A 21
ND-R210A2 210 W +5 % / –0 % 36.6 V 7.68 A 30.1 V 6.98 A 1,000 V 15 A A 22
ND-R250A5 250 W +5 % / –0 % 37.6 V 8.68 A 30.9 V 8.10 A 1,000 V 15 A A 21
ND-R245A5 245 W +5 % / –0 % 37.3 V 8.62 A 30.7 V 7.99 A 1,000 V 15 A A 21
ND-R240A5 240 W +5 % / –0 % 37.2 V 8.57 A 30.4 V 7.90 A 1,000 V 15 A A 21
ND-R235A5 235 W +5 % / –0 % 36.8 V 8.49 A 30.3 V 7.76 A
1,000 V 15 A A
21
ND-R230A5 230 W +5 % / –0 % 36.4 V 8.41 A 30.3 V 7.61 A
1,000 V 15 A A
22
ND-R225A5 225 W +5 % / –0 % 36.0 V 8.33 A 30.2 V 7.46 A 1,000 V 15 A A 22
ND-R220A5 220 W +5 % / –0 % 35.6 V 8.25 A 30.0 V 7.35 A 1,000 V 15 A A 22
ND-245R1J 245 W +5 % / –0 % 37.1 V 8.60 A 30.4 V 8.06 A
1,000 V 15 A A
21
ND-240R1J 240 W +5 % / –0 % 36.9 V 8.52 A 30.0 V 8.00 A
1,000 V 15 A A
21
ND-235R1J 235 W +5 % / –0 % 36.7 V 8.44 A 29.8 V 7.89 A 1,000 V 15 A A 21
ND-230R1J 230 W +5 % / –0 % 36.6 V 8.36 A 29.5 V 7.80 A 1,000 V 15 A A 22
ND-225R1J 225 W +5 % / –0 % 36.6 V 8.28 A 29.3 V 7.68 A
1,000 V 15 A A
22
ND-220R1J 220 W +5 % / –0 % 36.5 V 8.20 A 29.2 V 7.54 A
1,000 V 15 A A
22
ND-215R1J 215 W +5 % / –0 % 36.5 V 8.12 A 29.0 V 7.42 A 1,000 V 15 A A 22
ND-210R1J 210 W +5 % / –0 % 36.4 V 8.03 A 28.8 V 7.30 A 1,000 V 15 A A 22
NU-R250J5 250 W +5 % / –0 % 37.9 V 8.76 A 31.0 V 8.07 A 1,000 V 15 A A 21
NU-R245J5 245 W +5 % / –0 % 37.5 V 8.73 A 30.5 V 8.04 A 1,000 V 15 A A 21
NU-R240J5 240 W +5 % / –0 % 37.3
V 8.63 A 30.2 V 7.95 A
1,000 V 15 A A
21
NU-235R1H 235 W +5 % / –0 % 37.9 V 8.49 A 30.3 V 7.76 A
1,000 V 15 A A
21
NU-230R1H 230 W +5 % / –0 % 37.7 V 8.43 A 30.0 V 7.67 A 1,000 V 15 A A 21
NU-225R1H 225 W +5 % / –0 % 37.5 V 8.37 A 29.7 V 7.58 A 1,000 V 15 A A 21
NU-220R1H 220 W +5 % / –0 % 37.3 V 8.31 A 29.4 V 7.49 A 1,000 V 15 A A 21
INSTALLATION MANUAL – PHOTOVOLTAIC MODULES
Ver 9.2 E