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Proven Materialsand Construction
BP Solars quarter-century of fieldexperience shows in every
aspect ofthis modules construction andmaterials:
36 monocrystalline silicon solarcells configured as one
36-cellstring (bypass diodes areincluded);
Cells are laminated betweensheets of ethylene vinyl acetate(EVA
) and high-transmissivitylow-iron 3mm tempered glass;
Frame strength exceeds require-ments of certifying agencies.
Output OptionsThe BP 275 is offered with two typesof junction
box.
BP 275U output is via our Type Ajunction box. This junction box
israintight (IP54 rated) and acceptsPG 13.5 or 1/2" nominal conduit
orcable fittings. Its volume (411cc, 25cubic inches) and 6-terminal
connec-tion block enable most system arrayconnections (putting
modules inseries or parallel) to be made right inthe junction box.
O ptions include:
oversize terminal block whichaccepts conductors up to 25mm 2
(AWG #4); standard terminalsaccept up to 6mm 2 (AW G #10);
Solarstate charge regulator.
BP 275H output is via our Type Bjunction box, which is raintight
(I P65rated) and features a convenient flip
screw-tight lid. It is equipped with aversatile 5-terminal
Euro-styleconnection block with the samewiring capabilities as the
Type Ajunction box. Two cable fittings thataccept cable with a
diameter between6 -12mm are included with each BP275H module.
Quality and SafetyBoth modules are manufactured inISO
9001-certified factories, certifiedby T V R heinland as Class
II
equipment, and compliant with therequirements of IEC 61215,
including: repetitive cycling between -40C
and 85C at 85% relative humidity; simulated impact of 25mm
(one-
inch) hail at terminal velocity; a damp heat test, consisting
of
1000 hours of exposure to 85Cand 85% relative humidity;
a hot-spot test, which deter-mines a modules ability totolerate
localized shadowing(which can cause reverse-biasedoperation and
localized heating);
static loading, front and back, of2400 pascals (50 psf);
frontloading (e.g. snow) of 5400pascals (113 psf).
The B P 275U and BP 275H are listedby U nderwriters Laboratories
forelectrical and fire safety (Class C firerating). The BP 275U is
approved byFactory M utual Research for applica-tions in N EC Class
1, D ivision 2,G roups C & D hazardous locations.
Limited Warranties Power output for 25 years;
Freedom from defects in materialsand workmanship for 2
years.
See our website or your local represen-tative for full terms of
these warranties.
75-Watt MonocrystallinePhotovoltaic Module
BP 275
01-3002-2 3/02
BP 275 PV modules provide cost-effective photovoltaic power for
generaluse, operating DC loads directly or, in an inverter-equipped
system, ACloads. Its features include the strongest frame in the
industry, time-tested
monocrystalline silicon solar cells, and a high-capacity
multipurposejunction box. With 75 watts of nominal maximum power,
the BP 275 iswell-suited to utility grid-connected building facades
and roof systems,telecommunication systems, pumping and irrigation,
cathodic protection,remote villages and homes, and land-based
navigation aids. Its 36 series-connected cells charge 12V batteries
efficiently in virtually any climate.
It is available as the BP 275U and 275H, with two types of
junction box asdescribed below.
BP 275
Clear-AnodizedUniversal Frame
2002 BP Solar G lobal M arketing
TV
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Electrical Characteristics1
BP 275 BP 2704
Maximum power (Pmax)2 75W 70W
Voltage at Pmax (Vmp) 17.0V 17.0VCurrent at Pmax (Imp) 4.45A
4.16A
Warranted minimum Pmax 70W 65W
Short-circuit current (Isc) 4.75A 4.48A
Open-circuit voltage (Voc) 21.4V 21.4V
Temperature coefficient of Isc (0.0650.015)%/C
Temperature coefficient of voltage -(8010)mV/C
Temperature coefficient of power -(0.50.05)%/C
NOCT3 472C
Maximum system voltage 600V (U.S. NEC rating)1000V (TV Rheinland
rating)
Maximum series fuse rating 20A
Notes
1. These data represent the performance of typical BP 270 andBP
275 modules as measured at their output terminations. T hedata are
based on measurements made in accordance withAST M E1036 corrected
to SR C (S tandard Reporting Conditions,also known as STC or
Standard Test Conditions), which are: illumination of 1 kW /m2 (1
sun) at spectral distribution of A M
1.5 (A ST M E892 global spectral irradiance); cell temperature
of 25C.
2. D uring the stabilization process which occurs during the
firstfew months of deployment, module power may
decreaseapproximately 3% from typical Pmax.
3. The cells in an illuminated module operate hotter than
theambient temperature. NO CT (N ominal O perating CellTemperature)
is an indicator of this temperature differential, andis the cell
temperature under Standard O perating Conditions:ambient
temperature of 20C, solar irradiation of 0.8 k W/m2, andwind speed
of 1m/s.
4. The power of solar cells varies in the normal course
ofproduction; the BP 270 is assembled using cells of slightlylower
power than the BP 275.
BP 275 I-V Curves
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
Voltage (V)
Current(A)
0 5 10 15 20 25
