Performance   BP 4175   BP 4180   BP 4185     BP4190 
Rated power (Pmax)    175W      180W      185W     190W
Module tolerance    +5/-3%
Nominal voltage     24V
Warranty    25years                    
Qualification test parameters
Temperature cycling range:   -40°C to +85°C 
Damp heat test:   85°C, 85% relative humidity
Front and rear static load test (e.g.: wind):    2,400 Pa (50psf)
Front load test (e.g.: snow):    5,400 Pa (113psf)
Hailstone impact test:    25mm ? (1 inch) at 23m/s (52mph)
Typical electrical characteristics    BP4175   BP4180      BP4185   BP4190
Rated power (Pmax)    175W    180W        185W   190W
Voltage at Pmax (Vmp)    35.4V   35.8V       36.0V   36.2V
Current at Pmax (Imp)   4.9A    5.0A        5.1A    5.2V
Short circuit current (Isc)    5.5A    5.6A         5.7A     5.8V
Open circuit voltage (Voc)   43.6V     43.6V       44.0V   44.2V
Temperature coefficient of Isc:    (0.065±0.015)%/ °C
Temperature coefficient of Voc:    - (160±20) mV/°C
Temperature coefficient of Pmax:- (0.5±0.05)%/ °C
NOCT :     47±2°C(Air 20°C; Sun 0.8kW/m2; wind 1m/s)
Maximum series fuse rating:    15A (T)
Maximum system voltage:600V (US NEC rating);1000V (VDE rating);1000V (IEC 61215 rating)