Features 30-50W isolated output Efficiency to 89% Fixed switching frequency 12:1 input range Regulated outputs Remote On/Off Low no load power consumption Over temperature protection Over voltage/current protection Continuous short circuit protection Quarter brick size meet industrial standard CE mark meets 2014/30/EU UL60950-1 2nd (basic insulation) approval Meet EN50155 with external circuits Shock & vibration meets EN50155 (EN61373) Fire & smoke meet EN45545-2 5000m operating altitude Input Input voltage range 72V 14-160V Input surge voltage (100ms max) 200VDC max Under voltage lockout Power up 13.6V Positive logic remote On/Off 4, 5) Input filter PI Type. Transient response <250ps (25% step load change). External trim adj. range -20%,+10%. Ripple & noise3) 40mV RMS, 100mV pk-pk max, 20MHz BW. Temperature coefficient ±0.02%/°C. Short circuit protection Continuous. Line regulation1) ±0.2% max. Over voltage protection 115-140%, trip range, % Vo nom. Current limit 110% -220% nominal output. POWERBOX ndustrial Line PQB50U-72S Series 30-50W 12:1 Single Output DC/DC Converter Environmental Operating case temp. -40°C to +100°C. Thermal shutdown Case temp. 110°C typ. General Efficiency See table Case material Aluminum baseplate with plastic case. Standards Safety standards UL60950-1 2nd (basic insulation).

POWERBOX ndustrial Line PQB50U-72S Series 30-50W 12:1 Single Output DC/DC Converter Model Input Output Output Current Input Current Efficiency Capacitor Number Voltage Voltage Min Max No Load Full Load 1) 2) Load Max Note: 1. Nominal input voltage 72VDC 2. Measured at 110Vin. CASE QB All Dimensions In Inches(mm) Tolerances Inches: X.XX= j 0302 , X.XXX= j 03010 Millimeters: X.X= j 035 , X.XX=j 03.25