OPEN FRAME & ENCLOSED PB271 Series 1 0 0 - 1 5 0 W AT T S D C / D C S I N G L E O U T P U T R A I LW AY Features • • • • • • • • • Rugged DC/DC converter for railway applications 45-154Vdc input / 12 or 24Vdc output. High temperature operation, no cooling fan. Up 60°C ambient with full load, derate up to 90°C. Shock & vibration protection (potted). Overvoltage, short circuit, over-temperature, input transients & reverse polarity protection. Complies with EN50121-3-2: 2000. Output terminal, available in screw, cage clampor phoenix terminals. Designed & manufactured in Australia. Specifications STANDARDS INPUT Voltage 45-154Vdc Current 4.2A Isolation Input to chassis: 2121Vdc, 1 min. Input to output: 4242Vdc, 1 min. Output to chassis: 707Vdc, 1 min. Reverse voltage protection Indefinite, series blocking diode on input. OUTPUT Safety standards Complies with AS/NZS60950:2000 C-tick AS/NZS CISPR11 Group 1, Class A EMC standards Designed to comply with EN50121-3-2: 2000 MECHANICAL General Chassis mount enclosure Input & output connection -S: 4 ways screw T/B 20A/300V suitable for up to 4mm² wire -C: 5 ways cage clamp T/B 20A/300V suitable for up to 4mm² wire -P: 4 ways pluggable T/B 20A /300V suitable for up to 4mm² wire Voltage See Table Current See Table Power 100-150W Ground Terminal M4x12 stud Ripple & noise 30mV p-p Length 290mm Line regulation 0.5% of Vnom Width Load regulation 12Vout = 3% Vnom 24Vout = 1.5% Vnom Height Overvoltage protection 130% of Vnom, manual restart required. Overcurrent protection 110% of Inom, auto recovery. Short circuit protection Indefinite, auto recovery. Over temperature protection 110°C, auto recovery. Efficiency 85% at full load. Operating Temperature -25 – 60°C, derate to 90°C, consult sales Relative Humidity 5 – 90% (non-condensing) Cooling Natural convection -S: 69mm -C: 73mm -P: 51mm Weight (unpacked) 1.9kgs (without heatsinks) 2.4kgs (with heatsinks) PB271 Ordering information PB271 1 ENVIRONMENTAL 80mm (without heatsinks) 135mm (with heatsinks) _ 12 2 S 3 _ H 4 1. Series name 2. Output voltage -12 -24 3. Output connection -S (Screw terminal block) -C (Cage clamp terminal block) -P (Pluggable terminal block) 4. Optional - Heatsinks Your dependable power partner – www.powerbox.com.au 111 OPEN FRAME & ENCLOSED PB271 Series 1 5 0 W AT T S D C / D C S I N G L E R A I LW AY Technical Illustrations Right Side View Right Side View 112