your dependable power partner ? www.powerbox.com.au 113 open frame & enclosed pb261 series 200-500 watts dc/dc single output features ? rugged dc/dc converter for industrial applications ? 24 or 48vdc input / 12, 24 or 48vdc output ? 200 to 500w output. ? parallel operation to 2kw ? input reverse polarity protection ? input overvoltage and undervoltage lockout ? overtemperature protection ? adjustable output voltage ? dc ok alarm led and voltage-free contact ? low rf emissions specification input input voltage 24vdc (18-30vdc) 48vdc (36-60vdc) undervoltage lockout 24v: 17.2vdc 48v: 30vdc overvoltage lockout 24v: 37.8vdc 48v: 78.8vdc output output voltage see table voltage adjustment range 8% output current see table output power see table ripple & noise typ. see table bw=20mhz line regulation 0.2% typ. over input range load regulation 12 and 24v: 2% typ. 48v: 5% typ. overvoltage protection 12v: 15vmax. 24v: 29vmax. 48v: 58vmax. overcurrent protection 120% of rating typ. displays / alarms dc ok green led: on=ok voltage?free changeover contact (32v, 1a) environmental operating temperature 0 ? 40c relative humidity 5 ? 90% (non-condensing) cooling thermostatically controlled fan operating efficiency 79 ? 84% typ. load sharing 5% isolation in/out 4243vdc, 1 min. in/gnd 2121vdc, 1 min. out/gnd 707vdc, 1 min. overtemperature protection 100c typ. standards safety standards complies with as/nzs60950:2000 c-tick as/nzs cispr11 group 1, class a mechanical general chassis mount enclosure dimensions 247x176x70mm (lxwxh) input terminations 40a m4 screw terminals output terminations 40a m4 screw terminals alarm termination pluggable screw terminal blocks for 1.5 mm2 wire sync port (parallel operation) two rj-12 6/6 sockets selection table model number input output ripple & noise power pb261-2412e 18-30v 12v 16.7a 50mv 200w PB261-2424E 18-30v 24v 8.3a 45mv 200w pb261-2448e 18-30v 48v 4.2a 50mv 200w pb261-2412t 18-30v 12v 33.3a 30mv 400w pb261-2424t 18-30v 24v 16.7a 25mv 400w pb261-2448t 18-30v 48v 7.1a 25mv 340w pb261-4812s 36-60v 12v 20.8a 80mv 250w pb261-4824s 36-60v 24v 10.4a 50mv 250w pb261-4848e 36-60v 48v 4.6a 60mv 220w pb261-4812u 36-60v 12v 41.7a 40mv 500w pb261-4824u 36-60v 24v 20.8a 35mv 500w pb261-4848t 36-60v 48v 9.2a 25mv 440w
114 open frame & enclosed pb261 series 200-500 watts dc/dc single output technical illustrations terminations external view
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