key features: ? 120w output power ? din rail mountable ? selectable ac input ? ul 508 approved ? safety approved ? 12, 24 & 48 vdc outputs ? cond./rad. emi class b ? >136 kh mtbf ? low cost! DR-120 low cost, industrial 120w, din rail mount ac/dc power supplies series micropower direct 232 tosca drive stoughton, ma 02072 usa t: (781) 344-8226 f: (781) 344-8481 e: sales@micropowerdirect.com w: www.micropowerdirect.com rohs compliant input parameter conditions min. typ. max. units input voltage range ac input selected by switch on front panel 88 132 vac 176 264 248 370 vdc input frequency range 47 63 hz inrush current 230 vac, cold start 40 a 115 vac, cold start 20 leakage current 240 vac 3.5 ma output parameter conditions min. typ. max. units output voltage tolerance note 1 1.0 % voltage adjustment range 12 vdc output 12 14 vdc 24 vdc output 24 28 48 vdc output 48 53 line regulation 0.5 % load regulation iout = 10% to 100% 1.0 % set up time at full load 500 msec rise time at full load 70 msec hold time 230 vac, full load 36 msec 115 vac, full load 32 ripple & noise (note 2) 12 vdc output 80 mv pk-pk 24 vdc output 80 48 vdc output 100 output power protection note 3 105 150 % over voltage protection (note 4) 12 vdc output 15 16.5 vdc 24 vdc output 29 33 48 vdc output 58 65 over temperature protection (note 5) 12 vdc output 80 85 90 oc 24 & 48 vdc output 85 90 95 temperature coef? cient 0oc to 50oc 0.03 %/oc switching frequency fixed 55 khz general parameter conditions min. typ. max. units isolation voltage input - output 3,000 vac input - fg (frame ground) 1,500 output - fg (frame ground) 500 isolation resistance (note 6) 500 vdc 100 m environmental parameter conditions min. typ. max. units operating temperature range ambient -10 +25 +60 oc storage temperature range -20 +85 oc operating humidity rh, non-condensing 20 90 % storage humidity rh, non-condensing 10 95 % vibration 10 ~ 500 hz; 2g 10 min./1 cycle; x, y, z axis each 1 hour physical case size 2.60 x 4.93 x 3.94 inches (65.5 x 125.5 x 100.0 mm) case material aluminum connection screw terminal weight 28 oz (0.79 kg) reliability speci? cations parameter conditions min. typ. max. units mtbf mil hdbk 217f, 25oc, gnd benign 136.8 khours safety standards ul 508, ul 60950, en 60950-1 safety approvals ul, cul, tuv emi compliance compliance to en55011, en55022 (cispr22) class b harmonic current compliance compliance to en6100-3-2,-3 ems immunity compliance en6100-4-2,3,4,5,6,8,11; env50204;en6100-6-2(en50082-2) heavy ind. level, criteria a new industrial supplies!! electrical speci? cations speci? cations typical @ +25c, nominal input voltage & rated output current, unless otherwise noted. speci? cations subject to change without notice.
model selection guide mechanical dimensions mechanical notes: ? all dimensions are typical in inch es (mm) ? tolerance x.xx = 0.01 (0.25) notes: 1. output voltage tolerance includes set-up tolerance, line regulation and load regulation. for the 12v output model, tolerance is 2.0%. 2. ripple & noise is measured using equipment with 20 mhz of bandwidth. connection to the unit under test is made with a 12 inch length of twisted pair wires terminated with a set of 1.0 f & 4.7 f capacitors connected in parallel. 3. overload protection is foldback current limiting. the unit recovers auto- matically when the fault is removed. 4. over voltage protection is a clamp type. the power to the unit must be manually reset to recover. 5. over temperature protection shuts down the output. the unit recovers automatically when the temperature goes down. the thermal detector is mounted on the heat sink of the power semiconductor. 6. isolation resistance is given for input/output; input/fg and output/fg. 7. to mount the unit to the din rail, tilt the unit rearwards from the top, ? tting the mount over the top of the rail. press back on the bottom front of the unit until it locks in place on the rail. to remove the unit from the rail, pull the removal clip at the bottom rear of the unit downward with a screw driver. with the clip down, lift up on the unit from the bottom front until it clears the rail. before installation or removal all wiring should be disconnected and the main power to the system shut off. 8. when wiring the supply, all lines should be as thick and short as possible. awg 14 wire is recommended for the DR-120 series. 9. the units should be mounted so they are vertically orientated. air ? ow (if it is provided) would optimally ? ow from the bottom to the top of the unit. 10. it is recommended that a fuse be used on the input of a power supply for protection. see the table above for the correct rating. terminal connections - tb1 model number rated power (w) input output ef? ciency (%, typ) fuse rating slow-blow (a) voltage (vac) current (a) voltage (vdc) current (a) max) current (a) range range 115 vac 230 vac DR-120-12 120 88 - 132 / 176 - 264 2.6 1.6 12 10.0 0 ~ 10.0 80 5.0 DR-120-24 120 88 - 132 / 176 - 264 2.6 1.6 24 5.0 0 ~ 5.0 84 5.0 DR-120-48 120 88 - 132 / 176 - 264 2.6 1.6 48 2.5 0 ~ 2.5 85 5.0 pin function 1 frame ground (fg) 2 ac/neutral (dc+) 3 ac/live (dc-) micropower direct www.micropowerdirect.com 232 tosca drive stoughton, ma 02072 ? tel: (781) 344-8226 ? fax: (781) 344-8481 ? e-mail: sales@micropowerdirect.com terminal connections - tb2 pin function 1,2 dc output (+v) 3,4 dc output (-v) derating curve - output power vs ambient temperature static characteristics (24 vout)
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