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technical d at asheet chrome din rail power supply 24v 10w 1 phase (class ii & nec class 2) / drc - 24v10w1az all parameters are specified at 25 c ambient unless otherwise noted. www. deltapsu .com ( j anuary 201 4 , rev. 0 0) 1 highligh ts & features ? protection class ii, d ouble isolation (no earth connection is required) ? universal ac input voltage without power de - rating ? efficiency > 80.0% @ 115vac & 230vac ? nec class 2 / limited power source (lps) certified ? overvoltage / overcurrent / over temperature protections ? international safety approvals to ite and industrial standard safety standards cb certified for worldwide use model number: drc - 24v10w 1az unit weight : 0. 065 kg dimensions (l x w x d): 91 x 18 x 55.6 mm general description the drc - 24v1 0w1az is part of the c hrome din rail power supply series, which is designed for use in compact cabinets for home automations and the food and beverage industry. delta?s chrome din rail power supply series offers double isolated input. thi s means that no earth connection is required thus resul ting in low leakage current. this product provides a universal input voltage range of 90- 264vac, and a wide temperature range of -2 5 c to 7 1 c. the chrome series is certified to safety standard according to iec/en/ul 60950 - 1 information technology equipmen t (ite) and ul 508 industrial control equipment (ice). the series is also fully compliant with rohs directive 2011/65/eu for environmental protection. nec class 2 and limited power source (lps) approvals a re available for this product. model information chrome din rail power supply model number input v oltage range output v oltage output cur r ent drc - 24v10 w1az 90- 264v ac (12 5 - 375vdc) 24vdc 0.42a model numbering dr c ? 24v 10 w 1 a z din rail isolation class ii power supply output voltage output power single phase chrome series plastic case
technical d at asheet chrome din rail power supply 24v 10w 1 phase (class ii & nec class 2) / drc - 24v10w1az all parameters are specified at 25 c ambient unless otherwise noted. www. deltapsu .com ( j anuary 201 4 , rev. 0 0) 2 specifications input ratings / characteristics nominal input v oltage 100- 240v ac input v oltage range 90- 264v ac nominal input f r equency 50- 60hz input f r equency range 47- 63hz nominal dc input voltage * 125 - 375vdc input cur r ent < 0.30a @ 1 15 vac, < 0.20a @ 2 3 0vac ef ficiency at 100% load > 8 0 .0 % @ 1 15 vac & 2 3 0 vac max inrush cur r ent < 15 a @ 115vac, < 30 a @ 230vac power factor conform to en61000 -3 - 2 leakage cur r ent < 0.25 ma @ 240vac * dc input voltage is not included in the ul approval. additional testing might be necessary. output ratings / characteristics nominal output voltage 24vdc output voltage tolerance 2 % (initial set point tolerance from factory ) output current 0.42a output power 10w line regulation < 1 % typ. (@ 90-2 64 vac , 100% load ) load regulation < 2 % typ. (@ 90-2 64 vac, 100% load ) residual ripple / pard (20mhz) < 50mvpp / 15 0mvpp rise time < 1 00ms @ nominal input (100% load ) start - up time < 3 , 000ms @ nominal input (100% load ) hold - up time > 1 0ms @ 115vac, > 30 ms @ 230vac (100% load ) dynamic response (overshoot & undershoot o/p voltage) 5% @ 10- 100% load start - up with capacitive loads 3 ,000f max mechanical case cover plastic dimensions (l x w x d) 91 x 18 x 55.6 mm unit weight 0. 065 kg indicator green led (dc ok) cooling system convection terminal input m4 x 2 pins (rated 300v/ 16a ) output m4 x 2 pins (rated 300v/ 16a ) wire awg 26 - 12 mounting rail standard ts35 din rail in accordance with en60715
technical d at asheet chrome din rail power supply 24v 10w 1 phase (class ii & nec class 2) / drc - 24v10w1az all parameters are specified at 25 c ambient unless otherwise noted. www. deltapsu .com ( j anuary 201 4 , rev. 0 0) 3 environment surrounding air temperature operating -2 5 c to + 7 1 c storage - 25c to + 85c power de - rating > 5 5 c de - rate power by 2.5% / c operating humidity < 95 % rh (non - condensing) operating altitude 2 ,000 meters shock test (operating) iec 60068 -2 - 27, half sine wave : 4g for a duration of 22ms, 3 shocks for each 3 direction s , 9 times in total vibration (operating) iec 60068 -2 - 6, sine wave : 10 - 500hz @ 19.6m/s2 ( 2g peak); 10 min per cycle, 60 min for all x, y, z directions pollution degree 2 protections overvoltage < 3 4.8 v, selv output, latch - off mode overload / overcurrent > 1 02~ 108% of rated load current, fold f orward m ode (c urrent r ise s , voltage drops) over temperature > 75 c surrounding air temperature @ 100% load, latch - off mode short circuit hicc - up mode, non - latching (auto - recovery when the fault is removed) degree of protection ip 20 protection against shock class i i (no pe* connection is required) *pe: primary earth reliability data mtbf > 5 00,000 hrs. as per telcordia sr - 332 expected cap life time 10 years (115vac & 230vac , 50% load @ 40c )
technical d at asheet chrome din rail power supply 24v 10w 1 phase (class ii & nec class 2) / drc - 24v10w1az all parameters are specified at 25 c ambient unless otherwise noted. www. deltapsu .com ( j anuary 201 4 , rev. 0 0) 4 safety standards / directives electrical safety tuv bauart to en60950 - 1, ul/cul recognized to ul60950 -1 and csa c22.2 no. 60950 - 1, cb scheme to iec60950 - 1 , limited power source (lps) industrial control equipment ul/cul listed to ul508 and csa c22.2 no. 107.1 - 01 class 2 power supply ul/cul recognized to ul60950 - 1, csa c22.2 no. 60950 -1 ce in conformance with emc directive 2004/108/ec and low voltage directive 2006/95/ec material and parts rohs directive 2011/65/eu compliant galvanic isolation input to output 3 .0 kvac emc emc / emissions cispr22, en55022, fcc title 47: class b immunity to electrostatic discharge iec 61000 -4 - 2 level 3 criteria a 1) air discharge: 8 kv contact discharge: 6 kv radiated field iec 61000 -4 - 3 level 3 criteria a 1) 80mhz - 1ghz, 10v/m with 1khz tone / 80% modulation electrical fast transient / burst iec 61000 -4 - 4 level 3 criteria a 1) 2kv surge iec 610 00 -4 - 5 level 3 criteria a 1) common mode 2) : 2kv differential mode 3) : 1 kv conducted iec 61000 -4 - 6 level 3 criteria a 1) 150khz - 80mhz, 10vrms power frequency magnetic fields iec 61000 -4 - 8 criteria a 1) 1 a/meter voltage dips iec 61000 -4 - 11 > 95 % dip; 0.5 cycle ( 1 0ms) low energy pulse test (ring wave) iec 61000 -4 - 12 level 3 criteria a 1) differential mode 3) : 1kv 1) criteria a: normal performance within the specification limits 2) asymmetrical: common mode (line to earth) 3) symmetrical: differential mode (line to line)
technical d at asheet chrome din rail power supply 24v 10w 1 phase (class ii & nec class 2) / drc - 24v10w1az all parameters are specified at 25 c ambient unless otherwise noted. www. deltapsu .com ( j anuary 201 4 , rev. 0 0) 5 block diagram device description 1 ) input terminal block connector 2 ) output terminal block connector 3 ) dc ok control led (green) 4 ) universal mounting system
technical d at asheet chrome din rail power supply 24v 10w 1 phase (class ii & nec class 2) / drc - 24v10w1az all parameters are specified at 25 c ambient unless otherwise noted. www. deltapsu .com ( j anuary 201 4 , rev. 0 0) 6 dimensions l x w x d: 91 x 18 x 55.6 mm engineering data de - rating note 1 . power supply components may degrade, or be damaged, when the power supply is continuously used outside the shaded region, refer to the graph shown in fig. 1. 2 . if the output capacity is not reduced when th e surrounding air temperature > 55 c, the device may run into over temperature pro tection. when activated, the output voltage will go into latch - off mode and recoverable by ac power recycle. 3 . in order for the device to function in the manner intended, it is also necessary to keep a safety distance of 25 mm with adjacent units while the d evice is in operation. 4 . depending on the surrounding air temperature and output load delivered by the power supply, the device can be very hot! 5 . if the device has to be mounted in any other orientation, please do not hesitate to contact info@deltapsu.com for more details. fig. 1 de - rating for vertical mounting orientation > 55c de - rate power by 2.5% / c
technical d at asheet chrome din rail power supply 24v 10w 1 phase (class ii & nec class 2) / drc - 24v10w1az all parameters are specified at 25 c ambient unless otherwise noted. www. deltapsu .com ( j anuary 201 4 , rev. 0 0) 7 output d e - rating vs. i nput v oltage assembly & installation the power supply unit (psu) can be mounted on 35mm din rails in accordance with en60715. the device should be installed with input terminal block at the bottom. each device is delivered ready to install. mounting ? no output power de - rating across the entire input voltage range dismounting fig. 2.1 mounting snap on the din rail as shown in fig. 2.1: 1 . tilt the unit upwards and insert it onto the din rail. 2 . push downwards until stopped. 3 . press against the bottom front side for locking. 4 . shake the unit slightly to ensure that it is secured. fig. 2.2 dismounting to uninstall, pull or slide down the latch with screw driver as shown in fig. 2.2. then slide the power supply unit (psu) in the opposite direction, release the latch and pull out the power supply unit (psu) from the rail.
technical d at asheet chrome din rail power supply 24v 10w 1 phase (class ii & nec class 2) / drc - 24v10w1az all parameters are specified at 25 c ambient unless otherwise noted. www. deltapsu .com ( j anuary 201 4 , rev. 0 0) 8 safety instructions functions graph illustrating the start - up time, rise time, and hold- up time start - up time the time required for the output voltage to reach 90% of its set value, after the input voltage is applied. rise time the time required for the output voltage to change from 10% to 90% of its set value. hold - up time hold up time is the time when the ac input collapses and output voltage retains regulation for a certain period of time. the time required for the output to reach 9 0 % of its set value, aft er the input voltage is removed. ? always switch mains of input power off before connecting and disconnecting the input voltage to the unit. if mains are not turned off, there is risk of explosion / severe damage. ? to guarantee sufficient convection cooling, keep a distance of 5 0mm above and below the device as well as a lateral distance of 25 mm to other units. ? note that the enclosure of the device can become very hot depending on t he surrounding air temperature and load of the power supply. risk of burns! ? do not insert any objects into the unit. ? hazardous voltages may be present for up to 5 minutes after the input mains voltage is disconnected. do not touch the unit during this time . ? the power supplies unit should be installed in minimum ip54 rated enclosure. ? the power supplies are built in units and must be installed in a cabinet or room (condensation free environment and indoor location) that is relatively free of conductive contam inants.
technical d at asheet chrome din rail power supply 24v 10w 1 phase (class ii & nec class 2) / drc - 24v10w1az all parameters are specified at 25 c ambient unless otherwise noted. www. deltapsu .com ( j anuary 201 4 , rev. 0 0) 9 inrush current inrush current is the peak, instan taneous, input current measured and, occurs when the input voltage is first applied. for ac input voltages, the maximum peak value of inrush current will occur during the first half cycle of the applied ac voltage. this peak value decreases exponentially during subsequent cycles of ac voltage. dynamic response the power supply output voltage will remains within 5% of its steady stat e value, when subjected to a dynamic load from 10 to 100% of its rated current. overvoltage protection the power supply?s overvoltage circuit will be activated when its internal feedback circuit fails. the output voltage shall not exceed its specifications defined on page 3 under ?protections?. overload & overcurrent protections the power supply?s overl oad (olp) and over current (ocp) protections will be activated when output current is >102 ~108% of i o (max load). in such occurrence, the v o will start to droop and once the power supply has reached its maximum power limit, the protection is activated and the power supply will go into ?hiccup mode? (auto - recovery). the power supply will recover once the fault condition of the olp and ocp is removed and i o is back within the specifications. additionally, if the i o is > 102 ~108% for a prolong period of time (depending on the load), the over temperature protection (otp) will be activated due to high temperature on critical components. the power supply will then go into ?latch - off mode? until the psu cools down and the ac power is recy cled. over temperature protection as mentioned above, the power supply also has over temperature protection (otp). this is activated when the overload condition persists for an extended duration and the output current is below the overload trigger point but >100% load. in the event of a higher operating condition at 100% load, the power supply will run into otp when the surrounding air temperature is > 7 5 c . when activated, the output voltage will go into l atch - off mode until the component temperature cool s down and the ac power is recycled. short circuit protection the power supply?s output olp/ocp function also provides protection against short circuits. when a short circuit is applied, the output current will operate in ?hiccup mode?, as shown in the illustration in the olp/ocp section on this page. the power supply will return to normal operation after the short circuit is removed.
technical d at asheet chrome din rail power supply 24v 10w 1 phase (class ii & nec class 2) / drc - 24v10w1az all parameters are specified at 25 c ambient unless otherwise noted. www. deltapsu .com ( j anuary 201 4 , rev. 0 0) 10 operating mode ? redundancy operation in order to ensure proper redundancy operation for the power supply unit (psu), ensure that the output voltage difference bet ween the two units is kept at 0.45 ~ 0.50v for 24v supplies. follow simple steps given below to verify: step 1. measure output voltage of psu 1 and psu 2. if psu 1 is the master unit, then v o of psu 1 must be higher than psu 2. in order to set the output voltage, connect the power supply to 50% load and set the psu 1 and psu 2 output voltage. step 2. connect the right drr module, 20a as per the system requirement to the power supply units psu 1 and psu 2 at v in 1 & v in 2 respectively. step 3. connect the system load from v out . please note that output voltage v out from drr module will be = v o (output voltage of po wer supply) ? v drop * (in drr module). ? parallel operation these drr modules can also be used for parallel function in order to increase the output power by n+1 (e.g. 2.5a + 2.5a = 5a or 2.5a + 2.5a + 2.5a = 7.5a) or current sharing, and thus increasing the power supply and system r eliability. though the drc - 24v1 0w1az is not designed for current sharing, a good current sharing between two power supplies can be achieved by following simple steps as be low (refer to fig. 3 for the connection diagram). fig. 3 redundancy / parallel operation connection diagram step 1 . set output load condition for both supplies at 50% and measure the output voltages. step 2. adjust output voltages to the same level or within 25mv difference. step 3 . connect psu 1 and psu 2 with the drr - 20a module and measure at v in 1 & v in 2 to verify the voltage difference. ensure the voltages are within 25mv. step 4 . output voltage from drr module v out will be = v o (output voltage of power supply) ? v drop * (in drr module). *v drop will vary from 0.60v to 0.90v (typical 0.65v) depending on the load current and surrounding air temperature.
technical d at asheet chrome din rail power supply 24v 10w 1 phase (class ii & nec class 2) / drc - 24v10w1az all parameters are specified at 25 c ambient unless otherwise noted. www. deltapsu .com ( j anuary 201 4 , rev. 0 0) 11 others delta rohs compliant restriction of the usage of hazardous substances the european directive 2011/65/e u limits the maximum impurity level of homogeneous materials such as lead, mercury, cadmium, chrome, polybrominated flame retardants pbb and pbde for the use in electrical and electronic equipment. rohs is the abbreviation for ?restriction of the use of cer tain hazardous substances in electrical and electronic equipment?. this product conforms to this standard.
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