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sep 09, 2005 revised to jul 17, 2006 page 1 of 12 www.power-one.com los, lor, lok4000 series data sheet din-rail mountable ac-dc (dc-dc) converters 15, 30, 50 watt ac-dc (dc-dc) converters convert simply description the convert simply front-end converters represent a family of 15, 30, and 50 watt din-rail mountable ac-dc converters for use as rectifiers or battery chargers. plastic casing, compact size, and high reliability make the los, lor, lok4000 series an excellent choice for space-critical applications, where a din-rail mountable ac-dc converter is required. the universal input range and a built-in input filter allow flexible operation in a wide variety of electronic equipment and enables worldwide connection to the mains. the converters are available as rectifiers with 12 v, 24 v, or 48 v single output and as battery chargers for 12 v, 24 v, or 48 v batteries. the output voltage of lok converters can be adjusted via the r input. safety approvals fully comply with worldwide requirements. applications typical applications are: powering building controls, factory automation, industrial controls, instrumentation, electromag- netic drives, fans, and other dc loads. universal input range 100 - 240 vac nominal additional dc input 90 - 250 v single output 5.1, 12, 24, or 48 vdc class i equipment safety according to iec/en 60950, ul 1950, and ul 508 2 1 lok 2 los/lor p r o du c t s e r v i c e p r odu c t i on m on i t o r e d t y p e t e s t e d 1 2 features ? rohs lead-solder-exempt compatible ? extremely compact design ? battery charger versions ? operating ambient temperature range ?10 to 50 c with convection cooling ? short-circuit and no-load proof table of contents page description ....................................................................... 1 model selection ............................................................... 2 functional description ..................................................... 3 electrical input data ......................................................... 3 electrical output data ...................................................... 4 auxiliary functions ........................................................... 6 electromagnetic compatibility (emc) .............................. 7 mechanical data .............................................................. 8 immunity to environmental conditions ............................. 8 safety and installation instructions .................................. 9 description of options .................................................... 11 ec declaration of conformity los/lor ........................ 12 page
sep 09, 2005 revised to jul 17, 2006 page 2 of 12 www.power-one.com los, lor, lok4000 series data sheet din-rail mountable ac-dc (dc-dc) converters part number description and product marking series 15 w .................................................... los 4 lok4 3 0 1 -2 r l d f k 30 w .................................................... lor 4 50 w .................................................... lok 4 output 5.1 v rectifier version ............................... 001 12 v rectifier version ................................ 301 24 v rectifier version ................................ 601 48 v rectifier version ................................ 801 12 - 15 v battery charger ......................... 140 24 - 30 v battery charger ......................... 240 48 - 60 v battery charger ......................... 740 other voltages or specs. ..................... 02 - 99 ambient temperature range t a : ?10 to 50c ................................................ -2 3 features and options: output voltage control input ........................ r 2 rectangular output characteristic ................ l 1 output voltage ok signal ............................ d 1 built-in second fuse (option) ........................ f 2 k system connector (option) ........................ k 1 battery chargers and lok4001-2rld 2 lok models only 3 up to 70 c with derating examples: lok4140-2rld: ac-dc converter, battery charger version, providing 12 - 15 v/3.6 a at the output lok4601-2r: ac-dc converter, rectifier version, providing 24 v/2 a, 48 w at the output model selection table 1: type survey output operating rated power 1 efficiency 5 model options 4 v o nom i o nom input voltage 1 t a = 50 c [vdc] [a] p o tot [w] typ [%] 5.1 5.2 26 70 lok4001-2rld 12 1.25 15 74 los4301-2 12 2.5 30 80 lor4301-2 12 4 85 - 264 vac 48 82 lok4301-2r 12 - 12.8 3 - 15 3.6 47 - 63 hz 49 82 lok4140-2rld f 2 , k 24 0.65 90 - 250 vdc 15 76 los4601-2 24 1.25 30 82 lor4601-2 24 2 48 82 lok4601-2r 24 - 25.7 3 - 30 1.8 49 82 lok4240-2rld 48 1 48 82 lok4801-2r 48 - 51.4 3 - 60 0.9 49 81 lok4740-2rld 1 linear derating to 85% of p o nom below v i = 105 vac, 110 vdc 2 lok types only 3 setting voltage v o set for battery chargers with r-input left open-circuit. 4 for minimum order quantities and lead times contact power-one. 5 efficiency at v i rated and i o nom
sep 09, 2005 revised to jul 17, 2006 page 3 of 12 www.power-one.com los, lor, lok4000 series data sheet din-rail mountable ac-dc (dc-dc) converters fig. 1 block diagram lok4301, lok4601 and 4801 (rectifier versions), all lor and all los. functional description the convert simply 15, 30, and 50 watt front-end modules are flyback converters with a fixed frequency of 100 khz (lok) or 130 khz (lor, los). the battery charger modules and the fig. 2 block diagram lok4140, lok4240 and lok4740 (battery charger versions) and lok4001- 2rld. lok4001-2rld have a rectangular v / i output characteristic. the rectifier modules have overload protection working in a hiccup mode. electrical input data general condition: t a = 25 c unless otherwise specified table 2: input data characteristics los lor lok unit v i rated rated input voltage range 100 - 240 100 - 240 100 - 240 vac v i nom nominal input voltage 230 230 230 v i operating input voltage range 85 - 264 85 - 264 85 - 264 90 - 250 90 - 250 90 - 250 vdc f i nominal line frequency 50 - 60 50 - 60 50 - 60 hz i i input current at 115/230 vac 1 0.3/0.15 0.52/0.26 0.8/0.4 a l i nl input current at 230 vac and no load 0.035 l inr max peak inrush current at v i = 230 v 2 18 18 19 1 at i o nom . 2 inrush current limitation by a 16 ? ntc resistor. switching device and control circuit line filter and rectifier l vo+ vo? r 03094 vo+ vo? n 1 3 4 5 6 7 8 ntc 2 opt. f switching device and control circuit line filter and rectifier l vo+ vo? r 03095 vo? n 2 1 3 5 6 7 ntc 8 d opt. f 4
sep 09, 2005 revised to jul 17, 2006 page 4 of 12 www.power-one.com los, lor, lok4000 series data sheet din-rail mountable ac-dc (dc-dc) converters electrical output data general conditions: t a = 25 c unless otherwise specified. r input not connected. table 3a: output data output lok4001-2rld los/lor/lok los/lor/lok lok4801-2r 4301-2(r) 4601-2(r) characteristics conditions min typ max min typ max min typ max min typ max unit v o output voltage v o nom v i nom, 0.5 i o nom 5.1 12 24 48 v v o setting tolerance r-input open-circuit 1.5 1.5 1.5 1.5 % v o adj adjustable voltage range units with feature r 4.5 - 5.5 10.8 - 13.2 21.6 - 26.4 43.2 - 52.8 v i o nom nominal output current v i min - v i max los - 1.25 0.65 - a lor - 2.5 1.25 - lok 5.2 4.0 2.0 1.0 v o output voltage noise v i nom , i o nom, 50 100 150 100 150 200 mv pp (bw = 20 m hz) iec 61200 static line/load regulation v i min - v i max, 1 1 1 1 i o = (0.1 - 1) i o nom % v o i dynamic load regulation v i nom , (0.1 0.9) i o nom 5 2 1.5 1 t r transient recovery time i o = (0.1 0.9) i o nom 44 44 ms t h hold-up time 115/230 vac 14/90 14/90 14/90 14/90 uo temper. coefficient of v o v i nom , i o nom 0.05 0.05 0.05 0.05 %/k f s switching frequency 100 100 1 100 1 100 khz 1 lor and los have 130 khz. table 3b: output data (battery charger models) output lok4140-2rld lok4240-2rld lok4740-2rld characteristics conditions min typ max min typ max min typ max unit v o output voltage v i nom , 0.5 i o nom 12.84 1 25.68 1 51.36 1 v r-input open-circuit v o adj adjustable voltage range 12.0 - 15.0 24.0 - 30.0 48.0 - 60.0 i o nom nominal output current v i min - v i max 3.6 1.8 0.9 a v o output voltage noise v i nom , i o nom 100 150 100 150 200 mv pp (bw = 20 mhz) iec 61204 static line/load regulation v i min - v i max 2 1 1 1 1 1 % i o = (0.1 - 1) i o nom v o i dynamic load regulation v i nom , (0.1 0.9) i o nom 2 1 1.5 1 1 1 t r transient recovery time i o = (0.1 0.9) i o nom 444 ms t h hold-up time 115/230 vac 14/90 14/90 14/90 uo temper. coefficient of v o v i nom , i o nom 0.05 1 0.05 1 0.05 1 %/k f s switching frequency 100 100 100 khz 1 r input left open-circuit.
sep 09, 2005 revised to jul 17, 2006 page 5 of 12 www.power-one.com los, lor, lok4000 series data sheet din-rail mountable ac-dc (dc-dc) converters thermal considerations if an ac-dc converter is located in free, quasi-stationary air (convection cooling) at the indicated maximum ambient temperature t a max (see table: temperature specifications ) and is operated at its nominal input voltage and output power, the temperature measured at the measuring point of case temperature t c (see mechanical data) will approach the indicated value t c max after the warm-up phase. however, the relationship between t a and t c depends heavily on the conditions of operation and integration into a system. the thermal conditions are influenced by input voltage, output current, airflow, temperature of surrounding components and surfaces. t a max is therefore, contrary to t c max , an indicative value only. the relation between the maximum allowed output power p o allowed and the temperature t a of the surrounding air is given in the figure below. the rates apply if the ac-dc converter is located in free, quasi-stationary air (convection cooling). note: sufficient forced cooling allows t a to be higher than the value given in the table if t c max according to the table is not exceeded. caution: the installer must ensure that under all operating conditions t c remains within the limits that are stated in the table temperature specifications . fig. 3 maximum allowed output power versus input voltage at t a 50c. for lok models. 50 75 150 125 100 175 200 300 0.5 1.0 p o allowed / p o nom 0 v i vac 0.85 05154a 275 225 250 fig. 4 maximum allowed output power versus ambient temperature at v i >105 vac for lok models. ?10 0 30 20 10 40 50 70 0.5 1.0 p o allowed / p o nom 0 t a c 0.45 05155a 60 output power at low input voltage the output power of lok models must be derated at low input voltage, see figure below. output protection battery charger versions lok4140-, 4240-, lok4740-2rld, and the lok4001-2rld have a rectangular current limitation characteristic, which limits the output current to within 100 and 150% of i o nom . the other models are protected against overload by a current limiting circuit, which shuts down the converter in overload condition. it automatically restarts after removal of the overload condition (hiccup mode). all models are short-circuit and no-load proof. outputs connected in series two or more converters supplying the same or different output voltages may be connected in series. the value of the maximum output current to be taken is defined by that unit providing the lowest current limiting value. it should be assured that the outputs do not feed backwards into each other caused by their different rise/fall times at switch-on/off cycles by adding reverse polarity diodes across each output. parallel operation only possible with battery charger versions. the outputs of several battery charger models with equal output voltage (e.g. several lok4240-2rld) may be connected in parallel.
sep 09, 2005 revised to jul 17, 2006 page 6 of 12 www.power-one.com los, lor, lok4000 series data sheet din-rail mountable ac-dc (dc-dc) converters 2.10 2.15 2.20 2.25 2.30 2.35 2.40 2.45 cell voltage [v] ?20 ?10 0 10 20 30 40 50 c 06123a v c = 2.27 v, ?3 mv/k v c = 2.27 v, ?3.5 mv/k v c = 2.23 v, ?3 mv/k v c = 2.23 v, ?3.5 mv/k v o nom v o max table 4: output voltage ok signal conditions lok4001-2rld lok4140-2rld lok4240-2rld lok4740-2rld unit min max min max min max min max v o t setting 4.4 4.8 10.5 11.5 21 23 42 46 v v d v o - v o t min 60 60 60 60 v o > v o t max 0.6 0.6 0.6 0.6 i d < 50 ma auxiliary functions adjustable output voltage (r input) as a standard feature, the lok units offer adjustable output voltage by using the control input r. if the r pin is left open- circuit, the output voltage is set to v o nom . (see: output data ) the r input is referenced to the secondary side of the converter. adjustment of the output voltage is possible by means of either an external resistor or a voltage source. a) adjustment by means of an external resistor r ext1 : depending upon the value of the required output voltage, the resistor shall be connected either: between the r terminal and vo? to achieve an output voltage adjustment range of approximately v o = 90 - 100 % v o nom .(lok4301, 4601 and 4801 types) v o r ext1 4 k ? ? ????????? v o nom ? v o or: between the r terminal and vo+ to achieve an output voltage range of approximately v o = 100 - 110% v o nom for rectifier versions and 100 - 125% v o nom for battery chargers. ( v o ? 2.5 v) r ext 2 4 k ? ? ??????????????????? 2.5 v ? ( v o / v o nom ? 1) r vo+ vo- + v ext - 4 k ? v ref = 2.5 v control circuit l n r ext1 r ext2 06029 b) adjustment by means of an external voltage v ext between vo? and r terminal to achieve an output voltage adjustment range of approx. 90 - 110% v o nom (lok 4301, 4601 and 4801 types), 93 - 117% v o nom for battery chargers. v o ? 2.5 v v ext ????????? v o nom attempting to adjust the output below this range will cause the converter to shut down (hiccup mode). note: applying an external control voltage >3 v may damage the converter. fig. 6 voltage setting by a temperature sensor, wiring diagram + ? battery vo+ r vo? temperature sensor sensor cable sensor wires + 05174a green brown white fuse ? fig. 7 float charge voltage for defined temperature coefficients. output voltage ok (d output) the d-output is referenced to vo? and monitors the output voltage v o . if v o drops below v o t , the d-output will be disabled (open-collector circuit). the circuitry works independently of the input voltage and can therefore be used as battery-low indicator. battery charging/temperature sensor the lok 4140/4240/4740 are designed to charge lead-acid batteries. for optimum battery charging and extended life time of the battery an external temperature sensor may be connected to the r-input. the sensor should be mounted as close as possible to one of the poles of the battery. depending upon the cell voltage and the temperature coefficient of the battery, different temperature sensors are available. for more information please see: temperature sensors (accessory products on the web site) or contact power-one. if no sensor is used, the float charge voltage should be adjusted with a suitable resistor connected to the r input (see: adjustable output voltage ). fig. 5 output voltage control by means of the r-input
sep 09, 2005 revised to jul 17, 2006 page 7 of 12 www.power-one.com los, lor, lok4000 series data sheet din-rail mountable ac-dc (dc-dc) converters electromagnetic compatibility (emc) immunity a metal-oxide vdr together with the input fuse and the input filter form an effective protection against high input transient table 5: immunity type tests phenomenon standard 1 level coupling value waveform source test per- mode 2 applied imped. procedure form. 3 electrostatic iec/en 2 air discharge 8000 v p 1/50 ns 330 ? 10 positive and b discharge 61000-4-2 10 negative discharges electromagnetic iec/en 2 antenna 3 v/m am 80% n.a. 80?1000 mhz b field 61000-4-3 1 khz 900 mhz 1800 mhz electrical fast iec/en 3 direct, i/ , +i/? i 2 kv p bursts of 5/50 ns 50 ? 60 s positive b transients/burst 61000-4-4 2.5/5 khz over 60 s negative 15 ms; burst transients per period: 300 ms coupling mode surge iec/en 3 i/ 2 kv p 1.2 / 50 s 12 ? 5 pos. and 5 neg. a 61000-4-5 2 +i/? i 1 kv p 2 ? surges per conducted iec / en 2 box 3 vac am 80% 150 ? 0.15 - 80 mhz a disturbances 61000-4-6 1 khz 1 related and previous standards are referenced in: technical information: standards 2 i = input, o = output, = pe case. 3 a = normal operation, no deviation from specifications, b = normal operation, temporary deviation from specs possible. emission internal input filtering keeps the conducted noise of the converters within the frequency range of 10 khz to 30 mhz below level b according to en 55011 and en 55022 standards. fig. 8 typical conducted disturbances (quasi-peak) at the input measured according to en 55011/ 55022 at v i nom and i o nom . lok4601-2r, v i = 230 vac. 07113 en 55022 a en 55022 b 90 80 70 60 50 40 30 20 10 0 0.01 0.05 0.1 0.5 1 2 5 10 20 30 [db v] mhz 0.02 fig. 9 radiated disturbances measured according to en 55011/ 55022 at v i nom and i o nom . lok4601-2r, v i = 230 vac. 0 10 20 30 40 50 en 55022 b dbv/m lok4601-2rc1, vin=230 vac, vo=24 v, io=2 a, antenna 10 m, 24-jan-06, esvs30, dubnica 30 50 100 200 500 mhz voltages, which typically occur in most installations. the los, lor, and lok series have been successfully tested to the following specifications:
sep 09, 2005 revised to jul 17, 2006 page 8 of 12 www.power-one.com los, lor, lok4000 series data sheet din-rail mountable ac-dc (dc-dc) converters 113.6 (4.47") 90 (3.54") 38 (1.5") s90042 108 (4.25") t c t c mechanical data dimensions in mm. weight: los/lor: approx. 0.25 kg lok: approx. 0.35 kg fig. 10 case european projection table 7: temperature specifications characterisitcs conditions min max unit t a ambient temperature operational 1 ?10 50 c t c case temperature ?10 80 t s storage temperature non operational ?40 85 1 see: thermal consideration . table 8: mtbf values mtbf type ground benign ground fixed ground mobile unit t c = 40 c t c = 40 c t c = 70 c t c = 50 c according to mil-hdbk-217f, notice 2 lok 1 600 000 400 000 200 000 120 000 h immunity to environmental conditions table 6: mechanical stress test method standard test conditions status ca damp heat iec/en 60068-2-78 temperature: 40 2 c converter steady state mil-std-810d section 507.2 relative humidity: 93 +2/-3 % not duration: 21 days operating ea shock iec/en 60068-2-27 acceleration amplitude: 15 g n = 147 m/s 2 converter (half-sinusoidal) mil-std-810d section 516.3 bump duration: 11 ms operating number of bumps: 18 (3 each direction) eb bump iec/en 60068-2-29 acceleration amplitude: 10 g n = 98 m/s 2 converter (half-sinusoidal) mil-std-810d section 516.3 bump duration: 11 ms operating number of bumps: 6000 (1000 each direction) fc vibration iec/en 60068-2-6 acceleration amplitude: 0.15 mm (10 - 60 hz) converter (sinusoidal) mil-std-810d section 514.3 2 g n = 20 m/s 2 (60 - 150 hz) operating frequency (1 oct/min): 10 - 150 hz test duration: 3.75 h (1.25 h each axis) led
sep 09, 2005 revised to jul 17, 2006 page 9 of 12 www.power-one.com los, lor, lok4000 series data sheet din-rail mountable ac-dc (dc-dc) converters installation instructions these converters are components, intended exclusively for inclusion within other equipment by an industrial assembly operation or by professional installers. installation must strictly follow the national safety regulations in compliance with the enclosure, mounting, creepage, clearance, casualty, markings and segregation requirements of the end-use application. connection to the system shall be according to terminal allocation and mechanical data . check for hazardous voltages before altering any connection. ensure that a converter failure (e.g. by an internal short-circuit) does not result in a hazardous condition. see also safety of operator accessible output circuit . the phase input ( l ) is internally fused by a 1.6 a slowblow type. it is not customer-accessible. this fuse is designed to protect the unit in case of overcurrent. option f or external fuses in the wiring to one or both input pins ( l and/or n ) may therefore be necessary to ensure compliance with local requirements. a second fuse in the wiring to the terminal n is needed if: ? local requirements demand an individual fuse in each source line ? neutral and earth impedance is high or undefined ? phase and neutral of the mains are not defined or cannot be assigned to the corresponding termials ( l to phase and n to neutral). note: do not open the converters, or guarantee will be invalidated. make sure that there is sufficient air flow available for convection cooling. this should be verified by measuring the case temperature when the unit is installed and operated in the end-use application. the maximum specified case temperature t c max shall not be exceeded. isolation the electric strength test is performed in the factory as routine test in accordance with en 50116 and iec/en 60950and should not be repeated in the field. power-one will not honor any guarantee/warranty claims resulting from electric strength field tests. caution: testing by applying ac voltages will result in high and dangerous leakage currents flowing through the y-capacitors (see fig. block diagram). safety and installation instructions terminal allocation the terminal allocation table defines the electrical potentials of the ac-dc converters. for mechanical positions of the terminals see: mechanical data . standards and approvals the converters correspond to class i equipment. all models are ul recognized according to ul 1950, ul recognized for canada to can/csa c22.2 no. 950-95 and tv, approved to iec/en 60950 standards. lor and los are ul 508-listed components. the converters have been evaluated for: ? building in ? double or reinforced insulation or an earthed part between input and output. ? basic insulation between input and earth ? functional insulation between output and earth ? the use in a pollution degree 2 environment ? connecting the input to a primary circuit with overvoltage category ii. the converters are subject to manufacturing surveillance in accordance with the above mentioned standards. for details see the declaration of conformity (last 2 pages). protection degree ip 20: all models. table 9: terminal allocation terminal electrical lok/lor/los 1 input l 2 protective earth 3 input n 4 d/output (positive) d /+ 5 output (positive) + 6 output (negative) ? 7 output (negative) ? 8 r input or open r / n.c. table 10: isolation characteristic input to input to output to unit protective earth output protective earth electric actual factory test 1 s 2.1 2.1 1 1.4 kvdc strength ac test voltage equivalent 1.5 1.5 1 1.0 kvac test voltage to actual factory test insulation resistance at 500 vdc > 300 > 300 > 100 m ? 1 in accordance with en 50116 and iec/en 60950 only subassemblies are pre-tested with 4.3 kvdc or 3.0 kvac.
sep 09, 2005 revised to jul 17, 2006 page 10 of 12 www.power-one.com los, lor, lok4000 series data sheet din-rail mountable ac-dc (dc-dc) converters under test conditions the leakage current flows through a measuring instrument (mi) as described in fig. measuring instrument for earth leakage current tests , which takes into account impedance and sensitivity of a person touching accessible parts. the current value is calculated by dividing the measured voltage by 500 w. if inputs and/or outputs of los, lor, or lok models are connected in parallel, their individual leakage currents are added. leakage currents in ac-dc operation leakage currents flow due to internal leakage capacitance and rfi suppression y-capacitors. the current values are proportional to the mains voltage and nearly proportional to the mains frequency and are specified at an input voltage of 264 v (50 hz) where phase, neutral and protective earth are correctly connected as required for class i equipment. fig. 11 measuring instrument (mi) for earth leakage current tests according to iec/en 60950. table 11: leakage currents characteristic lok unit maximum earth permissible according to iec/en 60950 3.5 ma leakage current specified value at 264 v, 50 hz 1.0 maximum output permissible according to iec/en 60950 0.25 leakage current specified value at 264 v, 50 hz 0.035 v mi 500 ? 1500 ? 10 k ? 220 nf 22 nf 10061 mi for output leakage current vo+ vo- 10053 mi for earth leakage current l l n n fig. 12 test setup.
sep 09, 2005 revised to jul 17, 2006 page 11 of 12 www.power-one.com los, lor, lok4000 series data sheet din-rail mountable ac-dc (dc-dc) converters description of options option f: built-in second fuse a built-in second fuse in the neutral input line enables safe connection to the mains where phase and neutral are not defined or cannot be identified as e.g., in the case of plug and socket connection to the mains via schuko-plugs, see also installation instruction. option k: system connectors for installation into systems using preassembled harnesses the converters are available with connectors fitted with screw terminals. the system connectors are ul-listed and approved for currents up to 10 a. wire cross-sections: solid wires 1.5 mm 2 (awg14), stranded wires 1 mm 2 (awg16). nuclear and medical applica tions - power-one products are not designed, intended for use in, or authorized for use as critical components in life support systems, equipment used in hazardous environments, or nuclear control systems without the express wr itten consent of the respective divisional president of power-one, inc. technical revisions - the appearance of products, including safety agency certifications pictured on labels, may change dependi ng on the date manufactured. specifications are subject to change without notice. safety of operator-accessible output circuit if the output circuit of an ac-dc converter is operator accessible, it shall be a selv circuit according to the iec/en 60950 related safety standards. the following table shows a possible installation configuration, compliance with which causes the output circuit of an los, lor, or lok4000 converter to be a selv circuit according to iec/en 60950 up to a configured output voltage (sum of nominal voltages if in series or +/? configuration) of 36 v. however, it is the sole responsibility of the installer to assure the compliance with the relevant and applicable safety regulations. table 12 : safety concept leading to a selv output circuit conditions ac-dc converter installation result nominal supply grade of insulation between measures to achieve the resulting safety statuts of the ac-dc voltage input and output, provided safety statuts of the output circuit converter output circuit by the ac-dc converter mains 250 vac double or reinforced earth connection 1 and installation selv circuit according to the applicable standards 1 the earth connection of terminal no. 2 has to be provided by the installer according to the relevant safety standards, e.g. iec/en 60950 fig. 13 schematic safety concept. use fuses and earth connection as per installation instructions and table safety concept leading to a selv output circuit . ac-dc con- verter mains selv earth connection + ? ~ ~ 10021 fuse fuse
sep 09, 2005 revised to jul 17, 2006 page 12 of 12 www.power-one.com los, lor, lok4000 series data sheet din-rail mountable ac-dc (dc-dc) converters ec declaration of conformity we power-one ag ackerstrasse 56, ch-8610 uster declare under our sole responsibility that all los/lor/lok series ac-dc (dc-dc) converters carrying the ce-mark are in conformity with the provisions of the low voltage directive (lvd) 73/23/eec of the european communities. conformity with the directive is presumed by conformity wih the following harmonized standards: ? en 61204: 1995 (= iec 61204: 1993, modified) low-voltage power supply devices, dc output - perfomance characteristics and safety requirements ? en 60950: 2000 (= iec 60950: 1999) for los/lor models en 60950-1: 2001 (= iec 60950-1: 2001) for lok models safety of information technology equipment. the installation instructions given in the corresponding data sheet describe correct installation leading to the presumption of conformity of the end product with the lvd. all these regulators are components intended exclusively for inclusion within other equipment by an industrial assembly operation or by professional installers. they must not be operated as stand alone products. hence conformity with the electromagnetic compatibility directive 89/336/eec (emc directive) needs not to be declared. nevertheless, guidance is provided in most product application notes on how conformity of the end product with the indicated emc standards under the responsibility of the installer can be achieved, from which conformity with the emc directive can be presumed. uster, 1 sept. 2005 power-one ag rolf baldauf johann milavec vicepresident engineering director projects and ip

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