1 description technical data (t ambient = 25 c, operating voltage u s = dc 24 v) esx10 electronic circuit protector type esx10 is designed to ensure selective disconnection of dc 24 v load systems. dc 24 v power supplies, which are widely used in industry today, will shut down the output in the event of an overload with the result that one faulty load in the system can lead to complete disconnection of all loads. as well as an unidentified failure this also means stoppage of the whole system. through selective disconnection the esx10 responds much faster to overload or short circuit conditions than the switch-mode power supply. this is achieved by active current limitation. the esx10 limits the highest possible current to values between 1.3 to 1.8 times the selected rated current of the circuit protector. thus it is possible to switch on capacitive loads of up to 75,000 f lamp loads, but they are disconnected only in the event of an overload or short circuit. for optimal alignment with the characteristics of the application the current rating of the esx10 can be selected in fixed values from 0.5 a...12 a. failure and status indication are provided by a multicolour led and an integral short-circuit-proof status output or a potential-free signal contact. the esx10, with a width of only 12.5 mm, can be plugged into the e-t-a power distribution socket module 17plus ensuring ease of installation and saving space in control cabinets. upon detection of overload or short circuit in the load circuit, the mosfet of the load output will be blocked to interrupt the current flow. the mosfet and the load circuit may be re-activated via the remote electronic reset input or manually by means of the on/off button. when starting up the system, the load circuit may also be manually disconnected. us patent number: us 6,490,141 b2 features l selective load protection, electronic trip characteristics. l active current limitation for safe connection of capacitive loads up to 75,000 f and on overload/short circuit. l current ratings 0.5 a...12 a. l reliable overload disconnection with 1.1 x i n plus, even with long load lines or small cable cross sections (see table 3). l manual on/off button (s1). l clear status and failure indication through led, status output sf or si contact f. l electronic reset input re (option). l integral fail-safe element. l width per unit only 12.5 mm. l plug-in mounting utilising power distribution system module 17plus or svsxx optionally (see product group power distribution systems) l additional versions with atex approval available. marking: ii 3g ex na iib t4 gc x esx10-...-e please observe separate operating instructions: operating data operating voltage u s dc 24 v (18...32 v) current rating i n fixed current ratings: 0.5 a, 1 a, 2 a, 3 a, 4 a, 6 a, 8 a, 10 a, 12 a closed current i 0 on condition: typically 20...30 ma depending on signal output status indication l multicolour led: by means of green: unit is on, power-mosfet is switched on - status output sf on, supplies +dc 24 v orange: in the event of overload or short circuit until electronic disconnection red: - unit electronically disconnected - load circuit/power-mosfet off off: - manually switched off (s1 = off) or device is dead - undervoltage (u s < 8 v) - after switch-on till the end of the delay period l status output sf (option) l potential-free signal contact f (option) l on/off/ condition of switch s1 load circuit load output power-mosfet switching output (high side switch) overload disconnection typically 1.1 x i n (1.05...1.35 x i n ) short-circuit current i k active current limitation (see table 1) trip time see time/current characteristics for electronic disconnection typically 3 s at i load > 1.1 x i n typically 3 s...100 ms at i load > 1.8 x i n (or 1.5 x i n /1.3 x i n ) temperature disconnection internal temperature monitoring with electronic disconnection low voltage monitoring load output with hysteresis, no reset necessary load off at u s < 8 v starting delay t start typically 0.5 sec after every switch-on and after applying u s disconnection of load circuit electronic disconnection free-wheeling circuit external free-wheeling diode recommended with inductive load several load outputs must not be connected in parallel www.e-t-a.de electronic circuit protector esx10 1642 4
2 status output sf esx10-104/-124 electrical data plus-switching signal output, connects u s to terminal 12 of module 17plus nominal data: dc 24 v / max. 0.2 a (short circuit proof) status output is internally connected to gnd with a 10 kohm resistor status out esx10-104/-106/ -124 (signal status out), at u s = +24 v +24 v = s1 is on, load output connected through 0v = s1 is on, load output blocked and/or switch s1 is off status out esx10-127 (signal status out inverted), at u s = +24 v +24 v = s1 is on, load output blocked, red led lighted 0 v = s1 is on, load output connected through and/or switch s1 is in off position off condition 0 v level at status output when: l switch s1 is in on position, but device is still in switch-on delay l switch s1 is off, or control signal off, device is switched off l no operating voltage u s signal output f esx10-103/-115/-125 electrical data potential-free signal contact max. dc 30 v/0.5 a, min. 10 v/10 ma on condition led green voltage u s applied, switch s1 is in on position no overload, no short circuit off condition led off l device switched off (switch s1 is in off position) l no voltage u s applied fault condition led orange overload condition > 1.1 x i n up to electronic disconnection fault condition led red electronic disconnection upon overload or short circuit device switched off with control signal (switch s1 is in on position) esx10-101 single signal, make contact contact sc/so-si open esx10-102 single signal, break contact contact sc/so-si closed esx10-103 group signal change-over contact contact sc-so open, sc-si closed esx10-115/-125 group signal, make contact contact sc-so open fault signal output fault conditions: l no operating voltage u s l on/off switch s1 is in off position l red led lighted (electronic disconnection) technical data (t ambient = 25c, operating voltage u s = dc 24 v) technical data (t ambient = 25c, operating voltage u s = dc 24 v) reset input re esx10-124/-125 electrical data voltage: max. + dc 32 v high > dc 8 v dc 32 v low dc 3 v > 0 v power consumption typically 2.6 ma (+dc 24 v) min. pulse duration typically 10 ms reset signal re the electronically blocked esx10-124/-127 (= terminal 13,14 or 12 may remotely be reset via an external of module 17plus) momentary switch due to the falling edge of a +24 v pulse. caution: unused slots the reset signal will be fed in terminal 13, 14 have to be fitted with or 12 of module 17plus and is internally jumpers pre-wired. the reset simultaneously affects all blocked esx10-124/-127 channels of the power distribution system, all switched on esx10-124/-127 channels remain unaffected. with type esx10-125 the reset only affects the device concerned. by connecting the individual terminals 12 of the module 17plus a joint reset signal for all esx10-125 may be generated. control input in+ esx10-115 electrical data see reset input re control signal in+ +24 v level (high): device will be switched on by a remote on/off signal 0 v level (low): device will be switched off by a remote on/off signal switch s1 on/off unit can only be switched on with s1 if a high level is applied to in+ general data fail-safe element: backup fuse for esx10 not required because of the integral redundant fail-safe element blade terminals 6.3 mm to din 46244-a6.3-0.8 housing moulded mounting plug-in mounting utilising power distribution system module 17plus or svsxx ambient temperature 0...+50 c (without condensation, see en 60204-1) storage temperature -40...+70 c humidity 96 hrs/95 % rh/40 c to iec 60068-2-78, test cab. climate class 3k3 to en 60721 vibration 3 g, test to iec 60068-2-6 test fc degree of protection housing: ip30 din 40050 terminals: ip00 din 40050 emc emission: en 61000-6-3 (emc directive, ce logo) susceptibility: en 61000-6-2 insulation co-ordination 0.5 kv/2 pollution degree 2 (iec 60934) re-inforced insulation in operating area dielectric strength max. dc 32 v (load circuit) insulation resistance (off condition) n/a, only electronic disconnection approvals ce logo ul 2367, file # e306740 solid state overcurrent protectors curus: ul 508, csa c22.2 no. 14, file # e322549 ul 1604, file # e320024 (class i , division 2, groups a, b, c, d) csa c22.2 no. 142, file # 16186 csa c22.2 no. 213 (class i, division 2) dimensions (w x h x d) 12.5 x 70 x 60 mm mass approx. 40 g table 1: voltage drop, current limitation, max. load current current rating i n typically voltage drop u on at i n active current limitati- on (typically) max. load current at 100 % on duty t u = 40 c t u = 50 c 0.5 a 70 mv 1.8 x i n 0.5 a 0.5 a 1 a 80 mv 1.8 x i n 1 a 1 a 2 a 130 mv 1.8 x i n 2 a 2 a 3 a 80 mv 1.8 x i n 3 a 3 a 4 a 100 mv 1.8 x i n 4 a 4 a 6 a 130 mv 1.8 x i n 6 a 5 a 8 a 120 mv 1.5 x i n 8 a 7 a 10 a 150 mv 1.5 x i n 10 a 9 a 12 a 180 mv 1.3 x i n 12 a 10.8 a attention: when mounted side-by-side without convection the esx10-0.. should not carry more than 80 % of its rated load with 100 % on duty due to thermal effects. electronic circuit protector esx10 www.e-t-a.de electronic circuit protector esx10 1642 4
3 ordering configuration for atex versions: ...-e esx10-124-? failsafe r sense line (+) dc 24 v load (+) load output gnd (-) sf status output re reset input re reset input status indication green/orange/red s1 on/off electronic control unit schematic diagram esx10-124 ordering information type no. esx10 electronic circuit protector for dc 24 v applications version 1 standard, without physical isolation in the event of a failure signal input 0 without signal input 1 with control input in+, only esx10-115 2 with reset input re, only esx10-124 signal outputs 0 without, only esx10-100 3 signal output f (group signal, change-over) only esx10-103 4 status output sf (+24 v = ok), only esx10-104, esx10-124 5 signal output f (group signal, n/o only esx10-115 and esx10-125) operating voltage dc 24 v rated voltage dc 24 v current rating 0.5 a 1 a 2 a 3 a 4 a 6 a 8 a 10 a 12 a esx10 - 1 0 3 - dc 24 v - 6 a ordering example please note: l the user should ensure that the cable cross sections of the relvant load circuit are suitable for the current rating of the esx10 used. l automatic start-up of machinery after shut down must be preven- ted (machinery directive 98/37/eg and en 60204-1). in the event of a short circuit or overload the load circuit will be disconnected electronically by the esx10. description of esx10 signal inputs and outputs (wiring diagrams) see next page. preferred types standard current ratings (a) 1 2 3 4 6 8 10 12 esx10-103-dc24v x x x x x x x x preferred types type no. esx10 electronic circuit protector for dc 24 v applications version 1 standard, without physical isolation in the event of a failure signal input 0 without signal input 1 with control input in+ 2 with reset input re signal outputs 0 without 3 signal output f (group signal, change-over) 4 status output sf 5 signal output f (group signal, n/o only esx10-115 and esx10-125) operating voltage dc 24 v rated voltage dc 24 v current rating 0.5...12 a approvals e atex esx10 -1 0 3 - dc 24 v -6 a e ordering example approvals authority standard voltage ratings current ratings ul ul 2367 dc 24 v 0.5...12 a ul ul 1604 dc 24 v 0.5...12 a ul curus ul 508 csa c22.2 no. 14 dc 24 v 0.5...16 a csa c22.2 no. 142 c22.2 no. 213 (class i, division 2) dc 24 v 0.5...12 a tv sd atex 94/9/ec annex viii en 60079-0 en 60079-11 en 60079-15 dc 24 v gl rules vi, part 7, gl 2012, category c, emc1 dc 24 v 0.5...12 a www.e-t-a.de electronic circuit protector esx10 1642 4 electronic circuit protector esx10
4 dimensions this is a metric design and millimeter dimensions take precedence ( mm ) inch 12.3 operating area blade terminals din 46244-6.3-0.8 mounting area 60 70 10.3 50 6x6.8=40.8 6.8 reverse plug-in protection off 6a ok on 2.36 2.75 .405 .267 6x.267=1.60 1.97 .484 12.3 operating area blade terminals din 46244-6.3-0.8 mounting area 60 70 10.3 50 6x6.8=40.8 6.8 reverse plug-in protection off 6a ok on 2.36 2.75 .405 .267 6x.267=1.60 1.97 .484 information to ul-approvals/csa-approvals esx10 ul1604 ul file # e320024 operating temperature code t4 a / 0 c to 50 c - this equipment is suitable for use in class i, division 2, groups a, b, c and d or non-hazardous locations only warning: - exposure to some chemicals may degrade the sealing properties of materials used in the following device: relay sealant material: generic name: modified diglycidyl ether of bisphenol a supplier: fine polymers corporation type: epi fine 4616l-160pk casing material: generic name: liquid crystal polymer supplier: sumitomo chemical type: e4008, e4009, or e6008 recommendation: - periodically inspect the device named above for any degradation of properties and replace if degradation is found warning C explosion hazard: - do not disconnect equipment unless power has been removed or the area is known to be non-hazardous - substitution of any components may impair suitability for class i, division 2 esx10 ul2367 non-hazardous use - ul file # e306740 esx10 ul 508, csa c22.2 no. 14 non-hazardous use - ul file # e322549 esx10 csa c22.2 no. 142 - file # 16186 csa c22.2 no. 213 (class i, division 2) - file # 16186 class 2 meets requirement for class 2 current limitation (esx10-...-0.5 a/1 a/2 a/3 a) terminal wiring diagram esx10-124 esx10 1 11 2 13 14 12 line + gnd load + re re sf status out reset in failsafe electronic circuit protector xxx esx10-124-dc 24 v made in germany -xxa this equipment is suitable for use in class i, division 2, gr oups a, b, c and d or non-hazar dous locations only . t4a / 0 c to 50 c wa r nings: 1. remove power befor e disconnecting device or the ar ea is known to be nonhazard ous. 2. components substitutions may impair suitability of class i, div 2. 3. chemical exposur e may degrade inter nal re lay's sealing pr operty . electr onic cir cuit pr otector esx10 ul1604 refer to data sheet / installation guidelines for installation and safety instructions. c22.2 no.213 ul file # e320024 csa file # 16186 e-t-a elektrotechnische apparate gmbh industriestra?e 2-8 d-90518 altdorf germany phone: +49 9187 10-0 fax +49 9187 10-397 e-mail: info@e-t-a.de www.e-t-a.de ul508 csa c22.2 no.14 non-hazar dous use ul file # e306740 ul2367 non-hazar dous use ul file # e322549 electronic circuit protector esx10 www.e-t-a.de electronic circuit protector esx10 1642 4
5 eg-declaration of conformity for atex-version esx10-ta/-tb-...-e accessories line (+ ) load (+ ) gn d re re si i > ok on / of f control uni t failsaf e slot for busbar module right-side terminal block left-side terminal block slot for fitting labels from phoenix, weidmller, wieland 63 115 47 42.5 70 57 6 25 25 max. 38 11 14 17 plus 11 14 2 12 12 1 line 1 line 2 g-profile en 50035-g32 symmetrical rail en 50022-35x7.5 2.75 1.85 1.67 2.48 4.53 2.24 .236 max. 1.50 .984 .984 module 17plus for technical data see section power distribution systems www.e-t-a.de electronic circuit protector esx10 1642 4 electronic circuit protector esx10
6 disconnection typically 1.1 x i n current limitation typically 1.8 x i n i k 10000 1000 1 2 4 trip time in seconds ...times rated current 100 10 1 0. 1 0.01 3 5 0 1.8 x i n 5 time/current characteristic curve (t a = 25 c) table 3: reliable trip of esx10 *1) current limitation typically 1.8 x i n times rated current at i n = 0.5 a...6 a current limitation typically 1.5 x i n times rated current at i n = 8 a or 10 a current limitation typically 1.3 x i n times rated current at i n = 12 a l the trip time is typically 3 s in the range between 1.1 and 1.8 x i n *1) . l electronic current limitation occurs at typically 1.8 x i n *1) which means that under all overload conditions (independent of the power supply and the resistance of the load circuit) the max. overload before disconnection will not exceed 1.8 x i n *1) times the current rating. trip time is between 100 ms (short circuit current i k ) and 3 sec (at overload with high line attenuation). l without this current limitation a considerably higher overload current would flow in the event of an overload or short circuit. reliable trip of esx10 with different cable lengths and cross sections resistivity of copper 0 = 0.0178 (ohm x mm 2 ) / m u s = dc 19.2 v (= 80 % v. 24 v) voltage drop of esx10 and tolerance of trip point (typically 1.1 x i n = 1.05 ... 1.35 x i n ) have been taken into account. esx10-selected rating i n (in a) ? e. g. trip current i ab = 1.25 x i n (in a) ? r max in ohm = (u s / i ab ) - 0.050 ? 3 6 3.75 7.5 ? esx10 trips after 3 s 5.07 2.51 the esx10 reliably trips from 0 ohm to max. circuitry resistance r max cable cross section a in mm 2 ? 0.14 0.25 0.34 0.5 0.75 1 1.5 cable length l in meter (= single length) cable resistance in ohm = (r 0 x 2 x l) / a 5 1.27 0.71 0.52 0.36 0.24 0.18 0.12 10 2.54 1.42 1.05 0.71 0.47 0.36 0.24 15 3.81 2.14 1.57 1.07 0.71 0.53 0.36 20 5.09 2.85 2.09 1.42 0.95 0.71 0.47 25 6.36 3.56 2.62 1.78 1.19 0.89 0.59 30 7.63 4.27 3.14 2.14 1.42 1.07 0.71 35 8.90 4.98 3.66 2.49 1.66 1.25 0.83 40 10.17 5.70 4.19 2.85 1.90 1.42 0.95 45 11.44 6.41 4.71 3.20 2.14 1.60 1.07 50 12.71 7.12 5.24 3.56 2.37 1.78 1.19 75 19.07 10.68 7.85 5.34 3.56 2.67 1.78 100 25.34 14.24 10.47 7.12 4.75 3.56 2.37 125 31.79 17.80 13.09 8.90 5.93 4.45 2.97 150 38.14 21.36 15.71 10.68 7.12 5.34 3.56 175 44.50 24.92 18.32 12.46 8.31 6.23 4.15 200 50.86 28.48 20.94 14.24 9.49 7.12 4.75 225 57.21 32.04 23.56 16.02 10.68 8.01 5.34 250 63.57 35.60 26.18 17.80 11.87 8.90 5.93 example 1: max. length at 1.5 mm 2 and 3 a ? 214 m example 2: max. length at 1.5 mm 2 and 6 a ? 106 m example 3: mixed wiring: r1 = 40 m in 1.5 mm 2 and r2 = 5 m in 0.25 mm 2 : (control cabinet C sensor/actuator level) r1 = 0.95 ohm, r2 = 0.71 ohm total (r1 + r2) = 1.66 ohm electronic circuit protector esx10 www.e-t-a.de electronic circuit protector esx10 1642 4
7 all dimensions without tolerances are for reference only. in the interest of improved design, performance and cost effectiveness the right to make changes in these specifications without notice is reserved. product markings may not be exactly as the ordering codes. errors and omissions excepted. esx10 signal inputs / outputs (wiring diagram) failsafe line + 1 gnd 11 2 load + 13 re 14 re 12 sf status out reset in esx10-124-... with reset input re (+dc 24 v) with status output sf (+24v = load output on) failsafe line + 1 gnd 11 2 load + 13 sc 14 so 12 si signal esx10-103 without signal input with signal output f (group signal, change-over) operating condition: sc/so closed, sc-si open fault condition: sc/so open, sc-si closed failsafe line + 1 gnd 11 2 load + 13 sc 14 so esx10-104 without signal input with status output sf (+24 v = load output on) sf 12 status out failsafe line + 1 gnd 11 2 load + 13 sc 14 so signal 12 in + control in esx10-115-... with control input in+ (+dc 24 v) with signal output f (group signal, n/o) operating condition: sc-so closed fault condition: sc-so open failsafe line + 1 gnd 11 2 load + 13 sc 14 so signal 12 re reset in esx10-125-... with reset input re ( +dc 24 v) with signal output f (gr oup signal, n/o ) operating condition: sc-so closed fault condition: sc-so open esx10 signal inputs / outputs (wiring diagrams) signal contacts are shown in the off or fault condition. failsafe line + 1 gnd 11 2 load + esx10-100 without signal input/output 13 14 operating condition: sf +24 v = ok fault condition: sf 0v operating condition: sf +24v = ok fault condition: sf 0v table 2: esx10 - product version version signal input signal output signal output f status output sf esx10 -... control input on/off +24 v control in+ reset input +24 v re group signal n/o group signal change-over status out +24 v = ok -100 -103 x -104 x -115 x x -124 x x -125 x x this is a metric design and millimeter dimensions take precedence ( mm ) inch www.e-t-a.de electronic circuit protector esx10 1642 4 electronic circuit protector esx10
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