1 description features technical data (t u = 25 c, u s = dc 24 v) (t u = ambient temperature at u n ) power supply line + type dc power supply with small r i battery and generator etc. voltage ratings u n dc 12 v/dc 24 v operating voltage u s : dc 9...32 v load circuit load load output power mosfet, high side switching max. current rating i n 20 a types of loads resistive, inductive, capacitive, lamp loads, motors (depending on duration of inrush current) current rating range i n 1 a...15 a (fixed ratings) up to 85 c ambient without load reduction, 20 a up to 70 c. two basic versions with factory pre- set ratings: version 1: 1 a/2 a/3 a/5 a/7.5 a/10 a version 2: 15 a/20 a induced current consumption i 0 of the unit (off condition) < 1 ma typical voltage drop u on at rated current i n (at 25 c) switching point typically 1.3 x i n (-40 c...+85 c: 1.1...1.5 x i n ) trip time (standard curve) typically 200 ms with switch-on onto overload and/or load increase on duty current limitation version 1: typically 75 a version 2: typically 350 a temperature disconnection power transistor > 150 c after trip - resettable via external control signal (low-high) at control input in+ - reset of supply voltage parallel connection of channels for loads of 20 a plus, several units of identical current ratings may be connected in parallel. to ensure equal distribution of current between units, symmetrical design of the supply feed is necessary (length and cross section). leakage current in off condition version 1: max. 100 a version 2: max. 500 a free-wheeling diode for connected load integral version 1: max. 40 a version 2: max. 100 a the smart power relay e-1048-8i.- is a remotely controllable electronic load disconnecting relay with three functions in a single unit: l electronic relay l electronic overcurrent protection l status indication the 7 pin inline version is designed for use with various e-t-a terminal blocks, e. g. 17-p10-si. a choice of current ratings is available from 1 a through 20 a. an operating voltage range of dc 9...32 v allows the connection of dc 12 v and dc 24 v loads. in order to switch and protect loads remotely, it has until now been necessary to connect several discreet components together: - an electro-mechanic relay, control cable and integral contact to close the load circuit - an additional protective element (circuit breaker or fuse) for cable or equipment protection - a device for current measurement (shunt) now type e-1048-8i. combines all these functions in a single unit, thus minimising the number of connections in the circuit and thereby reducing the risk of failures. applications type e-1048-8i. is suited to all applications with dc 12 v or dc 24 v circuits, where magnetic valves, motors or lamp loads have to be switched, protected or monitored: - road vehicles (utility vehicles, buses, special vehicles) - rail vehicles - marine industry (ships, boats, yachts etc.) the power relay is also suitable for industrial use (process control, machine-building, engineering) as an electronic coupling relay between plc and dc 12 v or dc 24 v load l integral power electronics provide a wear-resistant switching function, insensitive to shock and vibration. l only a fraction of the control power needed by electro-mechanical relays is required for switching loads. this is important for battery buffered load circuits which have to remain controlled even with the generator off line. l the extremely low induced current consumption of less than 1 ma is absolutely necessary for battery buffered applications. l the load circuit is disconnected in the event of an overload or short circuit, the trip curve is also suitable for smaller motor loads. l the load circuit is permanently monitored for wire breakage. l two status outputs for control signal as and group signal sf provide status indication. for processing the actual value of the current flow in a power management system an analogue output from 0 to 5 v is provided. this voltage signal may also be used as an input to a control circuit or to switch off the unit by means of external control in the event of low load current value. l for switching and monitoring loads of 20 a plus it is possible to connect several units in parallel. uniform power distribution between units must be ensured by symmetrical design of the supply cables (length and cross section). l coloured label, e. g. red = 10 a, see ordering information. e-1048-8i... inline version i n u on i n u on 1 a 50 mv 7.5 a 90 mv 2 a 55 mv 10 a 110 mv 3 a 60 mv 15 a 60 mv 5 a 80 mv 20 a 60 mv www.e-t-a.de smart power relay e-1048-8i... 1646 5
2 delay time t on /t off typically 5 ms / typically 1.5 ms (resistive load) (emc filter in control input) wire breakage monitoring in wire breakage thresholds: on and off in off-condition (version 1): condition of load r load > typically 100 k in off-condition (version 2): r load > typically 10 k in on-condition: i load < typically 0.2 x i n indication via group fault signalisation sf (switching output) fault indication will not be stored, i.e. after remedy of wire breakage fault indication will disappear possible options: - wire breakage indication only in on condition - wire breakage indication only in off condition - no wire breakage indication) short circuit, overload - disconnection of load, indication via in load circuit group signal sf - no automatic re-start - after remedy of the fault unit has to be reset via control input in+ control input in+ control voltage in+ 0...5 v = off, 8.5...32 v = on control current i e 1...10 ma (8.5...dc 32 v) reset in the event of a failure - reset via external control signal (low - high) at control input in+ - via reset of supply voltage switching frequency at resistive or inductive load max. 100 hz status and diagnostic function control signal as transistor output minus switching (lss), open collector, short circuit and overload proof, max. load: dc 32 v/2 a 0 v-level: when unit is set (at in+ = 8.4...32 v) group signal sf transistor output minus switching (lss), open collector, short circuit and overload proof, load max. dc 32 v/2 a 0 v-level with overload and short circuit disconnection, wire breakage indication analogue output u(i) voltage output 0-5 v proportional to load current: 1 v = 0.2 x i n 5 v = 1.0 x i n 5 v... typically 6.5 v = overload range tolerance: (for i load > 0.2 x i n ) 8 % of i n max. output current 5 ma load resistance > 1 k against gnd trip times response time when switching on a load: definition of t 90 t 90 = typically 20 ms reached 90% of final value response time of load change on duty: t 90 = typically 1 ms visual status indication control signal as led yellow group fault signal sf led red general data reverse polarity protection control circuit yes load circuit no (due to integral free-wheeling diode) status outputs interference voltage resistance max. dc 32 v temperature range ambient temperature - standard: -40...+85 c without load reduction (70 c at 20 a) - for other temperature ranges please see ordering key tests humid heat combined test, 9 cycles with functional test test to din en 60068-2-30, z/ad temperature change min. temperature -40 c, max. temperature +90 c test to din iec 60068-2-14, nb vibration (random) in operation, with temperature change 6 g eff. (10 hz...2,000 hz) test to din en 60068-2-64 shock 25 g/11 ms, 10 shocks test to din en 60068-2-27 corrosion test to din en 60068-2-52, severity 3 protection class housing ip30 to din 40050 higher protection class upon request emc requirements emc directive: emitted interference en 61000-6-3 noise immunity en 61000-6-2 automotive directive: emitted interference, noise immunity: 72/245/ew6 und 95/54/e6 terminals of inline version (7 pin, standard) 7 blade terminals 6.3 mm x 0.8 mm to din 46244-a6.3-0.8 contact material cuzn37f37 copper-plated and tin-plated mounting: - e-t-a socket type 17-p10-si (max. load 16 a) - on a pc board with 6.3 mm receptacles housing inline version max. dimensions inline: 11.5 x 50 x 56 mm when plugged in 11.5 x 50 x 66 mm including terminals materials inline: pa66 mass approx. 23 g...33 g, depending on version approvals ce, e1 logo according to eu, emc and automotive directives technical data (t u = 25 c, u s = dc 24 v) (t u = ambient temperature at u n ) technical data (t u = 25 c, u s = dc 24 v) (t u = ambient temperatureat u n ) www.e-t-a.de smart power relay e-1048-8i... 1646 5
3 type e-1048-8i smart power relay dc 12 v/24 v - 1 a...20 a in inline version housing / temperature range 3 with housing / 70 c (without moisture condensation) 4 with housing / -40 c...+85 c (70 c at i n = 20 a) c with control input (+ control 8.5...32 v) leds 0 without leds 3 2 leds: as yellow, sf red status output minus-switching a without d with as and sf contents of group fault signal sf/ led indication sf 0 without 1 short circuit / overload 3 short circuit / overload + wire breakage on 4 short circuit / overload + wire breakage off + wire breakage on analogue output v0 without v1 0...5 v characteristic curve 4 200 ms (switch-off delay with overload) voltage rating u3 dc 12/24 v current ratings / colour of label 1 a / black 2 a / grey 3 a / purple 5 a / light-brown 7.5 a / brown 10 a / red 15 a / blue 20 a / yellow available configurations: part number (without options = basic) e-1048-8i 3 - c 0 a 0 v0 - 4 u3 - ... a part number (various options) e-1048-8i 4 - c 0 a 0 v0 - 4 u3 - ... a e-1048-8i 4 - c 3 a 1 v0 - 4 u3 - ... a e-1048-8i 4 - c 3 d 1 v0 - 4 u3 - ... a e-1048-8i 4 - c 3 d 1 v1 - 4 u3 - ... a e-1048-8i 4 - c 3 d 3 v0 - 4 u3 - ... a e-1048-8i 4 - c 3 d 4 v0 - 4 u3 - ... a part number (all options = deluxe) e-1048-8i 4 - c 3 d 4 v1 - 4 u3 - ... a ordering information connection diagram inline version (all options = deluxe) dimensions inline version (all options = delu xe) pin selection inline version yellow red control input analogue output 0 ? 5 v * optionally available: - signal outputs as / sf - analogue output u(i) load (+) gnd line (+) dc 12 v/24 v in + as sf as * sf * u(i) * = max. 6,5 v 1?10 ma max. 5 ma max. 2 a max. 2 a group fault signal control signal e-1048-8i. 17-p10-si line + (2) (2) [2(k)] gnd (5) (5) [12] sf (7) (7) [24] u(i) (3) (3) [2(i)] as (6) (6) [23] in+ (4) (4) [11] load (1) (1) [1] 50 1 4 63 75 2 56 66 11.5 led red led yellow 2.21 2.60 .453 1.97 this is a metric design and millimeter dimensions take precedence ( mm ) inch preferred types standard current ratings (a) 1 2 3 5 7.5 10 15 20 e-1048-8i4-c3d1v1-4u3- x x x x x x x x e-1048-8i3-c3d1v0-4u3- x x x x x x x x e-1048-8i4-c3a1v0-4u3- x x x x x x x x preferred types www.e-t-a.de smart power relay e-1048-8i... 1646 5 smart power relay e-1048-8i...
4 typical time/current characteristics (t a = 25 c) trip time in ms 1 2 1000 i (a) 0 v ersion 1: 1 a, 2 a, 3 a, 5 a, 7.5 a and 10 a (standard 200 ms) v ersion 2: 15 a and 20 a (standard 200 ms) 1000 1 2 100 10 1 0.1 0 current limitation n (typ. 75 a) ... times rated current i n typ. 1.3 x i n i (a) typ. 1.3 x i n (typ. 350 a) 100 10 1 0.1 trip time in ms current limitation ... times rated current i n www.e-t-a.de smart power relay e-1048-8i... 1646 5
5 accessories for e-1048-8i. connector bus links -p10 x 210 588 01 / 1.5 mm 2 , (awg 16), brown (up to 13 a max. load ) x 210 588 02 / 2.5 mm 2 , (awg 14), black (up to 20 a max. load) x 210 588 03 / 2.5 mm 2 , (awg 14), red (up to 20 a max. load ) x 210 588 04 / 2.5 mm 2 , (awg 14), blue (up to 20 a max. load) 2-way mounting socket 6-way mounting socket 23-p10-si 63-p10-si (retaining clip y 300 581 03 available on request) 2 mounting clip s installation drawing with y 300 504 02 (2 pcs needed per unit) mounting clips y 300 504 02 6 x 6.8 = 40.8 6 x .268 = 1.61 retaining clip 22.2 21 10 2 max. 30 6 3.5 6.8 7.4 4.4 64 50 57.4 25 12.5 4.4 7.4 12.5 6.25 64 50 75 12.5 polarized blade terminals din 46244-a6.3-0.8 (qc .250) polarized recess .173 .291 2.52 1.97 2.26 .492 .984 .291 .173 .394 .827 .874 .079 .236 max. 1.18 2.52 .492 1.97 2.95 50 1 .9 7 2 .26 57.4 .268 .1 38 .492 .246 ~70 100 quick-connect tabs 6.3 (.250) din 46247 tinned brass, insulated ~2.76 1.9 1 0.5 2 7. 5 12.5 7.3 8 m4 8.5 60.4 50 16.5 20 2 .075 .039 .295 .079 .020 .079 .335 .287 .315 .492 .650 .787 2.38 1.97 9 5.4 125 17 .669 .213 .354 4.92 2 cylinder head screw m4x4 iso1207 nickel plated washer a 4.3 din 125 nickel plated female connector phoenix terminal akg 35 max. cross section 35 mm 2 (awg 2) m4 10 12.8 7 154.8 pressure-relief joint (1.1 mm (.043 in.) thick constriction) cu rail, tin-plated .394 .079 .504 .276 6.09 blade terminal din 46244 part 2 c profile (2xa2.8-0.8) (qc 2x.110) depth 10 mm (.394 in.) adapter x20040901 symmetrical rail en 50022-35x7.5 polarization recess g-profile en 50035-g32 8.5 25.8 6.5 80 33.3 10 5 1.4 12.5 41.3 45.8 1 11 1 4 1 11 23 2(k) 12 24 2(i) 1 .80 1.63 .335 .256 1.02 3.15 1.31 .055 .197 .492 .394 polarized blade terminal din 46244-a6.3-0.8 (qc .250) slot for fitting labels from phoenix, weidmller 10 6.3 -p10 10 2.8 -p70 .3 94 .248 . 394 .110 single mounting sockets (with adapter) (up to 16 a max. load) 17-p10-si 17-p10-si-20025 17-p70-si 17-p70-si-20025 (retaining clip y 300 581 11 available on request) busbar (10-way) (supplied as a complete package) for type 17 socket (for max. 100 a continuous load), more positions available on request x 211 157 01 with terminal x 211 157 02 without terminal insulating sleeving for busbar (10-way) y 303 824 01 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. this is a metric design and millimeter dimensions take precedence ( mm ) inch www.e-t-a.de e-1048-8i... - accessories e-1048-8i... 1646 5 smart power relay e-1048-8i...
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