Smart Power Relay E-1048-8S... Description The Smart Power Relay E-1048-8S is a remotely controllable electronic load disconnecting relay with two functions in a single unit: l electronic relay l electronic overcurrent protection A choice of current ratings is available from 1 A through 30 A. An operating voltage range of DC 9...32 V allows the connection of DC 12 V and DC 24 V loads. tus with sta output It has been designed for installation in IP-protected enclosures. The optimised design allows reduction of space requirements up to 50 % compared to standard electro-mechanical cubic relays. Power consumption is cut by factor 5 compared to standard electro-mechanical relays and allows gas saving and reduction of CO2 emissions. 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 Now type E-1048-8S combines these two functions in a single unit, thus minimising the number of connections in the circuit and thereby reducing the risk of failures. E-1048-8S SLIMLINE-version Technical Data (Tamb. = 25 °C, UN = DC 24 V) Power supply LINE + Type Voltage ratings UN Operating voltage US DC power supply with small R i battery and generator etc. DC 12 V/DC 24 V DC 9...32 V Closed-circuit current < 50 µA I0 in the OFF condition 1) Applications Load circuit LOAD Type E-1048-8S 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 and protected: - agricultural and construction machinery, - 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. Features lThe E-1048-8Slimline features integral power electronics and provides wear-free switching function, insensitive against shock, vibration and dust. l Compared to electro-mechanical relays, only a fraction of the closed-circuit current or switching current is needed. 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 50 µA is absolutely necessary for battery buffered applications. l The load circuit is disconnected in the event of a short circuit. l For switching and monitoring loads of 25 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 Load conditions are visually indicated by a bicolour LED (load activated: yellow LED lighted; load disconnected due to overload or short circuit: red LED lighted). l An optional status output for group fault signalling »SF« provides status indication of the load circuit (overload/short circuit) Load output Power MOSFET, high side switching Current rating range IN1 A...25 A (fixed ratings), without load reduction up to 85° C (25 A ... 70 °C) IN = 1 A...10 A: see trip curve 1 IN = 15 A...25 A: see trip curve 2 Types of loadsresistive, inductive, capacitive, lamp loads, motors (depending on duration of inrush current) Typical voltage drop UON at rated current IN (at 25 °C) IN 1A 2A 3A 5A 7.5 A Switching point Trip time 1) 50 55 60 80 90 UON mV mV mV mV mV 1) IN 10 15 20 25 A A A A 1) UON 110 mV 70 mV 90 mV 120 mV typically 1.3 x IN (-40 °C...+85 °C: 1.1...1.5 x IN) typically 200 ms with switch-on onto overload and/or load increase on duty; can be modified in relation to specific projects. Max. overload Temperature disconnection Parallel connection of channels IN = 1 A...10 A: 60 A (at L/R = 3 ms) IN = 15 A...25 A: 200 A (at L/R = 3 ms) short-circuit-proof switching output with overload disconnection after typically 200 ms at Iload > typically 1.3 x rated current power transistor > 150 °C for loads of 25 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). Free-wheeling diode for connected load integral IN = 1 A...10 A: max. 40 A IN = 15 A...25 A: max. 100 A 1) typical 1646 www.e-t-a.de 1 5 Smart Power Relay E-1048-8S... Ordering Information Technical Data (Tamb. = 25 °C, UN = DC 24 V) Delay time 1)ton 0.5 ms / toff 1.5 ms Short circuit, overload - disconnection of load in load circuit - 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 IE 1) 1 mA at 12 V / 5 mA at 24 V Reset in the event of a failure -via external control signal (low - high) at control input IN+ - via reset of supply voltage Rising edge of IN+ < 5 ms Status functions Group fault signal SFtransistor output minus-switching (LSS), open collector, short circuit and overload-proof; max. load DC 32 V / 2 A 0 V level; in the event of overload and short circuit disconnection Visual status indication control current on (AS) yellow LED lighted disconnection overcurrent (SF) red LED lighted Type No. E-1048-8SSmart Power Relay DC 12/24 V, ratings 1 through 25 A, SLIMLINE design 2 - C3without enclosure, temperature range 40 … 85 °C (70 °C at 25 A); LED indication: yellow AS (control signal), red SF (group fault signal) Status output minus switching A without C with group fault output (SF) 1 - 4U3 -short circuit and overload indication, 200 ms switch-off delay at overload; DC 12/24 V Current ratings 1A 2A 3A 5A 7.5 A 10 A 15 A 20 A 25 A E-1048-8S 2 - C3 C 1-4U3 - 10Aordering example Connection diagram SLIMLINE General data Reverse polarity protection Control circuit yes Load circuit no (due to integral free-wheeling diode) Temperature range ambient temperature < Temperature shutdown Tests 5 LINE (+) DC 12 V/24 V AS yellow 1...20 A: -40...+85 °C 25 A: -40...70 °C without load reduction power transistor > 150 °C SF red control input 1…10 mA 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 Vibration was tested with standard sockets for PCB mounting. Behaviour at vibrations depends on design, quality and age (number of push-in cycles) of the socket particularly regarding duration of the vibration and the mounting position Shock 25 g/11 ms, 10 shocks test to DIN EN 60068-2-27 Corrosion test to DIN EN 60068-2-52, severity 3 EMC requirements EMC directive: emitted interference EN 61000-6-3 noise immunity EN 61000-6-2 group fault signal max. 2 A LOAD (+) IN+ SF * GND * optionally available: - status output SF (group fault) Terminals 4 blade terminals 6.3 mm x 0.8 mm to DIN 46244-A6.3-0.8 contact material CuZn37F37 copper-plated and tin-plated Dimensionsapprox. 30 x 45 x 9 mm when plugged in 41 x 45 x 9 mm including terminals Mass approx. 13 g This is a metric design and millimeter dimensions take precedence ( mm ) inch 2 www.e-t-a.de 1646 Smart Power Relay E-1048-8S... Dimensions SLIMLINE Typical time/current characteristics (TA = 25 °C) Trip curve 1 1 A, 2 A, 3 A, 5 A, 7,5 A and 10 A (standard 200 ms) 1000 30 1.18 100 6.8 .268 27.2 1.07 6.8 .268 LINE+ Trip time in ms 40,3 1.57 44.5 1.75 LED red LED yellow 6.3 .249 10 8,6 .315 1 max. overload 0.1 Design: power semiconductor varies depending on the current rating 0 1 2 typ. 1.3 x IN (typ. 60 A) I (A) ... times rated current IN Trip curve 2 15 A, 20 A, 25 and 30 A (standard 200 ms) E-1048-8S2-C3C1-4U3 1000 44,5 LED red LED yellow (1) (4) 6,8 (7) 20,4 (5) (2) 6,8 6,8 Trip time in ms 30 40,3 100 LINE+ 10 6,3 1 5 8,6 max. overload 0.1 0 Design: power semiconductor varies depending on the current rating Pin selection SLIMLINE (typ. 250 A)) 1 2 typ. 1.3 x IN ...times rated current IN I (A)) Accessories Single mounting sockets (up to 16 A max. load) E-1048-8S. 17-P10-Si 17-P10-Si LINE + (2) GND (5) SF (7) 17-P70-Si (2) (5) (7) [2(k)] [12] [24] 2-way mounting socket (up to 16 A max. load) 23-P10-Si IN+ LOAD (4) (1) (4) (1) [11] [1] 63-P10-Si pin 7 only available for versions with SF 1646 www.e-t-a.de 3 5 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. 4 www.e-t-a.de 1646