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E-1048-8C4-C0A0V0-4U3-5A Datasheet(PDF) 1 Page - ETAL Group |
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E-1048-8C4-C0A0V0-4U3-5A Datasheet(HTML) 1 Page - ETAL Group |
1 / 4 page www.e-t-a.de Smart Power Relay E-1048-8C... 1 1651 5 Description Features Technical Data (TA = 25 °C, UN) E-1048-8C CUBIC version Power supply LINE + Type DC power supply with small Ri battery and generator etc. Voltage ratings UN DC 12 V/DC 24 V Operating voltage US: DC 9...32 V Closed-circuit current I0 in the OFF condition < 1 mA Load circuit LOAD Load output Power MOSFET, high side switching HSS Current rating range IN 1 A ... 25 A (fixed rating) without load reduction up to 85° C (1 A...20 A), 25 A bis 60 °C ambient temperature IN = 1 A ... 10 A: trip curve 1 IN = 15 A ... 25 A: trip curve 2 Types of loads resistive, inductive, capacitive, lamp loads, motors (depending on duration of inrush current) Typical voltage drop UON at rated current IN 1) Switching point 1) typically 1.3 x IN (-40 °C...+85 °C: 1.1...1.5 x IN) Trip time1) typically 200 ms with switch-on onto overload and/or load increase on duty max. overload IN = 1 A ... 10 A: 60 A (at L/R = 3ms) IN = 15 A ... 25 A: 250 A (at L/R = 3ms) Temperature disconnection power transistor > 150 °C Parallel connection of channels 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 integral for connected load IN = 1 A ... 10 A: 40 A IN = 15 A ... 25 A: 100 A Delay time 1) ton 5 ms / toff 1.5 ms The Smart Power Relay E-1048-8C – is a remotely controllable electronic load disconnecting relay with three functions in a single unit: l electronic relay l electronic overcurrent protection l status and monitoring functions The 7 pin CUBIC version is designed for use with standard automotive relay sockets. A choice of current ratings is available from 1 A through 25 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-1048-8C 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-1048-8C 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 and 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, 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 1 mA is absolutely necessary for battery buffered applications. l The load circuit is disconnected in the event of an overload or short circuit. 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 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 Coloured label, for the identification the rated current (e. g. red = 10 A) IN UON IN UON 1 A 50 mV 10 A 110 mV 2 A 55 mV 15 A 70 mV 3 A 60 mV 20 A 90 mV 5 A 80 mV 25 A 120 mV 7.5 A 90 mV 1) typical |
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