Power Relay EPR10 Description The electronic power relay EPR10 is a solid state relay for high continuous currents. It is suitable for use in utility vehicles and special vehicles where reliability and functional safety are at a premium. At DC 24 V, the EPR10 allows a continuous load of up to 200 A. The EPR10 is available in two different versions: EPR10-N is a relay and has no protective function. Two performance classes are available (up to 100 A and up to 200 A). EPR10-P is a protective relay and monitors both the load current and the thermal load. In the event of a critical condition, the device will automatically interrupt the circuit and will issue a group fault signal. Note: We are preparing a separate version for applications where the current can flow in both directions. The present EPR10 design only allows one current direction. Technical data (25 °C) Applications Powerful loads in DC 12 V and DC 24 V on-board electrical systems, which have to be supplied continuously with currents from 75 A to 200 A and which have to be switched frequently: l Pumps l Ventilations l Cooling systems Benefits l 80 % less space requirement than similar conventional solid state relays: - no heat sink required - low internal resistance through parallel connection of power semi-conductors - technically mature heat management - cooling through connecting cables l Low investment costs: - blade fuses in sub-paths and heat sinks superfluous because the EPR protects against overcurrent and short circuit l Minimised maintenance costs: - enhanced availability due to a much longer life span compared to mechanical relays - very high resistance against dust, humidity, vibration and shock due to the sealed electronic circuitry l Less CO2 emission: - due to low internal resistance - due to minor holding power l Flexible design: - the device switches without a sound and can therefore be installed in the passenger cabin without being noticed. Approvals Approval authority Logo Directive KBA E1 10R-05 7759 CE ECE R10 Rev. 05 2004/108/EG 1701 EPR10 Load circuit System voltage 12 V DC / 24 V DC Max. continuous EPR10-N (relay version without protective current function) 100 A or 200 A (please also see derating information) Current rating range EPR10-P (with protective function) 75 A, 100 A, 125 A, 150 A, 175 A, 200 A Max. overvoltage36 V DC Max. switch-off current Resistive loads (L/R < 0,3 ms) Inductive loads Last (L/R < 2 ms) EPR10-N - 100 A 700 A 100 A EPR10-N - 200 A 1400 A 200 A EPR10-P - 75 A 375 A 75 A EPR10-P - 100 A 500 A 100 A EPR10-P - 125 A 625 A 125 A EPR10-P - 150 A 750 A 150 A EPR10-P - 175 A 875 A 175 A EPR10-P - 200 A 1000 A 200 A Voltage drop 85 mV Max. switching frequency 1 Hz Reverse polarity without protectionNote: Observation of correct polarity when connecting the device is imperative to avoid damage of the relay. Load output HSS Leakage current < 10 µA Control circuit ConnectorTyco HDSCS 3-pole part number 1-1418448-1 Pin assignment: 1 = GND (chassis) 2 = SF (output group fault) 3 = IN (control input) Control voltage ON 6 … 32 V DC OFF: 0 ... 3 V DC Max. overvoltage 36 V DC Control current at 12 V DC 2.5 mA at 24 V DC 4 mA at < 3 V DC < 10 µA Rising edge < 5 ms Signal outputs Reverse polarity protection without Switch type “low side switch” www.e-t-a.de 1 5 Power Relay EPR10 Technical data (25 °C) Time/current characteristic (Tamb = 25 °C) Tests 5 Chemical resistance ISO 16750-5; 2010 (interior, under the hood, exterior) Vibration resistanceIS0 16750-3: 2012 (test VIII) Mechanical ShockIS0 16750-3: 2012 (Test for devices on rigid points on the body and on the frame) Corrosion resistance ISO 16750-4; 2010 (5.5.1 severity level 4) Humidity ISO 16750-4 2010 (5.6.2.3) Temperature change ISO 16750-4; 2010 (5.3.1) Elektromagnetic Regulation no. 10 of the United Nations Economic Commission Compatibility (EMC)for Europe (UN/ECE) — Harmonisation of vehicle regulatiolns regarding electromagnetic compatibility EN 61000-6-2: 2005 EN 61000-6-3: 2007 Electrostatic Discharge (ESD) EN 61000-6-2: 2005 EN 61000-6-3: 2007 Humidity ISO 16750-4; 2010 no trip must trip 100% 130 % 10 P7 1 P5 P2 0.1 trip time in ms Voltage 0 ... 32 V DC Max. leakage current 20 µA Max. load current 2A General Typical life > 1,000,000 cycles Trip current only EPR10-P (with protective function) 1.3 times rated current ± 15 % Trip timeonly EPR10-P (with protective function) selectable between 0.2 / 0.5 / 0.7 s ± 15 % Excess temperature only EPR10-P (with protective function); circuit will be disconnected with excess temperature; (reset after 500 ms OFF condition) Temperature range -40…+85 °C in operation -55…+90 °C for storage Degree of protection IP57 Vibration >6g Chemical resistanceoil, grease, alcohol, urea, extinguishing agents, battery acid, salt mist, detergents, humidity Enclosure and mounting Material of enclosure moulded, V0 flammability rating Terminals tin-plated copper Terminal studs stainless steel Max. tightening torque 15 Nm (for M8 studs) Dimensions 163 mm x 73 mm x 35 mm Mass ≤ 250 g Recommended current ratings [A]cable cross section [mm²] cross sections 75 25 100 35 125 50 150 50 175 70 200 95 0.01 0.001 0.0001 1E-05 0 1.30 2 3 4 5 6 7 8 ... times rated current IN Order numbering code Type No. EPR10 Electronic Power Relay Protective function N0 without protection P2 overcurrent trip at 1.3 x In after 200 ms P5 overcurrent trip at 1.3 x In after 500 ms P7 overcurrent trip at 1.3 x In after 700 ms Design F1 flat design Terminals / control cable G1M8 terminal studs / Tyco connectors (HDSCS) with 2 M8 nuts G2M8 terminal studs / Tyco connectors (HDSCS) without M8 nuts Load and control HS HSS Version S0 standard System voltage D2 DC 12 V / 24 V Current ratings (at 25°C) 75 A protected version only 100 A both versions 125 A protected version only 150 A protected version only 175 A protected version only 200 A both versions EPR10 - P7 F1 G2 - HS S0 D2 - 200A ordering example Temperature shockISO 16750-4; 2010 (Ice water shock test; submersion test) Free fall ISO16750-3; 2012 Degree of protectionIP57 (except terminals of load circuit) Materialmoulded enclosure including epoxy with flammability rating VO UL 94: 1996 2 www.e-t-a.de 1701 Power Relay EPR10 Dimensions max. ampacity Derating curve 162.4 ± 0,5 139.6 ± 0.4 installation area operating area installation area 72.2 ± 0.4 Tamb [°C] 14.25 ± 0.3 Schematic diagram 136.2 ± 0.4 LOAD (-) LINE (+) DC 12 V /24 V 17.4 ± 0.4 SF GND IN+ + IN SF + EPR-10... GND HighSide Switch Load 33.6 ± 0.4 Load IN SF EPR-10... max. 70 max. 70 + - GND 5 Low Side Switch All dimensions without tolerances are for reference only. E-T-A reserves the right change specifications at any time 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. 1701 www.e-t-a.de 3 5 4 www.e-t-a.de 1701