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 EPR10 allows one current direction. US patent number: US 10,021,788 B2 Technical data (25 C) US 10,070,514 B2 Load circuit Applications System voltage 12 V DC / 24 V DC Max. continuous EPR10-N (relay version without protective Powerful loads in DC 12 V and DC 24 V on-board electrical systems, current function) 100 A or 200 A which have to be supplied continuously with currents from 75 A to 200 A (please also see derating information) and which have to be switched frequently: Current rating range EPR10-P (with protective function) l Pumps 75 A, 100 A, 125 A, 150 A, 175 A, 200 A l Ventilations Max. overvoltage 36 V DC l Cooling systems Max. switch-off Resistive loads Inductive loads current (L/R < 0,3 ms) Last (L/R < 2 ms) Benefits EPR10-N - 100 A 700 A 100 A l 80 % less space requirement than similar conventional solid state relays: EPR10-N - 200 A 1400 A 200 A - no heat sink required EPR10-P - 75 A 375 A 75 A - low internal resistance through parallel connection of power EPR10-P - 100 A 500 A 100 A semi-conductors - technically mature heat management EPR10-P - 125 A 625 A 125 A - cooling thr ough connecting cables EPR10-P - 150 A 750 A 150 A l Low investment costs: EPR10-P - 175 A 875 A 175 A - blade fuses in sub-paths and heat sinks superfluous because the EPR10-P - 200 A 1000 A 200 A EPR protects against overcurrent and short circuit Voltage drop 85 mV 5 l Minimised maintenance costs: Max. switching - enhanced availability due to a much longer life span compar ed to frequency 1 Hz mechanical relays Reverse polarity without - very high resistance against dust, humidity, vibration and shock protection Note: Observation of correct polarity when due to the sealed electronic circuitry connecting the device is imperative to avoid damage of the relay. l Less CO emission: 2 Load output HSS - due to low internal resistance Leakage current < 10 A - due to minor holding power Control circuit Connector T yco HDSCS 3-pole part number 1-1418448-1 l Flexible design: Pin assignment: - the device switches without a sound and can ther efore be 1 = GND (chassis) installed in the passenger cabin without being noticed. 2 = SF (output group fault) 3 = IN (control input) Control voltage ON 6 32 V DC Approvals OFF: 0 ... 3 V DC Max. overvoltage 36 V DC Approval authority Logo Directive Control current at 12 V DC 2.5 mA KBA E1 10R-05 7759 ECE R10 Rev. 05 at 24 V DC 4 mA at < 3 V DC < 10 A CE 2004/108/EG Rising edge < 5 ms Signal outputs Reverse polarity protection without Switch type low side switch 2010 www.e-t-a.de 1Power Relay EPR10 Power Relay EPR10 Technical data (25 C) Time/current characteristic (T = 25 C) amb Voltage 0 ... 32 V DC no trip 100% Max. leakage current 20 A must trip 130 % Max. load current 2 A 10 General Typical life > 1,000,000 cycles P7 1 Trip current only EPR10-P (with protective function) 1.3 times rated current 15 % P5 Trip time only EPR10-P (with protective function) P2 selectable between 0.2 / 0.5 / 0.7 s 15 % 0.1 Excess temperature only EPR10-P (with protective function) cir cuit will be disconnected with excess temperature 0.01 (reset after 500 ms OFF condition) Temperature range -40+85 C in operation -55+90 C for storage Degree of protection IP57 0.001 Vibration > 6 g Chemical resistance oil, gr ease, alcohol, urea, extinguishing agents, battery acid, salt mist, detergents, 0.0001 humidity Enclosure and mounting Material of enclosure moulded, V0 flammability rating 1E-05 Terminals tin-plated copper Terminal studs stainless steel 0 1.30 2 3 4 5 6 7 8 Max. tightening torque 15 Nm (for M8 studs) ... times rated current I N Dimensions 163 mm x 73 mm x 35 mm Mass 250 g Recommended current ratings A c able cross section mm cross sections 75 25 Order numbering code 100 35 125 50 Type No. 150 50 EPR10 Electronic Power Relay 175 70 Protective function 200 95 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 Tests Design F1 flat design Terminals / control cable Chemical ISO 16750-5 2010 (interior, G1 M8 terminal studs / Tyco connectors (HDSCS) resistance under the hood, exterior) with 2 M8 nuts 5 G2 M8 terminal studs / T yco connectors (HDSCS) Vibration resistance IS0 16750-3: 2012 (test VIII) without M8 nuts Mechanical Shock IS0 16750-3: 2012 Load and control (Test for devices on rigid points on HS HSS the body and on the frame) Version S0 standard Corrosion resistance ISO 16750-4 2010 (5.5.1 severity level 4) System voltage Humidity ISO 16750-4 2010 (5.6.2.3) D2 DC 12 V / 24 V Temperature change ISO 16750-4 2010 (5.3.1) Current ratings (at 25C) 75 A protected version only Elektromagnetic Regulation no. 10 of the United Nations 100 A both versions Economic Commission 125 A protected version only Compatibility (EMC)for Europe (UN/ECE) 150 A protected version only Harmonisation of vehicle regulatiolns regard- 175 A protected version only 200 A both versions ing electromagnetic compatibility EN 61000-6-2: 2005 EPR10 - P7 F1 G2 - HS S0 D2 - 200A ordering example EN 61000-6-3: 2007 Electrostatic EN 61000-6-2: 2005 Discharge (ESD) EN 61000-6-3: 2007 Humidity ISO 16750-4 2010 Temperature shock ISO 16750-4 2010 (Ice water shock test submersion test) Free fall ISO16750-3 2012 Degree of protection IP57 (except terminals of load cir cuit) Material moulded enclosure including epoxy with flammability rating VO UL 94: 1996 2 www.e-t-a.de 2010 trip time in ms