Battery Isolation Switch E-1073-437 Description Single pole circuit breaker type 437 featuring an additional electronic function module which limits the duration of the supply to the remote disconnect and re-connect coils, avoiding damage in the event of unusual operating circumstances. Available with undervoltage monitoring option to protect batteries from the effects of deep discharge, status output for undervoltage, auto reset feature. Typical applications Battery and cable protection for all types of vehicle (including electric), battery powered systems. E-1073-437 Ordering information Type No. E-1073 control unit for type 437 with remote control Voltage rating 0 DC 12 V 1 DC 24 V Control mode 1 ON/OFF control input 00 without additional function 02 with undervoltage protection and status output 2 ON and OFF buttons 33 with control current supply and ON/OFF test input Circuit Breaker 437 single pole circuit breaker (double pole upon request) Enclosure design (optional) blank without enclosure B3 moulded housing Terminal design K60straight flat screw terminal (for use without housing) K12screw terminal, angled 90° (for use with B3 or B35) Mounting 5 mounting brackets for surface mounting Characteristic curve 06 fast trip 07 delayed trip Auxiliary contacts Si01one N/C and two N/O Remote ON and OFF operation FC12 DC12V, remote ON/OFF FC24 DC24V, remote ON/OFF Suffix 173027 standard Current ratings 80 A, 100 A, 120 A, 160A, 180 A, 200 A, 240 A E-1073-1 1 02 - 437-B3 -K60-5 - 06 -Si01-FC12 - 173027 - 240 A ordering example The exact part number required can be built up from the table of choices shown above. Ordering references for optional features should be omitted if not required. Technical data of circuit breaker see type 437 Technical data – Electronic module Voltage rating Voltage rating range Temperature range electronic control unit Operating current Excitation time Switching frequency Power consumption of electronic control unit Control inputs DC 24 V ON 18 - 32 V OFF 16 - 32 V Correct switching performance is not guaranteed if the voltage falls below the minimum value. -40...+80 °C (-40...+176 °F) ON approx. 15 A OFF approx. 20 A ON typically 100 ms OFF typically 20 ms 0.1 Hz max. typically < 1 mA (when switched off or button operated) E-1073-.1..: »E/A« (ON/OFF), »U-AUS« (undervoltage protection OFF), »A-W« (auto reset) voltage ON (high) OFF (low) power consumption EMC E-1073-.2..: »T-EIN« (button ON), »T-AUS« (button OFF) max. 32 V >8V <3V DC 24 V: typically 5 mA according to DIN 40839/ISO 7637 Reverse polarity protection If polarized incorrectly, the circuit breaker will trip after a few seconds. Undervoltage protection optional with E-1073-.1.. switching thresholds DC 24 V: 22.8 V ± 0.2 V hysteresis typically 0.5 V trip time typically 40 sec Undervoltage status output »UST«, optional with E-1073-.1.. transistor output minus switching current load corresponding to 2 W lamp load, short circuit proof Control current supply »+US2«, with E-1073-.2.. for T-EIN/T-AUS May be connected to 20 control inputs. Noise-voltage proof, short-circuit proof Terminals control terminals blade terminals 6.3x0.8 mm Mass 1646 2 www.e-t-a.de approx. 2,000 g without enclosure 1 Battery Isolation Switch E-1073-437 Features Control functions Multiple functions in one unit - High performance circuit breaker providing battery and cable protection from overloads and short-circuits. - Master switch for ON/OFF operation - Electrical remote control - Undervoltage protection with status output - Auxiliary contacts (e. g. for generator disconnection) - Active reverse polarity protection of the entire vehicle electrical system l Current ratings to 240 A (higher voltage ratings to special order) l Closed-circuit current consumption < 1 mA l Technical description E-T-A circuit breaker 437 combined with electronic control unit E-1073 will meet a wide range of requirements. 2 Circuit breaker The main switching contacts will open the plus, the minus or both poles according to model and application. l Series E-1073-....437 Single pole thermal-magnetic circuit breaker for current ratings up to 240 A, to protect the vehicle electrical system from overloads and short circuits. Electronic control unit An electronic control unit enables the basic on/off function and two additional functions. The system voltage is connected across terminals +UB/-UB to provide the supply to the control unit and a feed is taken from +US1 for the remotely sited operating switch(es). The quiescent current drain is typically less than 1 mA, with a short duration excursion during excitation of the ON/OFF coils. Basic function Switch ON/OFF Operation of the ON control switch will energise the switch-on coil for approximately 100 ms causing the main switching contacts to latch closed. Operation of the OFF control switch will cause the disconnect coil to trigger the release of the switching mechanism within approximately 20 ms. Both coil circuits are current limited to prevent damage through overheating. Manual operation An optional external operating knob is available to provide manual control in addition to electrical ON/OFF operation. Type 1 E-1073-.1.. with ON/OFF switch ON/OFF control switch input (»E/A«) The battery isolation switch can be operated on or off by an external control switch to plus. Undervoltage protection (optional) This optional feature protects the battery from deep discharge should electrical loads be left on. The battery is automatically disconnected whenever the voltage falls below a critical value for more than 40 s. The unit is reset by operation of the control switch. Sustained undervoltage after reconnection causes the unit to disconnect again after approx. 40 s. Overriding the undervoltage protection (»U-AUS«) Undervoltage protection may be overridden if required by connecting control output »U-AUS« to plus terminal or terminal 15. Undervoltage status output (»UST«) Undervoltage is signalled immediately via the minus-switching, short-circuit proof transistor output (2 W lamp load). Type 2 E-1073-.2.. with ON/OFF button ON/OFF control inputs (»T-ON/T-OFF«) ON/OFF function is provided by two external switches with a central control function, i. e. several systems can be operated simultaneously. Additional control current supply (»+US2«) If several circuit breakers/battery isolation switches are operated in parallel, switches can be supplied with control current from any of the electronic control units available. This power source is short-circuit proof, protected from noise voltages and will operate for 20 inputs. Additional control input »ON/OFF Test« (»E/A«) This control input can be used for maintenance purposes. The battery isolation switch is switched on when plus voltage is applied, and switched off when plus voltage is removed. Note The circuit breaker should be in the OFF condition when connecting or replacing the battery. Observe instructions for installation! Reverse polarity protection In the event of reverse polarity connection, the electronic control unit will immediately operate the battery switch to isolate the entire electrical system. The circuit breaker will trip after a short delay to protect the operating coils and must be re-set once the fault has been corrected. 2 www.e-t-a.de 1646 Battery Isolation Switch E-1073-437 Dimensions Connection diagrams E-1073-.1…-437 control function ON/OFF switch E-1073-…-437-…-K60-… load CB 6 FA double contact ≥ 125 A a 4 .157 3 122 4.80 II 11 13 23 series 437 L11 green FA FE FE 4 L12 brown L15 blackred L13 brown Aux. contact 23-24 pre-wired with option “autoreset” and/or housing B35. 5 b ( I> A-W FE +US1 ON/OFF U-OFF UST. b -UB L14 grey L8 white L6 yellow L5 grey 72 2.84 92 3.62 94 3.70 L7 orange CB L1 red 6 5 L10 black a 23 24 L4 grey 13 14 L3 brown 11 12 L2 grey 141 5.55 167 6.58 2 .079 45 1.77 Electronic control unit 9 +UB 10 -UB I 1 2 terminal strip 3 4 5 6 +US1 ON/OFF U-OFF UST. 7 8 12 14 24 battery undesrvoltage status power supply + + max. 2 W ON / OFF UVP OFF switch E-1073-.2…-437 control function ON/OFF button load M5 9 .354 M10x25 tightening torque max. 4 Nm b 57 2.24 FA II 11 13 23 series 437 3 L11 green FE +US1 ON/OFF T-OFF +US2 Electronic FE 4 L12 brown FA L13 brown T-ON -UB 6 L1 red 5 L10 black L9 violet L8 white L7 orange L6 yellow L5 grey L4 grey L3 brown L2 grey I> conrol unit CB 8 T-ON 9 +UB 10 -UB I 1 2 3 4 5 +US1 ON/OFF T-OFF terminal strip ON / OFF test OFF button 2 double contact ≥ 125 A a 6 +US2 7 +US2 ON button 12 14 24 battery power supply This is a metric design and millimeter dimensions take precedence ( mm ) inch 1646 www.e-t-a.de 3 Battery Isolation Switch E-1073-437 Typical applications For road vehicles, e.g. buses and coaches Series E-1073-1102-437... For rail vehicles, e.g. underground carriages Series E-1073-1233-437... In this application, the E-T-A combined battery switch/circuit breaker has several functions: In this application, the E-T-A combined battery switch/circuit breaker has two functions: l l l l l l l 2 High performance circuit breaker rated at 240 A, providing battery and cable protection from overloads and short circuits. Isolation switch, for ON/OFF operation (e. g. for main system disconnection). Remote control via external, low-current circuit. Undervoltage protection from battery deep discharge should electrical loads be left on. Early under voltage signalisation via a warning lamp (undervoltage status output), located as required. Undervoltage operation can be overridden if required. Auxiliary contact to disconnect the generator field. Reverse polarity protection through immediate disconnection of the entire vehicle electrical system if the battery is incorrectly connected. l l High performance circuit breaker providing battery and cable protection from overloads and short circuits. Isolation switch between battery and loads. In this application, an ON/OFF remote control switch can be provided in both the first and last carriages. This will enable all batteries to be disconnected from the power distribution system by the operation of one control, irrespective of its location. In the same way, all batteries can be re-connected by the operation of a single control switch. This is extremely helpful during coupling/de-coupling of carriages for example. In addition the E/A test input permits the operation of individual battery switch/circuit breakers during maintenance. control circuit These functions allow the number of components and cables required to be reduced, with significant space and weight saving benefits. OFF + underground carriage battery + E- 1073-1233-437E-T-A E-1073-1233-437- + control – load circuit l II 5 series 437 L13 brown 8 9 +UB undervoltage status + max. 2 W + ON / OFF UVP OFF button Kl. 15 10 -UB load battery – ON/OFF 4 ON/OFF test + – OFF underground carriage + – battery + E- 1073-1233-437E-T-A E-1073-1233-437- load circuit 12 14 24 + control II 5 + T-OFF - 6/7 +US2 I> ON battery 8 control cable “ON” terminal strip 7 control circuit 5 control cable “OFF” L8 white L7 orange L6 yellow L5 grey L4 grey L3 brown L2 grey L1 red 6 I 3 4 5 6 +US1 ON/OFF U-OFF UST. +US1 3 10 -UB CB 2 -UB + (External power supply not shown) Electronic control unit +US1 ON/OFF U-OFF UST. 1 +UB I> FE L10 black FA 4 I 9 I T-ON +UB -UB +US1 3 load L12 brown generator field disconnection double contact ≥ 125 A FE I> T-ON 9 + 10 – battery L11 green 87a 31 II 11 13 23 a 3 85 87 30 8 control cable “ON” FA 86 +US2 ON control cable “OFF” b Kl. 15 generator D+ vehicle electrical system T-OFF 6/7 ON/OFF 4 ON/OFF test + – This is a metric design and millimeter dimensions take precedence ( mm ) inch 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 Battery Isolation Switch E-1073-437 2 1646 www.e-t-a.de 5 2 1646 www.e-t-a.de 6