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E-1073-0100-437-B3-K60-5 Arkusz danych(PDF) 2 Page - ETAL Group |
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E-1073-0100-437-B3-K60-5 Arkusz danych(HTML) 2 Page - ETAL Group |
2 / 6 page Battery Isolation Switch E-1073-437 www.e-t-a.de 1646 2 2 Features l 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 Technical description E-T-A circuit breaker 437 combined with electronic control unit E-1073 will meet a wide range of requirements. 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. 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. Control functions 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! |
Podobny numer części - E-1073-0100-437-B3-K60-5 |
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Podobny opis - E-1073-0100-437-B3-K60-5 |
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