Nakatanenga TEXU400 HANDBUCH tigerexped Instruction Manual

Nakatanenga TEXU400 HANDBUCH tigerexped

TECHNICAL SPECIFICATIONS & IMPORTANT INSTALLATION INSTRUCTIONS

The TEXU400 is a high-current DC distributor for a total of 400 A. Positive and negative bus bars for connecting batteries/battery banks and loads are integrated, as well asa pre-mounted shunt bridge on a divided negative bus bar for the optional integration of a current measurement device (such as a shunt) and / or a main switch. All individual circuits are protected by means of different fuses (not included!). Blown fuse monitoring is implemented for all connected loads. TEXU400 is ignition-protected against flammable gases in accordance with ISO8846.

SAFETY WARNINGS

Working on electrical systems requires specialized knowledge and should only be carried out by qualified personnel. Please also observe the battery safety instructions listed in your battery manual.

TECHNICAL SPECIFICATIONS

All information on wiring gauges in this document relates to a maximum ambient temperature of 50° Celsius / 122° Fahrenheit. We therefore strongly recommend not to route any cables within cable ducts. The specified wiring gauges and their maximum current load refer to open routing of all cables

CIRCUIT PROTECTION

The positive bus bar of the TEXU400 integrates connections for up to four battery banks, as well as for up to 10 high-current and four standard loads. Every single circuit is fuse-protected. Maximum permissible total current (continuous): 400 A at 35°C / 95° F and 350 A at 50°C / 122° F.Note the specifications in the following table:

FUSING

On the positive bus bar there are fused ports to connect batteries as well as loads.The TEXU400 holds space for a total of 15 fuses, one for each DC circuit. The spaces are suitable for the installation of MEGA, MIDI / AMI and ATO / ATC / ATP fuses.Always use fuses of correct voltage and amperage. Adjust the fuse ratings to the maximum voltages and currents that can potentially occur in the protected circuit,and remember that the load with the nominal amperage only allows short-term protection. Please refer to the data sheets of the fuse manufacturer and or the device in question regarding this.Use fuses with 32V for 12V and 24V systems and fuses with 58V for 48V systems.

BLOWN FUSE MONITORING

Use the stickers included with the TEXU400 to identify the circuits and place them on the front cover.The positive bus bar of the TEXU400 is equipped with fuse monitoring for each circuit. For connected loads, a blown fuse detection circuit shows tripped fuses via LED lighting, where the light is being routed through special light guides to the corresponding label on the cover to safely match the fuse in question and the corresponding label for easy identification even when the cover is closed.Please note: The blown fuse monitoring only shows defective fuses for connected loads. The fusing of the batteries and any connected chargers is not indicated by the TEXU400!

Note:
To enable the feature of blown fuse indication we intentionally allow a residual current parallel to the fuse. This current can potentially dimly light up very low power devices such as single LEDs within appliances or LED spots of all sorts even when fuse is blown or totally removed! Since this current is limited to around 1mA in 12V systems and around 5mA in 48V systems, this phenomenon does not pose any risk and is perfectly normal behavior.

BATTERY INPUT WIRING

A different number of battery banks and varying total currents require distinctive configurations of the system with regard to the wiring diameters.The positive supply is fed in via a maximum of 4 battery banks. Connections for max. current re possible with 3x AWG 2/0 (70 mm²) or 4x AWG 1/0 50 mm².The recommended wiring gauges are listed in the table below. Again, all data shown relates to an ambient temperature of maximum 50°C / 122° Fahrenheit.

Maximum Permissible Continuous Current

NEGATIVE BUS BAR

Each port on the positive bus bar has a corresponding bolt on the negative bus bar. The maximum wiring diameter to be used on the negative bus bar also corresponds to their respective counterparts in the positive side – AWG 2/0 (70 mm2) and AWG 1/0 (50 mm2). For diameters ≤AWG 2 (35 mm2), two cable lugs on a single bolt is permissible if needed, provided that this can be achieved in a mechanically sensible manner.

SHUNT BRIDGE
The split negative bus bar is equipped with a pre-mounted shunt bridge. It can be removed via the two 3/8“ (M10) bolt connections and replaced by the supplied insulating divider for integrating a current measuring shunt and / or a main switch.If the TEXU400 is to be used up to its rated current maximum of 400 A, the suitability of the cable used for connection of shunt and main switch must be ensured. If necessary, please order our special non-insulated ground cable to achieve a safe and secure connection:  tiger.jetzt/texu400

MOUNTING THE TEXU400

•  Install in an environment protected from moisture to avoid corrosion.
•  Choose the mounting location as close as possible to the batteries and high-current loads such as big inverters, winches or alike.
•  Do not mount directly above lead-acid batteries with ventilation in order to not expose the TEXU400 to corrosive gases.
•  The installation should take place on a non-flammable surface. Optionally, you can get a suitable mounting plate for separation:
•  tiger.jetzt/texu400
•  The TEXU400 complies with the ISO8846 standard. Therefore, it is ignition-protected against flammable gases and approved for mounting in the engine compartment. To comply with the standard, the front cover must be in place and securely locked with the central knob in order to achieve a tight seal between base and cover. Regardless of this, it should be noted that the maximum ambient temperature should not exceed 50° C / 122° F under any circumstances and that any electronics can experience cooling problems and thus performance losses as the temperature rises. If possible, all electrical components (including the TEXU400) should be installed in well-ventilated, rather cool locations.
•  For mounting on the surface, there is one central and various radially arranged boltholes available in the base of the TEXU400. Start the assembly with the central screw in order to be able to rotate the TEXU400 for a more precise alignment of ports and cables. To connect the wiring, all other bolts holes must also be used to avoid possible damage to the baseplate.

WIRING

•  Please only use approved cables with fine-wire stranded wire, such as automotive standard FLYR or FLY (see our cable range at tiger.jetzt/cable). Check regulations regarding cable choice for your application!
•  Due to heat development, it is advisable not to lay cables of high-current distributors in cable ducts. Please run them openly and securely fastened.
•  To connect the wiring, we recommend closed, uninsulated tubular cable lugs of tinned quality.
•  After crimping, insulate with a suitable piece of shrink tubing (suitable diameter, approx. twice as long as the straight section of the cable sheathing to be covered up to the bend in the tubular cable lug). The shrink tubing must not cover the contact surfaces!
•  When installing the cables on the TEXU400, note the torques stamped on the baseplate. The use of a suitable torque wrench is essential here.
• Connect the positive lines of the batteries to ports 3 – 6. Depending on the number of batteries used, the most powerful loads should follow directly (from port 4 when using a single battery). Ports 8 – 11 are intended for smaller consumers with MIDI fusing.

References

• tigerexped I Your Camper Conversion Shop

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