|
TRAY MOUNT EXPBUS 2V - The EXP BUS mounting tray is the ultimate in quick build time savings. The tray comes Pre-punched, and pre-assembled with rocker switches prewired to the PC board. All the builder needs to do is to cut a single rectangular hole in the panel, connect the battery, alternator, and all of the load wires to the proper terminals on the EXP BUS2 PC board mounted in the chassis.
14V DC systems (not recommended for 28V aircraft)
|
|
KITPLANE ELECTRICAL SYSTEM ON A
PC BOARD:
• EXPBUS II--Second generation design
• Simplifies and organizes wiring
• Saves time, panel space, weight, and money
• Solid state "fuses" eliminate breakers
• Avionics master switch/starter cutout
• "Soft Start" extends landing light life
• Overvoltage protection
• Clearance delivery input for NavCom
• Dual bus option for backup battery
• A Complete Electrical System |
 |
The EXPBUS 2 DC Load Center replaces all but one circuit breaker in most homebuilt aircraft, and includes the master switch, master relay, and the avionics master switch. The avionics output bus provides six protected circuits, and automatically shuts off when the starter is engaged. Three master bus outputs operate items such as panel lights, gyros and engine instruments. Switched outputs include the alternator field, Beacon/Strobe output, nav light output, aux fuel pump output, two landing light outputs, and two spares. All outputs are overload protected, eliminating the need for fuses or circuit breakers, and saving the labor of installing and wiring them up.
Better Than Fuses
EXPBUS II products are solid state protection devices that function very much like circuit breakers. When overloaded, these devices "blow," and the offending circuit safely shuts down. Unlike a fuse, the devices reset themselves, unharmed, after the load is removed for several seconds. Unlike breakers, there are no contacts to weld "on." Once tripped, these devices will remain "off" until the original load is completely removed for several seconds. These proven devices are annually used in hundreds of thousands of automobiles.
Free Time For Sale
Mounting requires drilling a few holes in the panel and bolting the unit in. Connect the battery cable directly to the terminal, and power leads from any devices such as radios, lights, gyros, and pumps to the proper switch or terminal on the PC board. Install one 40 amp breaker between the alternator and the PC board. All other outputs from the PC board are overload protected. There are no other fuses or circuit breakers to buy or install. Just think of the drilling, mounting, cutting, crimping, routing, labeling, and troubleshooting you will save (not to mention skinned knuckles and bleeding fingers). AND, while you save time, you will be getting a clean high-tech installation, with virtually no unfused wiring behind the panel. The switches can even be easily removed from the PC board, allowing the board to be remote mounted, anywhere in the aircraft.
Advanced Features
The Clearance delivery circuit allows one avionics bus output to be powered up with the master switch off--very handy at busy airports. The overvoltage protection circuit locks out the alternator field if the bus voltage ever exceeds 18 volts. The landing light outputs feature "soft start" circuits to greatly extend landing light bulb life. With the backup battery option, the two AUX outputs and one nav-com can automatically be powered by a standby power source in the event of a failure of the primary electrical system. The standby battery is automatically charged from the master bus during normal operation, eliminating the need for dual alternators in most cases.
|
SPECIFICATIONS:
Maximum Current Capacity - 40 Amps
Bus Voltage - 14 Amps
Keep-Alive Output (1, not switched) - 3 Amps
Master Outputs (2, always on with master) - 1 Five Amp, 1 Seven Amp
Instrument Light Output - 3 Amps
AVIONICS MASTER OUTPUTS: (6)
1 Seven Amp Output
2 Five Amp Outputs
3 Three Amp Outputs |
SWITCHED OUTPUTS:
Master Switch/Avionics Master
Alternator Field - 5 amps
Beacon/Strobe - 7 amps
Nav Lights - 7 amps
Aux. Pump - 7 amps
LDG/Taxi - 9 amps
LDG/Taxi - 9 amps
Aux.Output (2) - 11 amps |
The above current ratings are based on "recommended" operating current. Traditional fuses and circuit breakers are rated in terms of "maximum" operating current. A 9 amp polyfuse circuit is roughly comparable to a 14 amp fuse or breaker. The above fuse sizes are a good match for most sport aircraft, your project will probably work well with this configuration.
Size: 9.75" long by 4.625" deep by 1.875" tall. Weight 0.8 lbs. |
| TRAY MOUNT EXPBUS 2V |
P/N 11-00430 $424.00
|
| |
| |
|
| |

|
The EXPBUS II is a lifesaver when wiring up your homebuilt project. The EXPBUS II is a complete electrical system on a special high current, printed circuit board.
14V DC systems (not recommended for 28V aircraft)
|
|
KITPLANE ELECTRICAL SYSTEM ON A PC BOARD:
- EXPBUS II--Second generation design
- Simplifies and organizes wiring
- Saves time, panel space, weight, and money
- Solid state "fuses" eliminate breakers
- Avionics master switch/starter cutout
- "Soft Start" extends landing light life
- Overvoltage protection
- Clearance delivery input for NavCom
- Dual bus option for backup battery
|
SPECIFICATIONS:
- Maximum Current Capacity - 40 Amps
- Bus Voltage - 14 Amps
- Keep-Alive Output (1, not switched) - 3 Amps
- Master Outputs (2, always on with master) - 1 Five Amp, 1 Seven Amp
- Instrument Light Output - 3 Amps
|
AVIONICS MASTER OUTPUTS: (6)
- 1 Seven Amp Output
- 2 Five Amp Outputs
- 3 Three Amp Outputs
- Maximum Current Capacity - 40 Amps
- Bus Voltage - 14 Amps
- Keep-Alive Output (1, not switched) - 3 Amps
- Master Outputs (2, always on with master) - 1 Five Amp, 1 Seven Amp
- Instrument Light Output - 3 Amps
|
SWITCHED OUTPUTS:
- Maximum Current Capacity - 40 Amps
- Bus Voltage - 14 Amps
- Keep-Alive Output (1, not switched) - 3 Amps
- Master Outputs (2, always on with master) - 1 Five Amp, 1 Seven Amp
- Instrument Light Output - 3 Amps
|
The above current ratings are based on "recommended" operating current. Traditional fuses and circuit breakers are rated in terms of "maximum" operating current. A 9 amp polyfuse circuit is roughly comparable to a 14 amp fuse or breaker. The above fuse sizes are a good match for most sport aircraft, your project will probably work well with this configuration. For a small additional charge, we can configure your board with any size (1 to 11 amps) breakers in any position.
Size: 7.8" long by 3" deep by 1.9" tall. Weight 0.8 lbs. |
| |
| EXPBUS2V |
P/N 11-00431 $299.00
|
| |
|
| |
|
 |
INDICATOR MODULE - Annunciators for each solid state breaker on the EXP BUS
* Over and undervoltage warning lights
* Ammeter display
* Instrument light dimmer circuit
* Single ribbon cable installation to EXP Bus |
The Indicator module is an accessory for the EXP BUS DC LOAD CENTER. This optional accessory provides several enhancements to the basic load center, all mounted in a small panel mount module, 4.6 inches long, and 2 inches wide. The module extends 2 inches in depth, behind the panel. The module provides an annunciator output for each fused output on the LOAD CENTER, which illuminates if the circuit is tripped. It also provides OVER and UNDER VOLTAGE annunciators, an AMP-METER indicator, and a light dimmer circuit for the instrument lights.
CIRCUIT TRIP INDICATORS The circuit trip indicators show the status of each load center output, and if any output has been overloaded and tripped, the appropriate indicator will illuminate. These high brightness solid state lamps are dimmable. The lamp will remain illuminated until the load is removed (the circuit is switched off). If no circuits are tripped, the indicators will all be dark.
OVER VOLTAGE and UNDER VOLTAGE The OVER VOLTAGE and UNDER VOLTAGE warning lamps illuminate whenever the bus voltage is below 11.5Volts, or above 16 Volts. (22 to 30V for 28V systems) These bright indicators are also dimmable.
AMMETER The AMMETER function uses a shunt built into the EXP BUS product. The ammeter indicates current flow into or out of the battery, from -40 to plus 60 amperes.
MOUNTING The Indicator mounts in a 4.25 by 2.0 inch rectangular hole in the panel. A flat black bezel and lens assembly compliments your instrument panel. |
| INDICATOR MODULE CVEXP 130 |
P/N 11-00432 $162.95
|
| |
| |
|
| |
|
 |
Mounting Brackets CVEXP 135 |
| Mounting brackets to simplify mounting the PC board in the aircraft. Put things where you want them to be. Free Shipping on this item. |
| MOUNTING BRACKETS CVEXP 135 |
P/N 11-00433 $21.95
|
|