200-240V/203W PSU on an Xbox 360 Elite. What'll do? Burn or work?

I never really messed with a 360 but most likely it will burn up a fuse or a chip right of the bat(or several). Most electronics have that protection built in so the whole thing doesn't get fried. Then it would need repaired.

Logically, it will burn because the devices are manufactured so that they can withstand a certain voltage, if you place them more or less burns

It probably won't even fit since the connector is different for each of the different power supplies.

If you connect any electrical device to a power supply that states it puts out more power than is required you will likely cook the device you plug into it.

360 console power supply

About the Xbox 360 console power supply unit

Your Xbox 360 console has an external fan-assisted power supply unit (PSU). The PSU has the same basic design in all countries. The maximum dimensions of the PSU are as follows:

• The 220-240V power supply measures 8.62 x 3.03 x 2.13 inches (approximately 21.9 x 7.7 x 5.4 cm).
• The 110-127V power supply measures 8.42 x 3.03 x 2.13 inches (approximately 21.4 x 7.7 x 5.4 cm).

Some PSUs are shorter but have the same capabilities. For example, the PSU is slightly smaller in countries that use 110-volt electricity.

• Xbox 360 E console: Uses a 120-watt PSU
• Xbox 360 S console: Uses a 135-watt PSU
• Xbox 360 original console: There are several versions of the PSU for the original Xbox 360 console. Depending on the power requirements of the console, a 203-watt PSU, a 175-watt PSU, or a 150-watt PSU may have been included.

Notes

• Important Microsoft does not license any non-Microsoft accessories that plug into the Xbox console's power socket. Use of any accessory other than the standard Xbox 360 power supply may damage your console and void your console warranty.
• PSUs are designed to be used only in the countries or regions where they are sold because different regions have different power requirements. Using the power supply in a different country may damage the power supply or your Xbox 360 console, and the warranty
  may be invalidated.
• Unlicensed accessories, such as a non-Microsoft replacement power supply or any accessory that plugs in between the Xbox 360 console and the power supply, should not be used.
• The Xbox 360 power supply contains an internal fuse that helps protect your console from too-high voltage and power surges. However, the PSU is a sealed unit and, therefore, the internal fuse cannot be replaced. The power supply is rated for 245 watts of
  continuous power and 280 watts of maximum power.
• The 120-watt PSU and 135-watt PSU are interchangeable, and you can use both with the Xbox 360 S and Xbox 360 E consoles.

I just found out a better question that will make it more clear.

Will a Xenon PSU (The one i bought) work on a Jasper Xbox 360 (The one i have right now)?

If you connect any electrical device to a power supply that states it puts out more power than is required you will likely cook the device you plug into it.

360 console power supply

About the Xbox 360 console power supply unit

Your Xbox 360 console has an external fan-assisted power supply unit (PSU). The PSU has the same basic design in all countries. The maximum dimensions of the PSU are as follows:

• The 220-240V power supply measures 8.62 x 3.03 x 2.13 inches (approximately 21.9 x 7.7 x 5.4 cm).
• The 110-127V power supply measures 8.42 x 3.03 x 2.13 inches (approximately 21.4 x 7.7 x 5.4 cm).

Some PSUs are shorter but have the same capabilities. For example, the PSU is slightly smaller in countries that use 110-volt electricity.

• Xbox 360 E console: Uses a 120-watt PSU
• Xbox 360 S console: Uses a 135-watt PSU
• Xbox 360 original console: There are several versions of the PSU for the original Xbox 360 console. Depending on the power requirements of the console, a 203-watt PSU, a 175-watt PSU, or a 150-watt PSU may have been included.

Notes

• Important Microsoft does not license any non-Microsoft accessories that plug into the Xbox console's power socket. Use of any accessory other than the standard Xbox 360 power supply may damage your console and void your console warranty.
• PSUs are designed to be used only in the countries or regions where they are sold because different regions have different power requirements. Using the power supply in a different country may damage the power supply or your Xbox 360 console, and the warranty
  may be invalidated.
• Unlicensed accessories, such as a non-Microsoft replacement power supply or any accessory that plugs in between the Xbox 360 console and the power supply, should not be used.
• The Xbox 360 power supply contains an internal fuse that helps protect your console from too-high voltage and power surges. However, the PSU is a sealed unit and, therefore, the internal fuse cannot be replaced. The power supply is rated for 245 watts of
  continuous power and 280 watts of maximum power.
• The 120-watt PSU and 135-watt PSU are interchangeable, and you can use both with the Xbox 360 S and Xbox 360 E consoles.