Hardwire this transformer into your panel. Use it to power low-voltage devices such as alarms and sensors. This product cannot be sold in California.

Smaller in height than standard backup power supplies, these fit in tight spaces. They transfer power to a built-in battery during brownouts and blackouts with only a momentary loss of power during transfer. They also protect against line noise and power surges. All have a USB connection and cord so you can save data and safely shut down an unattended computer during outage. Choose a power output equal to or greater than the power your equipment requires. Determine your volt-amps requirement by multiplying the amp draw of your equipment by 120V AC. Power supplies cannot be sold to the regions listed due to local energy efficiency requirements.

Protect sensitive equipment—these conditioners raise or lower current to keep it at a stable level during dips and surges. There is no battery transfer time during a power dip. During brownouts and blackouts, they transfer power to a built-in battery with only a momentary loss of power during transfer. Power supplies also protect against line noise and power surges. They have a USB connection and cord so you can save data and safely shut down an unattended computer during outage. Choose a power output equal to or greater than the power your equipment requires. Determine your volt-amps requirement by multiplying the amp draw of your equipment by 120V AC.

Transfer power to a built-in battery during brownouts and blackouts with only a momentary loss of power during transfer. These power supplies also protect against line noise and power surges. Choose a power output equal to or greater than the power your equipment requires. Determine your volt-amps requirement by multiplying the amp draw of your equipment by 120V AC. Power supplies cannot be sold to the regions listed due to local energy efficiency requirements.

Power supplies with a USB connection and cord allow you to save data and safely shut down an unattended computer during an outage.

Flip the switch to reverse the magnetic current and release your electromagnet's hold. Choose a power output wattage equal to or greater than the watts of your electromagnet. These transformers are rated NEMA 12 for protection from oil/coolant dripping.

Suitable for high-speed automated applications, these transformers reverse the magnetic current and release your electromagnet's hold faster than other electromagnet transformers. Turn off the transformer and the magnetic current reverses automatically for release. The transformer's power output wattage should be equal to or greater than the watts of your electromagnet. All are rated NEMA 12 for protection from oil/coolant dripping. Also known as rectifiers.

Change AC voltage to DC voltage to power extremely sensitive audio, measuring, and testing devices while keeping electronic interference—often called output or ripple noise—from passing on to the device. The lower the output noise value, the less interference the power supplies will create. Although they create less noise than other power supplies, these power supplies are larger, heavier, and give off more heat.

Designed with linear voltage regulation, these power supplies produce the same voltage regardless of changes in the input voltage or the amount of current being drawn. They are also known as linear power supplies.

Power supplies with an output voltage selector switch let you toggle between two voltage and current output ranges.

View the output on a digital or analog display. Digital displays are often easier to read than analog displays, so you can quickly see if you need to make adjustments. Analog displays are better than digital displays for monitoring fast output changes, such as dips and spikes.

If you exceed the maximum load or current, all of these power supplies will shut down to protect both the power supply and the connected device. Those with overvoltage or over temperature protection will shut down if you exceed the maximum voltage or temperature.

UL and C-UL listed power supplies meet U.S. and Canadian safety standards.

Convert AC voltage into the DC voltages needed to test, design, and prototype a wide variety of electrical circuits and equipment. These power supplies let you adjust the output to the exact voltage needed to power your equipment. You can also set limits on the maximum current to protect your equipment from damage. Keep an eye on the voltage and current drawn by your connected components with the digital display.

Since these use switching regulation, they produce the stated voltage despite fluctuations in your input power and the power being drawn by your system, and won’t become too hot.

When these power supplies convert AC voltage to DC voltage, some noise from the AC voltage will carry into the output. While this won't affect most applications, this noise can interfere with other signals in extremely sensitive applications. The lower the output noise, the less interference it creates.

These power supplies are CE Marked, which means they meet European Union safety standards. If your power supply exceeds the maximum current, voltage, or load, they’ll shut down to protect both the power supply and the connected equipment. Some also protect against excessive temperatures.

Power supplies with output voltage selector switch let you choose either an adjustable output, which you control with a dial, or an output fixed at 13.8V DC.

Connect the banana plugs on your equipment to the socket output connections. Power supplies with USB output connections can also charge phones and other devices with USB ports. You can use more than one output at the same time, but you can’t adjust them independently—all outputs are set to the voltage you select.

Use your computer to remotely control these power supplies that convert AC voltage to DC voltage for powering electronics from simple prototypes to advanced testing equipment. All of these power supplies include a USB cable and Windows-compatible software to control, monitor, and record the voltage, current, and power outputs of your device. You can also create programs with up to 20 steps that change voltage and current outputs at set times. A selector switch lets you quickly choose up to three defined settings for voltage and current outputs. The power supplies have an auxiliary output connection, but it will take on the same settings as the primary outputs. View the outputs on their digital display.

These power supplies use switching regulation, which means they produce the stated voltage despite fluctuations in your input power and the power being drawn by your system, and they won’t become too hot. If you exceed the maximum voltage, current, load, or temperature, the power supplies will shut down to protect both the power supply and the connected device.

Power supplies with remote voltage sensing check for any drops in the voltage as they send power to a device. If the voltage dips, they can compensate with extra power, so connected devices always receive the correct voltage.

Maximum output noise is also known as ripple noise. When power supplies convert AC voltage to DC voltage, some noise from the AC voltage will carry into the output. While this noise won't affect most applications, it can interfere with other signals in extremely sensitive audio, measuring, and testing equipment. The lower the output noise, the less interference it creates.

No need to adjust the voltage on these power supplies—they’re specifically designed to convert 120V AC to 13.8V DC. This voltage is common in radio transmitters, battery chargers, and automotive electrical systems, so these power supplies are often used to develop and test electronics that will be used in those applications. Since they are not adjustable, there’s no risk of supplying the wrong voltage and damaging your equipment.

These power supplies have linear voltage regulation, which means they produce the same voltage regardless of changes in the input voltage or the amount of current being drawn. They are also known as linear power supplies. They have extremely low noise output, meaning that they keep electronic interference (also known as output noise or ripple noise) from being passed on to your device. However, these power supplies are larger, use more energy, and give off more heat than switching power supplies with a similar output.

If you exceed the maximum load or current, they’ll shut down to protect both the power supply and the connected equipment. Power supplies with overvoltage protection will also shut down if you exceed the maximum voltage.

When selecting power supplies, make sure the output connection is compatible with your equipment. Threaded stud output connections work with wire leads. Wrap the wire around the stud and secure with the included nuts, or attach alligator clips to the studs. Test leads with banana plugs can be plugged into socket output connections.

Power supplies that are UL and C-UL listed meet U.S. and Canadian safety standards.

Convert 120V AC to six common DC voltages with these power supplies. They’re often used for simple, low-power tests on electrical circuits and devices, as well as for prototyping. Plug your equipment into the output sockets with banana plugs, and slide the selector switch to choose the voltage.

These power supplies use switching regulation, which means they produce the stated voltage despite fluctuations in your input power and the power being drawn by your system. It also means they won’t get too hot.

When they convert AC voltage to DC voltage, some noise from the AC voltage will carry into the output. While this won't affect most applications, this noise can interfere with other signals in extremely sensitive applications. The lower the output noise, the less interference it creates.