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Programmable Power Guard Phidget

Product Code: SAF1000_0
Excl. VAT: £92.34 Incl. VAT: £110.81
  • Buy 5 for £83.49 (£100.19 incl. tax) each and save 10%
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Protect your circuit and power supply by detecting and preventing overvoltage and overtemperature situations.

When high-power motor stalls or stops suddenly, it can generate a high-voltage surge that can damage the circuitry of the motor controller and burn out the power supply. This Power Guard Phidget is designed to protect your hardware from such an event by preventing current from flowing back into the power supply, and by providing a heatsink and fan for the excess power to dissipate. This board is designed for high current systems and is capable of protecting your equipment from even the largest of power spikes. Simply connect your power supply's positive wire to the 8-30V input lug, connect your device's positive wire to the output lug, and wire both grounds to the ground lug.

Power Control and Safety Features

Since this is an intelligent VINT device, the over voltage trigger can be modified in software to accomodate for different power supplies. Similarly, the fan can be switched on or off, or it can be set to turn on when a certain temperature threshold is passed. You can also choose to switch the power off through software, like a relay. Even if communication between this board and the computer is interrupted, it will continue to power the device and protect against the last chosen overvoltage trigger.

Isolated for Stability

The VINT port on this board is electrically isolated from the rest of the board in order to improve stability by eliminating ground loops.

We strongly recommend using this Phidget according to the table below:

Recommended Use

Controller Motor Rated Current Suggested Power Guard 
STC1000 Less than 1.5A  None 
STC1000 1.5A to 5A  SAF2000
STC1000 Greater than 5A  SAF1000
DCC1000 Less than 1A  None 
DCC1000 1A to 5A  SAF2000
DCC1000 Greater than 5A  SAF1000


Board Properties
Controlled By VINT
Power Supply Protector
Overvoltage Setting Selectable via software 8 - 33 VDC
Overtemperature Trigger 125 °C
Sampling Interval Min 100 ms/sample
Sampling Interval Max  60 s/sample
Fan Trigger 75 °C
Electrical Properties
Continuous Current 50 A
Current Consumption Min (VINT Port) 100 μA
Supply Voltage Min 8 V DC
Supply Voltage Max 30 V DC
Power Consumption 250 mW
Physical Properties
Recommended Wire Size 6 - 14 AWG
Operating Temperature Min -40 °C
Operating Temperature Max 85 °C

Whenever possible, items which are in stock are dispatched the same day, or the next working day.

Large and/or heavy items are dispatched by UPS courier service and these orders must be placed before 15:00hrs (GMT) to ensure same day dispatch.

Small items are normally sent using a Royal Mail service for UK orders, and International Airmail or UPS for overseas orders

Returns Policy

Programmable Power Guard Phidget



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