Spec sheets
Technical information explained
This page explains the different parameters listed on our product pages.
For even more info on how our products work, how to set them up and how to get the most out of them, feel free to visit our Guides section!
| Specification | What it means |
|---|---|
| General information | |
| Dimensions [mm] | How big the unit is, given as length × width × height in millimetres. |
| Weight [g] | How much the unit weighs in grams, without any cables or mounting accessories. |
| Casing options | The housing styles available, such as open-frame for tight builds or an enclosed case for better protection. |
| Firmware | The firmware framework the ESC is made for. |
| Connectivity & interfaces | |
| Connectors | Both the power connectors and the logic connectors. Usually the logic connectors are JST connectors and the power connectors are screw terminals, so you can attach the DC supply and the phase wires with cable lugs. |
| Supported sensors | The position sensor technologies supported for your motor. Most medium-sized motors come with Hall-effect sensors (Hall sensors), while some small, high-RPM motors have no sensors at all. Very large motors tend to use encoders. Which sensor do I need? → |
| Logic & control | |
| Logic output voltage [V] | Our ESCs provide an internally regulated low-voltage rail for accessory electronics in your application. It is called the "logic output" because it is mostly intended for sensors and other secondary logic. This value is the voltage of that supply. |
| Logic supply current [A] | The current the logic supply can deliver. Exceeding this limit may interfere with the function of the drive, so be careful. |
| Electrical parameters | |
| Minimum input voltage [V] | The lowest voltage the controller can run on. Below this, it may behave unpredictably or shut off. |
| Maximum input voltage [V] | The highest voltage you should ever feed into the unit. Exceeding it risks permanent damage. |
| Maximum battery current [A] | The maximum current the controller will draw from your power supply, usually the battery. |
| Maximum motor current, continuous [A] | The current the controller can deliver to the motor continuously. It depends heavily on your cooling setup. Some of our controllers list a separate value for this, because their internal design limits it below the peak current even with perfect cooling. For controllers without a continuous rating, close to the peak value can be achieved continuously with adequate cooling. |
| Maximum motor peak current [A] | The maximum current the controller can handle for a short time. The amount is mostly defined by the transistors used in the design, while the duration depends on the cooling method. |
| Maximum duty cycle [%] | Defines the maximum output voltage available to the motor and therefore the maximum motor RPM. It is usually well above 90 %, which is sufficient for most applications. |
| Current sensor type | How the controller measures the current in the motor phases. The two main techniques are phase shunts and low-side shunts. Phase shunts are the de facto gold standard, as they measure the phase current directly where it is produced. They perform very well but are technically harder to implement, which makes them more expensive. Low-side shunts are a simple, indirect method and are often used in cost-optimised designs. |
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