A light electric drive project rarely starts with wattage alone. The practical starting point is usually the battery platform, followed by the power range, rated current, speed target, torque requirement, mounting space, and the load the system is expected to move. Kunray MY1020 brushless motor options include 36V1000W, 48V1000W, 48V1500W, 48V1600W, 48V2000W, 60V2000W, 60V2500W, and 72V3000W versions, so the first step is not to ask which one is best. It is to narrow the question to the voltage and power band that fits the project.
The voltage platform should come before the power label because it sets the electrical starting point for the rest of the selection process. A 1000W motor offered in both 36V and 48V versions does not lead to the same inquiry. The 36V1000W version is listed with 27. 7A, 5. 7N. m, and 3100RPM, while the 48V1000W version is listed with 20. 8A, 5. 1N. m, and 3500RPM. Both carry the same 1000W label, but the current, torque, and RPM values are different. That is why a technical selector should first define the nominal voltage platform, then ask which version data applies to that platform. This order avoids a common mistake: treating wattage as a standalone result. Electrical power is tied to voltage and current, so two versions with the same power target can still raise different questions about current demand and system sizing. For a 48V build, the first candidates are usually 48V1000W, 48V1500W, 48V1600W, and 48V2000W, depending on the planned load, speed range, and electrical headroom. The 60V and 72V versions shift the decision again. Kunray lists 60V2000W and 60V2500W versions, followed by a 72V3000W version. The 60V2000W version is listed with 35A, 5. 1N. m, and 4250RPM, while the 60V2500W version is listed with 45A, 5. 6N. m, and 4400RPM. The 72V3000W version is listed with 45A, about 5. 4N. m, and 4900RPM. These values are useful for filtering, but they should remain tied to their own versions.
RPM, torque, and current should be read together because each one answers a different selection question. RPM describes rotational speed under the stated motor condition, torque describes turning force, and current describes the electrical demand associated with that version. NIDEC’s motor reference material treats torque as a core motor parameter, and standard motor ratings are generally meaningful only under defined conditions. For MY1020 selection, that means the published values help compare versions, but they do not become a fixed vehicle speed, load capacity, climbing result, runtime, or efficiency result on their own.
The safest way to read the MY1020 range is to keep each voltage and power combination intact. For 48V choices, 48V1000W is listed at 20. 8A, 5. 1N. m, and 3500RPM; 48V1500W is listed at 30A, 5. 1N. m, and 3750RPM; 48V1600W is listed at 34A, 5. 1N. m, and 3900RPM; and 48V2000W is listed at 42A, 6. 9N. m, and 4300RPM. Those numbers should not be averaged, rearranged, or used to describe another version. The same rule applies to 36V1000W, 60V2000W, 60V2500W, and 72V3000W. A project team that keeps each data set separate can ask cleaner questions: whether the target voltage is fixed, whether the current demand is acceptable, whether the RPM range suits the drive design, and whether the torque value points to a more suitable power band.
The 72V3000W version has a higher-power signal: 4900RPM, about 5. 4N. m, 45A, and an approximate 100-200KG load clue. That load clue should be treated as a version-specific reference, not as a universal MY1020 promise and not as a guaranteed result for every vehicle layout. Actual load behavior depends on the wider build, including gearing, wheel size, vehicle mass, duty cycle, mounting, operating surface, and control settings. For selection work, the useful purpose of this clue is to explain why a project is being considered for 72V3000W rather than 60V2500W or 48V2000W. A stronger inquiry includes the expected load range, voltage platform, speed target, and whether the existing design can support the electrical and mechanical demands.
A practical MY1020 inquiry can usually be narrowed before asking for a quotation. If the project platform is fixed at 36V and the target is around 1000W, the 36V1000W version becomes the natural starting point, with its listed 27. 7A, 5. 7N. m, and 3100RPM values. If the platform is 48V, the range is wider: 48V1000W for a lower-power inquiry, 48V1500W or 48V1600W for a middle step, and 48V2000W when the project points toward higher current and torque within the 48V group. If the platform is 60V, 60V2000W and 60V2500W create a narrower comparison. If the project is already built around 72V and higher output, 72V3000W becomes the direct version to discuss. This filtering method is more useful than asking for a universal recommendation because it respects the way ratings work. IEC 60034-1 reflects the broader principle that motor ratings and performance descriptions need defined conditions. In commercial selection, the practical lesson is straightforward: use the MY1020 version data to reduce the candidate range, then confirm the details that are not fully defined by the version name. Kunray MY1020 versions share a few family-level facts, including brushless motor positioning, T8F 11T sprocket type, and an approximate diameter of 95MM ± 0. 11MM across the listed specifications. At the same time, each version carries its own current, torque, RPM, and weight values, so a 72V3000W note should not be moved onto a 48V1500W inquiry. It also makes sense to separate motor version selection from other configuration questions. Motor with bracket, motor without bracket, Standard, and With heat sink are all relevant choices when the project scope is being narrowed. The same is true for pricing, sample availability, order quantity, current stock, lead time, packaging details, and whether a different power or base configuration should be discussed. Those are configuration and commercial questions, not proof that a motor will deliver a fixed speed, runtime, climbing ability, lifetime, or certified system result. For project selection, the strongest request is a concise specification map: target voltage, candidate power range, expected load clue, desired RPM or gearing direction, current limit, mounting preference, and the version or versions under consideration.
MY1020 selection is most effective when the buyer reads the range in order: voltage platform, power band, current demand, torque and RPM, then project load clues. The Kunray range provides enough public version data to narrow an inquiry from a broad 36V-72V search into a realistic candidate group, such as 48V1000W-2000W, 60V2000W-2500W, or 72V3000W. The next step is to send the target voltage, load information, preferred mounting option, heat sink preference, sample or order quantity, and purchasing requirements so the correct version, quotation, quantity, lead time, stock status, and available configuration can be confirmed.
Q：Which MY1020 motor version should I ask about for a 48V build?
A：For a 48V build, start with the 48V versions rather than comparing every MY1020 option at once. Kunray lists 48V1000W, 48V1500W, 48V1600W, and 48V2000W, each with its own current, torque, and RPM data. A lower-power inquiry may begin with 48V1000W, while a project that needs a higher power band may move toward 48V1500W, 48V1600W, or 48V2000W after the expected load, current limit, and speed requirement are described.
Q：Can the 72V3000W MY1020 motor data be applied to every MY1020 version?
A：No. The 72V3000W data should stay with the 72V3000W version. Its 4900RPM, about 5. 4N. m torque, 45A current, and approximate 100-200KG load clue should not be applied to 36V1000W, 48V versions, or 60V versions. Other MY1020 versions have their own listed RPM, torque, current, and weight values, so selection should keep each version’s data separate.
Q：Why should RPM, torque, and current be reviewed together before inquiry?
A：RPM, torque, and current describe different selection questions. RPM helps frame rotational speed, torque helps frame turning force, and current helps frame electrical demand for the specific version. Reviewing only one value can lead to a weak inquiry because the same voltage or power label may not represent the same operating picture. A stronger inquiry gives the target voltage, candidate power, load clue, desired speed direction, current limit, and mounting preference together.
2-2-1. What Is a Brushless DC Motor?
Kunray MY1020 High Speed Brushless Motor 48V 60V 72V 1000W-3000W
