Technical Data Sheet: 255-CZS48-055
Ratings at 1,500 RPM
| Duty | Power | Torque |
|---|---|---|
| Continuous — 55 Arms | 2.6 kW | 16.4 Nm |
| 60 minutes — 68 Arms | 3.2 kW | 20.3 Nm |
| 15 minutes — 110 Arms | 5.1 kW | 32.4 Nm |
Peak output is 6.8 kW and 46.7 Nm at 165 Arms.
Specifications
| Model number | 255-CZS48-055 |
|---|---|
| Frame size | 255 |
| Motor type | PM synchronous, surface magnet |
| Rated voltage | 48 VDC |
| Rated power | 2.5 kW |
| Peak power | 6.8 kW |
| Rated torque | 16.5 Nm |
| Peak torque | 46.7 Nm |
| Rated speed | 1,500 RPM |
| Rated / peak current | 55 Arms / 165 Arms |
| Rated frequency | 125 Hz |
| Torque constant | 0.3 Nm/Arms |
| Voltage constant | 0.305 Vrms/rad/s |
| Rotor inertia | 0.004057 kg·m² |
| Bearings | 6008-2Z/C3, 6006-2Z/C3 |
| Weight | 23 kg |
| Phases / power factor | Three phase / ≈ 1 |
| Efficiency | Designed for 93% |
| Winding | Star / Y, 100% copper |
| Insulation class | H, >500 MΩ at 500 VDC |
| Protection class | >IP64 |
| Magnet | NdFeB |
| Shaft | Hardened EN 24 |
| Core | Cold rolled silicon steel |
| Temperature sensor | PT 1000, 150 °C maximum winding |
| Cooling | Natural air, forced air optional |
| Mounting | Flange, foot |
16.4 Nm continuous at 1,500 RPM · 46.7 Nm peak · 255 frame
The 255-CZS48-055 is a 2.5 kW 48 volt BLDC motor at the lower end of the 255 range. It holds 16.5 Nm at 1,500 RPM on 55 Arms and reaches 46.7 Nm at 165 Arms.
It is the lightest 255-frame motor at 23 kg, and the least demanding on the controller — 55 Arms continuous is well inside what a mid-sized 48 V drive will deliver. Where a 145 frame runs out of torque but a full 255 is more machine than the job needs, this is the step in between.
Quality and compliance
Manufactured at our ISO 9001:2015 certified plant in Faridabad, India. Designed and tested to IEC 60034 — performance and rating to IEC 60034-1, IP64 enclosure to IEC 60034-5, mounting designations to IEC 60034-7, and Class H insulation to IEC 60085.
Every motor is individually tested before dispatch, not batch-sampled: winding resistance, insulation resistance, high-voltage withstand, back-EMF constant, no-load and loaded run, and temperature rise. Test reports are available on request.
Performance Curves
Where this motor is used
- Hydraulic pump drives on small electric work platforms and attachments
- Conveyor and elevator drives in packaging and processing lines
- Traction on light utility and yard vehicles
- Retrofits replacing a 2–3 kW induction motor where the controller current is fixed
Applications
Related ratings
255-EZI48-080 — 3 kW, 15.6 Nm at 1900 RPM
255-EZI48-100 — 3.4 kW, 16.2 Nm at 2000 RPM
All models: 48 volt motor range.
Custom windings, shaft and flange variants, and integrated controllers are available.