People Electric · Motor Protection Circuit Breaker
Product overview
People Electric RDM108 breakers combine inverse-time thermal overload and instantaneous electromagnetic protection for compatible motor circuits. The20A,32A and63A frames have different adjustment ranges and voltage-dependent short-circuit ratings. The available selections follow the manufacturer documented frame/range schedule.
Technical selection summary
| Manufacturer / series | Original People Electric RDM108 |
|---|---|
| Poles / frequency | 3P; AC50/60Hz |
| 20A frame voltage / settings | AC380V;0.4–0.63,0.6–1,1–1.6,1.6–2.5,2–3.2,2.5–4,3.2–5,4–6.3,5–8,6.3–10,8–12.5,10–16,14–20A |
| 32A frame voltage / settings | AC380V or AC660V;12.5–20,16–25,22–32A |
| 63A frame voltage / settings | AC380V or AC660V;22–32,28–40,36–50,45–63A |
| Icu at AC380V | 20A frame:1.5kA;32A frame:10kA;63A frame:22kA |
| Icu at AC660V | 32A frame:3kA;63A frame:4.2kA;20A frame is not offered at660V |
| Short-circuit making capacity at AC380V | 20A frame:2.2kA;32A frame:17kA;63A frame:46kA |
| Short-circuit making capacity at AC660V | 32A frame:4.2kA;63A frame:12.8kA |
| Insulation voltage | Ui660V |
| Release | Thermal inverse-time overload with temperature compensation and instantaneous electromagnetic trip |
| Operating mechanism | 20A frame:pushbuttons;32A frame:rotary knob;63A frame:handle |
| Mounting | Front connection/panel mounting;20A and32A frames also have35mm rail mounting provisions |
| Operating conditions | −5 to +40°C; daily average≤35°C; altitude≤2,000m; pollution degree3 |
Frame and operating voltage are paired; the current-setting range follows that frame. Set the overload release for the actual motor and duty, and coordinate the upstream protection with the stated fault level. Confirm any auxiliary contacts, shunt/undervoltage accessories and their supply voltages. Other catalogue versions or ranges require a separately confirmed specification.
Typical applications
- Overload and short-circuit protection and infrequent direct starting of suitable squirrel-cage motors, within the selected motor-duty rating.
Specify your enquiry
For a focused quotation, include:
- Frame/voltage and current-setting range, motor nameplate current and duty.
- Prospective short-circuit current and upstream protective device.
- Accessory/control supplies, mounting arrangement, quantity and destination.
Download People Electric RDM108 catalogue (PDF)
People Electric industrial-control selection handbook (Chinese PDF)
Product reference images and drawings
