single-phase motor, 230 V
RNM 71b4
- 0.37Power, kW
- 1400Speed, rpm
- 4Poles
- 71IEC frame
- 3.5Amps at 230 V

Specification
- Rated output
- 0.37 kW
- Speed
- 1400 rpm (4-pole)
- Supply
- 230 V 50 Hz, single-phase. Also made for 240, 220, 120 and 110 V at 50 or 60 Hz to order.
- Current at 230 V
- 3.5 A
- Run capacitor
- 16 µF
- Efficiency
- 60%
- Power factor
- 0.96
- Starting current
- 2.5 × rated
- Torque
- 2.5 Nm
- Frame
- IEC 71
- Shaft end
- 14 × 30 mm
- Large flange (B5)
- FF130
- Small flange (B14)
- FT85
- Weight (B3)
- 7 kg
Pumps it drives
No pump here has this motor as its first match.
Flanges and couplings
For an IEC 71 frame with a 14 mm shaft, bolting to the small flange (B14). Pick the one made for your pump series.
Starter
The Iskra parts here are for three-phase starters at 400 V. A single-phase motor needs a single-phase starter, with protection set to 3.5 A.
Other motors in this range
RNM 63c4RNM 71a4RNM 71c4RNM 80a4RNM 80b4RNM 80c4RNM 90La4RNM 90Lb4RNM 90Lc4RNM 90Sa4RNM 100a4RNM 100b4RNM 100c4RNM 112a4RNM 112b4RNM 112c4RNM 112d4