G-BH7 2BH7 210
G-BH7 2BH7 620-0N Three-phase, 50 Hz 190–210 V, 60 Hz 190–210 / 380–420 V (NEMA Premium 200 V), 3.5 / 4 kW, IE3
The Elmo Rietschle 2BH7 620-0N is a side channel blower of the G-BH7 series for vacuum and pressure operation: 3.45–6.3 kW (50 Hz), differential pressure up to −630 mbar (vacuum) or 940 mbar (pressure), depending on the motor. Ehrler & Beck advises on selection and service.
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- Rated motor power 3.5 kW 50 Hz 4 kW 60 Hz
Elmo Rietschle 2BH7 620-0N – side channel blower of the G-BH7 series
The 2BH7 620-0N is a side channel blower of the G-BH7 series from Elmo Rietschle. According to the data sheet, every G-BH type can be used as a vacuum pump and/or as a compressor in continuous operation over the whole range of the characteristic curve. Depending on the motor and mains frequency, a differential pressure of up to −630 mbar in vacuum operation and up to 940 mbar in pressure operation is permissible; the motor power is 3.45–6.3 kW at 50 Hz.Versions and motors
Listed are 15 order numbers from the Elmo Rietschle data sheets: IE3 three-phase motors (60 Hz also NEMA Premium). Voltage, current, power, permissible differential pressures, sound pressure level and weight are given with each version. Elmo Rietschle lists the versions with frequency converter in a separate data sheet; they are not listed individually here and are available on request.Volume flow
Elmo Rietschle gives the inlet volume flow of the G-BH types as a characteristic curve over the pressure difference (air 15 °C, 1013 mbar, tolerance ±10 %). According to Elmo Rietschle, the G-BH7 series covers 50 to 230 m³/h. Ehrler & Beck determines the volume flow for your operating point.Advice and service
Ehrler & Beck advises on selection and accessories such as vacuum and pressure limiting valves, supplies spare parts and carries out maintenance and repair.| Rated motor power 50Hz | 3.5 |
|---|---|
| Rated motor power 60Hz | 4 |
| Motor efficiency class | IE3 |
| Weight | 62 |
| Noise level | 68 dB(A) |
| Oil type | Oil-free |
Additional technical data
| Technical data | Value |
|---|---|
| Design | Side channel blower for vacuum and pressure operation (according to the data sheet usable in continuous operation over the whole range of the characteristic curve) |
| 50 Hz | 190–210 V, 13.3 A, 3.5 kW, max. differential pressure −520 mbar (vacuum) / 460 mbar (pressure), 68 dB(A), IE3 |
| 60 Hz | 190–210 / 380–420 V, 15.2 / 7.6 A, 4 kW, max. differential pressure −470 mbar (vacuum) / 390 mbar (pressure), 72 dB(A), IE3 |
| 60 Hz (NEMA Premium) | 200 V, 15.2 A, 4 kW, max. differential pressure −470 mbar (vacuum) / 390 mbar (pressure), 72 dB(A) |
| Weight | approx. 62 kg |
| Motor | Three-phase, IE3, IP55, insulation class F |
| Approvals | UL 1450, CAN/CSA 22.2 No 68-09 |
| Volume flow | Characteristic curve in the data sheet; series G-BH7 according to Elmo Rietschle 50 to 230 m³/h |
| Reference conditions | Air 15 °C, 1013 mbar, tolerance ±10 %; differential pressures apply up to 25 °C inlet and ambient temperature |
| Sound pressure level measuring method | Measurement-surface sound pressure level to EN ISO 3744, 1 m, medium throttling, tolerance ±3 dB(A) |
