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ZEBRA RH 0003 - 0021 B

Zebra – reliable medium vacuum for demanding applications in industry and research.

Zebra – reliable medium vacuum for demanding applications in industry and research.

The Zebra RH 0003 - 0021 B belongs to the Busch product family of proven Zebra rotary vane vacuum pumps. You will find more information on advantages, technology, accessories and spare parts, applications as well as a complete product overview on our Zebra RH series type page.

Series Type Page ZEBRA RH
Want to know more?
Contact us directly (Busch Germany):
Get in contact or +49 (0)7622 681-0

Zebra – reliable medium vacuum for demanding applications in industry and research.

Zebra – reliable medium vacuum for demanding applications in industry and research.


Technical Specifications

Dimensional Drawing ZEBRA RH 0003 – 0021 B
ZEBRA RH 0003 – 0021 B
Pumping speed

Air at 20 °C. Tolerance: ± 10%

50 Hz 60 Hz
Pumping speed
Technical data RH 0003 B RH 0010 B RH 0015 B RH 0021 B
Nominal pumping speed 2.9 m3/h 9.7 m3/h 14.4 m3/h 20.2 m3/h
Pumping speed 2.4 m3/h 8.1 m3/h 12.0 m3/h 16.9 m3/h
Ultimate pressure 6.7 · 10-4 hPa (mbar) 6.7 · 10-4 hPa (mbar) 6.7 · 10-4 hPa (mbar) 6.7 · 10-3 hPa (mbar)
Ultimate pressure 6.7 · 10-4 hPa (mbar)
Ultimate pressure 6.7 · 10-2 hPa (mbar)
Ultimate pressure (gas-ballast valve closed) 6.7 · 10-3 hPa (mbar) 6.7 · 10-3 hPa (mbar) 6.7 · 10-3 hPa (mbar)
Ultimate pressure (gas-ballast valve open) 6.7 · 10-2 hPa (mbar) 6.7 · 10-2 hPa (mbar) 6.7 · 10-2 hPa (mbar)
Nominal motor rating Single-phase (Single-phase) 0.4 kW Three-phase (Three-phase) kW
Nominal motor rating 0.2 kW (Three-phase) 0.4 kW (Three-phase) 0.55 kW (Three-phase) 0.7 kW
Nominal motor rating Three-phase (Single-phase) 0.55 kW (Single-phase) 0.75-0.9 kW
Noise level (ISO 2151) ≤ 52 dB(A) ≤ 49 / ≤ 52 dB(A) ≤ 52 / ≤ 54 dB(A) ≤ 59 / ≤ 59 dB(A)
Oil capacity VSD 026 VMA 055 VMA 055 VMA 055
Weight approx. 16 kg (Single-phase) 29 kg (Three-phase) 29 kg (Single-phase) 42 kg
Weight approx. (Three-phase) 026 kg (Single-phase) 31 kg (Three-phase) 34.5 kg
Dimensions (L x W x H) 427 x 150 x 227.5 mm (Single-phase) 487.5 x 170 x 249.5 mm (Three-phase) 513.5 x 170 x 240 mm (Three-phase) 536 x 181 x 269 mm
Dimensions (L x W x H) (Three-phase) 485.5 x 170 x 240 mm (Single-phase) 515.5 x 170 x 249.5 mm (Single-phase) 585 x 182 x 271 mm
Gas inlet / outlet ISO-KF 25
Gas inlet ISO-KF 25 ISO-KF 25 ISO-KF 25
Gas outlet G ¾" (ISO-KF 25) G 1" (ISO-KF 25) G 1" (ISO-KF 25) G 1" (ISO-KF 25)

Technical Specifications

Dimensional Drawing
ZEBRA RH 0003 – 0021 B
ZEBRA RH 0003 – 0021 B
Pumping speed

Air at 20 °C. Tolerance: ± 10%

50 Hz
60 Hz
Pumping speed
Technical data RH 0003 B RH 0010 B RH 0015 B RH 0021 B
Nominal pumping speed 2.9 m3/h 9.7 m3/h 14.4 m3/h 20.2 m3/h
Pumping speed 2.4 m3/h 8.1 m3/h 12.0 m3/h 16.9 m3/h
Ultimate pressure 6.7 · 10-4 hPa (mbar) 6.7 · 10-4 hPa (mbar) 6.7 · 10-4 hPa (mbar) 6.7 · 10-3 hPa (mbar)
Ultimate pressure 6.7 · 10-4 hPa (mbar)
Ultimate pressure 6.7 · 10-2 hPa (mbar)
Ultimate pressure (gas-ballast valve closed) 6.7 · 10-3 hPa (mbar) 6.7 · 10-3 hPa (mbar) 6.7 · 10-3 hPa (mbar)
Ultimate pressure (gas-ballast valve open) 6.7 · 10-2 hPa (mbar) 6.7 · 10-2 hPa (mbar) 6.7 · 10-2 hPa (mbar)
Nominal motor rating Single-phase (Single-phase) 0.4 kW Three-phase (Three-phase) kW
Nominal motor rating 0.2 kW (Three-phase) 0.4 kW (Three-phase) 0.55 kW (Three-phase) 0.7 kW
Nominal motor rating Three-phase (Single-phase) 0.55 kW (Single-phase) 0.75-0.9 kW
Noise level (ISO 2151) ≤ 52 dB(A) ≤ 49 / ≤ 52 dB(A) ≤ 52 / ≤ 54 dB(A) ≤ 59 / ≤ 59 dB(A)
Oil capacity VSD 026 VMA 055 VMA 055 VMA 055
Weight approx. 16 kg (Single-phase) 29 kg (Three-phase) 29 kg (Single-phase) 42 kg
Weight approx. (Three-phase) 026 kg (Single-phase) 31 kg (Three-phase) 34.5 kg
Dimensions (L x W x H) 427 x 150 x 227.5 mm (Single-phase) 487.5 x 170 x 249.5 mm (Three-phase) 513.5 x 170 x 240 mm (Three-phase) 536 x 181 x 269 mm
Dimensions (L x W x H) (Three-phase) 485.5 x 170 x 240 mm (Single-phase) 515.5 x 170 x 249.5 mm (Single-phase) 585 x 182 x 271 mm
Gas inlet / outlet ISO-KF 25
Gas inlet ISO-KF 25 ISO-KF 25 ISO-KF 25
Gas outlet G ¾" (ISO-KF 25) G 1" (ISO-KF 25) G 1" (ISO-KF 25) G 1" (ISO-KF 25)

Accessories and spare parts

Busch Genuine Service Kits
Busch Genuine Oils and Lubricants
Busch Genuine Exhaust Filters


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ZEBRA RH 0003 - 0021 B

Want to know more?
Contact us directly (Busch Germany):
+49 (0)7622 681-0 Get in contact

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