ATB

ATB RKF0.37/4-7PRQ 0.40HP 120V Motor Brandtech Rotary Vane Vacuum Pump 1690RPM

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SKU:
49218
MPN:
0.4HP 120V
Condition:
Used
Availability:
Currently out of stock — contact us for availability.
Weight:
27.00 LBS
Shipping:
Calculated at Checkout
  • ATB RKF0.37/4-7PRQ vacuum pump motor — three-quarter front-left view showing blue motor body, gray junction box with carry handle, red fan cover, and US power cord
  • ATB vacuum pump motor — three-quarter front-right view showing machined vacuum head flange face with empty bolt holes (mounting screws absent) and central shaft bore
  • ATB motor rating plate close-up — AC 1 Phase Motor, 266312-X 011, RKF0.37/4-7PRQ, 120V, 4.5A, 0.40HP, 1390 RPM at 50Hz, 1690 RPM at 60Hz, IP54, Insulation Class F
  • ATB rotary vane vacuum pump motor — right-side view showing ATB nameplate on motor body, junction box with handle on top, and power cord
  • ATB motor rear fan end — circular red fan cover viewed straight on, central shaft opening visible, surface wear and rust on fan cover
  • Brandtech vacuum pump head flange face — machined circular flange with empty mounting bolt holes, central intake bore visible, oil and grime present on flange surface
$65.00
Was: $135.00

This item is temporarily unavailable. Please view our recommended, in-stock alternatives directly below.

Description

ATB RKF0.37/4-7PRQ 0.40HP 120V Motor Brandtech Rotary Vane Vacuum Pump 1690RPM

This is an ATB single-phase AC electric motor, model RKF0.37/4-7PRQ, designed as the drive motor for the Brandtech rotary vane vacuum pump. The motor powers on and spins smoothly. The mounting screws that attach the motor to the vacuum pump head are missing, so the assembly cannot be safely fully operated until those screws are sourced. This motor is being sold in its current incomplete state and is suited for parts, repair, or integration into a compatible pump assembly where the hardware can be supplied.

Specifications & What's Included

  • Manufacturer: ATB (Austria Antriebstechnik)
  • Model: RKF0.37/4-7PRQ
  • Part Number: 266312-X 011
  • Reference Number: 369044
  • Motor Type: AC Single-Phase Motor
  • Voltage: 120V AC
  • Current: 4.5A
  • Power: 0.40 HP
  • Speed at 50Hz: 1390 RPM (cosφ 0.86)
  • Speed at 60Hz: 1690 RPM (cosφ 0.92)
  • Frequency: 50Hz / 60Hz dual-rated
  • Run Capacitor: CB30uF 240VDB
  • Start Capacitor: CA25uF 240VAB
  • Thermal Protection: Prot 160°C
  • Insulation Class: F
  • Enclosure Rating: IP54
  • Compatible with: Brandtech Rotary Vane Vacuum Pump
  • Includes: Motor unit with power cord
  • Not included: Mounting screws for vacuum head attachment (missing)

Applications

ATB single-phase induction motors of this frame and power class are used as the drive units in compact rotary vane vacuum pumps — the type commonly found in laboratory, medical, and light industrial settings for generating rough vacuum (typically down to 0.1–10 mbar). Brandtech Scientific (formerly known as Vacuubrand in some markets) produces a line of oil-free and oil-lubricated rotary vane vacuum pumps widely used in research labs, chemistry, filtration, and vacuum oven applications. The motor couples directly to the pump head and drives the vane rotation that produces suction. A replacement motor of this specification may be of interest to labs or technicians servicing a Brandtech pump where the original motor has failed but the pump head remains serviceable, or to builders sourcing a compact 0.40HP 120V fractional-HP motor for a custom application.

Condition: Used
This ATB RKF0.37/4-7PRQ 0.40HP 120V rotary vane vacuum pump motor has been inspected and powers on — the motor spins smoothly. However, the mounting screws that attach the motor to the vacuum pump head are missing. Without these screws the assembly cannot be safely operated, so the motor is being sold in its current state with that hardware absent. The motor body shows typical used wear; surface rust is visible on the rear fan cover and the pump head flange shows oil and grime residue consistent with previous service use. Please view our photo set for full detail and contact us if you have any questions.
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Warranty Information

We stand behind every item we sell with a 30-day money-back guarantee. If your item arrives not as described, you may return it within 30 days for a full refund. Please inspect your purchase upon arrival and contact us with any questions.
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Additional Information

Brand:
ATB
Model:
RKF0.37/4-7PRQ
MPN:
266312-X 011
Secondary Model:
369044
Type:
AC Single-Phase Electric Motor
SKU:
49218
Voltage:
120V AC
Current Rating:
4.5A
Power Rating:
0.40 HP
Speed at 50Hz:
1390 RPM
Speed at 60Hz:
1690 RPM
Phase:
Single Phase
Frequency:
50Hz / 60Hz
Power Factor (50Hz):
0.86
Power Factor (60Hz):
0.92
Insulation Class:
Class F
Thermal Protection:
Prot 160 C
Enclosure Rating:
IP54
Run Capacitor:
CB30uF 240VDB
Start Capacitor:
CA25uF 240VAB
Compatible With:
Brandtech Rotary Vane Vacuum Pump
Seller Notes:
Motor only — mounting screws (head attachment hardware) are missing and not included.
Country/Region of Manufacture:
Germany
Form Factor:
Compact Motor / Pump Drive Unit
Condition Notes:
This ATB RKF0.37/4-7PRQ 0.40HP 120V vacuum pump motor powers on and spins smoothly. Missing the mounting screws that attach it to the vacuum head — sold as-is in current state. Shows typical used wear. Please contact us with any questions.
California Prop 65 Warning:
WARNING: This product can expose you to chemicals including lead and lead compounds, and DEHP (a phthalate), which are known to the State of California to cause cancer and birth defects or other reproductive harm. Go to P65Warnings.ca.gov
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