Equipment built for 240 volt supply needs a motor wound for it, and swapping in a 120V part is not an option. The Ametek Lamb 116213 is the 240 volt member of the 5.7 in two-stage bypass family: 97.4 in of sealed water lift, 99.1 CFM and 304 air watts, drawing 4.7 amps because the higher supply voltage halves the current for the same work. It is a common motor across central vacuum brands and shows up in industrial cleaning machines, blowers and lift equipment built for 240V service or for markets outside North America.
The bypass layout keeps cooling air separate from the working air, so the motor is appropriate for machines that recover moisture as well as dry debris. Double ball bearings, rather than a ball-and-sleeve arrangement, are what carry it through long continuous run cycles.
Built for
- Central vacuum power units wired for 240 volt service
- Export and international-market commercial cleaning machines
- Industrial vacuums and blowers on a 240V circuit
- Service techs replacing a failed 240V Lamb motor in an installed system
Specifications
- Type: Ametek Lamb vacuum motor / blower, bypass
- Blower stages: 2
- Discharge: tangential
- Body diameter: 5.7 in (145 mm)
- Voltage: 240 V, 50/60 Hz
- Amps: 4.7 running; 5.0 maximum
- Input power: 1100 W
- Airflow: 99.1 CFM
- Sealed vacuum (water lift): 97.4 in
- Air watts: 304
- Maximum speed: 24,160 RPM
- Maximum efficiency: 28 percent
- Bearings: double ball
Frequently asked questions
Will this motor run on 120 volts?
No. The 116213 is wound for 240 volt supply. On 120V it will run far below rated performance and will not power the machine correctly. Use the 120V part number for 120V equipment.
Why is the amp draw so much lower than the 120V motors?
Doubling the supply voltage halves the current for the same power. At 1100 watts input on 240V the motor draws about 4.7 amps, where a comparable 120V motor of similar output draws around 9 amps.
What is it commonly used in?
It is a widely used motor across central vacuum brands and is also found in blowers, boat lifts and industrial cleaning equipment built for 240V supply.
How long do the brushes last?
Ametek publishes a carbon brush service interval of roughly 500 to 600 operating hours. Brushes worn shorter than 3/16 in should be replaced. A motor will typically accept two brush changes before the armature or bearings become the limiting part, which puts total service life in the 800 to 1200 hour range under preventive maintenance.
What is the difference between bypass and thru-flow?
On a bypass motor the cooling air travels a separate path from the working air, so debris and moisture picked up by the machine never pass over the armature. That makes bypass motors the usual choice for wet pickup, extractors and scrubbers. A thru-flow motor cools itself with the working air, which makes it more compact and efficient but unsuitable for wet recovery unless the machine is specifically designed for it.
Discount Cleaning Products is a United States based dealer for Ametek Lamb vacuum motors and commercial cleaning equipment parts, with live technical support for matching a replacement motor to an existing machine.
