TENV

AcronymDefinition
TENVTotally Enclosed Non-Ventilated (motors)
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In TENV a-c motors, cooling is by radiation of heat through the frame.
The TENV (totally enclosed non-ventilated) motor prevents contaminants from being spread by airflow.
Features include: Protech bearing isolator used for the output shaft seal; minimal exterior fasteners due to no through-bolt design and screw-on conduit box covers that reduce surface areas that may trap contaminants: and patent pending designs on the screw-on conduit box cover on the TENV motors and the bearing carrier used on the output shaft of the motors.
To date, motors ranging in size from 0.37kW to 7.5kW have been installed, either as TENV or TEFC machines.
TENV -- A totally enclosed non-ventilated motor is also used in materials handling applications where another source of ventilation to cool the motor is available.
New products include totally enclosed non-ventilated (TENV) ratings through 20 hp, totally enclosed blower-cooled (TEBC) ratings through 800 hp, inverter drive motors approved for explosion-proof environments (UL- and GSA-approved for Class I Group D and Class II Group F and G) from 1/2 to 75 hp, washdown duty inverter drive and vector drive motors through 10 hp, "paint-free" washdown inverter drive motors from 1/2 to 10 hp, and optional encoder feedback from BEI (standard), Autron, Dynapar, and North Star/Lake Shore.
* TEFC, TENV, and ODP * An operating range of 178 Key Features
The TENV Vector Duty Motor line is designed for use in applications where energy efficiency and 1000:1 constant torque ratio is required.
Although specifications vary, a totally enclosed non-ventilated (TENV) motor with a NEMA 12 enclosure is offered by most manufacturers.
Features include a Protech bearing isolator used for the output shaft seal; minimal exterior fasteners due to no through-bolt design and screw-on conduit box covers; patent pending designs on the screw-on conduit box cover on the TENV motors and the bearing carrier used on the output shaft of the motors; O-ring sealed openings on the conduit box covers and rotor/cartridge covers; rigid cast base for rugged applications; and a full fact nameplate laser etched to the motor frame making frame surface smooth, which eliminates areas that trap contaminants.
Common enclosures include totally enclosed fan-cooled (TEFC), explosion-proof, totally enclosed non-ventilated (TENV), and open drip-proof (ODP).