NEMA Premium Efficiency NAE - Vertical Hollow Shaft - 20 HP

Designed primarily for deep well turbine pump applications. The coupling is equipped with a non-reverse ratchet, which prevents motor rotation from backspin at shutdown. These motors are built to NEMA standards and have special bearing arrangements to carry heavy thrust loads.

**These motors meet or exceed the minimum standard as defined in many State and Local Efficiency Rebate Programs for Premium Efficiency Special Purpose Vertical Hollow Shaft Motors. Consult your local power company for eligibility**

FEATURES:

* Meets or exceeds NEMA Premium Efficiency® Requirements defined by NEMA MG-1, Table 12-12
* Three Phase, 60 Hz
* Class B Temperature Rise @ 1.15 Service Factor
* Enclosure: WP1 - Open weather-protected machine Type 1
* Oversized angular contact bearing and ball bearing to NEMA MG 1-1993 (WP-1).
* Oil Bath w/ Large reservoir
* Designed for use with Across The Line and Reduced Voltage Starters
* High Torque
* Vacuum Pressure Impregnation (VPI Treatment) for all windings
* Precision Balancing
* Dual Voltage Suitable for Part Wind Start at 230V
* Single Voltage Suitable for Part Wind Start at 460V
* Thermal Protected as standard
* Space Heaters as standard
* Inverter Rated (10:1 variable torque)
* Cast Iron Construction
* Hi-Thrust Design
* Non-reverse ratchet (ball bearing type)
* 40° C ambient temperature
* Class F insulation system, class B rise at full load
* Class H impregnation resin
* Lifting provisions on 213T frame and above