Vertical Hollow Shaft Motors
About Vertical Hollow Shaft Motors
ABB Vertical Hollow Shaft Motors
ABB VHS Series
ABB Vertical Hollow Shaft (VHS) motors are NEMA Premium® efficient motors designed specifically for deep well vertical turbine pump applications. The series features a heavy duty cast iron construction, hollow shaft design for direct pump coupling, and inverter-duty capability for demanding pumping systems. Available in Weather Protected Type 1 (WP1) construction, the VHS product line covers 15 to 500 HP with thrust capacities up to 16,480 lbs.
Features
Designed for deep well vertical turbine pumps with top-mounted coupling for convenient access during shaft and impeller maintenance. Drop-in design fits standard NEMA frame vertical hollow shaft motors.
Heavy duty cast iron construction with Class F insulation, Class B temperature rise, 120V space heaters, PTC thermistors, and oversized conduit box for long service life in demanding environments.
Non-reverse ratchet (NRR) design helps prevent reverse rotation, while larger frame motors utilize enhanced thrust bearing arrangements for high thrust applications.
Suitable for part winding start, Wye-Delta start, and inverter-duty operation per NEMA MG1. UL listed construction.
Applications
Deep well pumping
Vertical turbine pumps
Agricultural irrigation systems
Municipal water supply systems
Wastewater treatment facilities
Cooling tower circulation systems
Fire protection pumping systems
Industries Served
Water & Wastewater
Agriculture
Mining
Municipal Utilities
Performance Range (WP1)
Horsepower: 15 - 500 HP
Speed: 1800 RPM
NEMA Frames: 250 - 5000
Voltage: 208-230/460V and 460V
Frequency: 60 Hz standard, 50 Hz optional
Efficiency: NEMA Premium®
Down Thrust Capacity: 3,300 - 16,480 lbs
Standard Construction
Weather Protected Type 1 (WP1) enclosure
Cast iron frame
1.15 service factor
Class F insulation
Class B temperature rise
Non-reverse ratchet
Polyurea grease drive-end bearing
Space heaters and PTC thermistors
40°C ambient rating
3300 ft altitude rating
Available Options
Modified P-Base
Modified Couplings
Steady Bushings
50 Hz Configurations
Replacement Parts & Accessories
P-base assemblies, couplings, steady bushings, guide bearings, thrust bearings, and double thrust bearing assemblies are available for supported frame sizes throughout the VHS product range.
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