Product Quicklinks Call us at 800.873.8731

NorthStar™ HT55 Magnetic Encoder

The HT55 has been designed especially for maintenance, motor repair, and field personnel. It offers an unparalleled means of applying a leading edge digital encoder to motors and other devices that require an innovative method of installation such as mounting to motors or other equipment without c-face mounting provisions.

  • Redesigned Circuitry for On-Board Diagnostics with LED indicator 
  • Hollowshaft Design with Heavy-Duty Bearings Ideal for TEFC AC Motor Mounting
  • Expanded Resolution up to 4096 PPR
  • Accommodates Shaft Sizes from 1/2” to 2-7/8”
  • Stainless Steel and Anodized Aluminum Construction
  • Single or Dual Isolated Outputs Available with Field-Serviceable Connector


HT55 Magnetic Encoder Specifications 

Standard Operating Characteristics

Resolution: 256-4,096 PPR
Sensing Technology: Magnetic
Output Modules: Single or Dual, Field Replaceable Modules

 Mechanical and Environmental

Mounting Style: Hollow-shaft mount with anti-rotation tether
Bore Sizes: 1/2" to 2-7/8"
Shaft Length Required: 2.00" Minimum
Operating Temperature: -40°C to +85°C
Connector: 10 pin industrial duty latching, sealed NEMA 4 & 12, IP65; MS connector or pig tail


Input Voltage: 5-26 VDC
Output Signal: IC-WE differential line driver: 150 mA, sink or source
Index: Optional differential index


About-Dynapar-ce rohs

Industries & Applications

The HT55 Encoder is ideal for a variety of motor feedback applications in heavy duty environments:

  • Pulp & Paper
  • Steel Mills
  • Vector Motor


  • Extruders
  • Pickling Equipment
  • Processing Equipment
  • Paper Machines
  • Cranes