HTT-400-X Multi-turn Dual Resolver Transducer

HTT-400-X Multi-turn Dual Resolver Transducer
  • Direct replacement for AVG Autotech SAC-RL210
  • Can be ordered with AMCI, AVG or other compatible resolvers
  • Redesigned for 100% mechanical compatibility
  • Superior durability in harsh environments
  • Ideal for high-shock applications
  • 4" diameter anodized aluminum housing
  • Interchangeable and field replaceable conduit and connector terminations
  • 100% compatible with AMCI's complete line of resolver interface products when ordered with AMCI resolvers
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    HTT400-128 drawings PDF version

    HTT400-180 drawings PDF version










    HTT-400-X Brushless Multi-Turn Dual Resolver Transducer

    Redesigned for complete mechanical and electrical compatibility with AVG/Autotech SAC-RL210 transducers, the HTT-400-X transducers are IP67 rated heavy-duty 4 inch diameter resolver based transducers.

    Available with a 1 inch conduit fitting or military connector, all of our size 400 transducers feature a unique termination block that allows you to switch between conduit and connector terminations in the field. Not only does this allow you to reduce the number of spares you need to stock, this system also allows you to make connector and conduit repairs in the field, sometimes without removing the transducer from the machine.

    In addition to termination flexibility, the HTT-400-X transducers can be ordered with
    a wide variety of resolvers to match your control system needs.

    Combined with our industry best lead times, the HTT-400-X transducers allow you to design new systems around an industry standard package, or quickly upgrade or
    repair existing machines.

    Available gear ratios include:

    128:1 Autotech compatible gear-down
    180:1 AMCI compatible vernier arrangement
    Consult the factory for the availability of other gear ratios.

    AMCI offers a complete line of resolver interface solutions, enabling you to easily configure a resolver-based position feedback system in your favorite PLC, PAC, or network.

    Available Versions

    HTT-400-128: 128 turn resolver transducer, conduit entry or side connector
    Price | $2,825/ea

    HTT-400-180: 180 turn resolver transducer, conduit entry or side connector
    Price | $3,245/ea

    Note: Pricing is US Domestic only




    Consult the factory for availability

    Contact Sales

    Heavy-Duty Reliability

    The resolver transducer was originally developed to withstand the punishment of military applications, and has since benefited from more than 50 years of continuous use and development. Product packaging plants and stamping press lines are perfect examples of where you might find resolver based systems at work today.

    Builders and system integrators alike agree that the resolver transducer is unsurpassed in its ability to reliably supply rotary position data in the harshest industrial environments.

    The AMCI resolver product line is offered in aluminum or stainless steel construction, and boasts up to an IP67 rating. Solid shaft and hub shaft versions are available, and both types incorporate an oversized double row bearing that supports shaft loads up to 100 lbs. radial / 50 lbs. axial.

    Inside the Resolver Transducer



    Mechanical Specifications

    HTT-400-X Resolver Transducer
    Shaft loading: 100 lbs. radial/50 lbs. axial maximum shaft loading. Bearing life rated at 2X10^9 revolutions minimum at maximum shaft load.
    Starting torque:8 oz. in max @25° C
    Moment of inertia:8.75 X 10ˆ-4 oz-in-secˆ2
    Weight: 4.80 lbs.
    Housing:anodized aluminum
    Shaft:1070 carbon steel

    Connector Pinout: ("S" Termination or MS-TA19 Adapter) (Military Equivalent Part #: MS3112E14-19P)

    AR1 of Fine and Coarse Resolvers
    BR2 of Fine and Coarse Resolvers
    CS1 of Coarse Resolver (CS1)
    DS2 of Coarse Resolver (CS2)
    ES3 of Coarse Resolver (CS3)
    FS4 of Coarse Resolver (CS4)
    HS1 of Fine Resolver (FS1)
    LS2 of Fine Resolver (FS2)
    KS3 of Fine Resolver (FS3)
    MS4 of Fine Resolver (FS4)
    G, J, N, P, R, S, T, U, VNo connection


    Resolver Type
    -J (AMCI Standard)-L (AVG/Autotech Standard)
    Operating Frequency5000Hz2250Hz
    Rotor Input Voltage7.0Vrms1.88Vrms
    Stator Output Voltage6.65Vrms2.6Vrms
    Transformation Ratio0.95+5%1.40+5%
    Input Current20mArms max.20mArms max.
    Phase Shift10° max.10° max.
    Accuracy±7 minutes max±7 minutes max

    *Other resolver types and high accuracy units are available. Please consult factory.



    HTT-400-X Resolver Transducer
    Operating temperature:-40° C to 125° C (-40° F to 257° F)
    Shock:50 G's for 11 mSec
    Vibration:15 g's to 2,000 Hz


    compatible cables

    For all cables, (x) = length of cable in feet.


    AMCI Part NumberUses Connector


    Compatible Connectors

    Connectors are sold separately or as part of a pre-assembled cable.


    AMCI Part NumberMilitary Equivalent



    Resolver transducers product family overview

    AMCI’s wide selection of resolver transducers, resolver interfaces for PLC based systems, and related accessories provide a complete, quality solution supported by over 25 years of product design, manufacturing, and application experience. Watch the video to learn more about these maximum duty rotary sensors!

    Duration 01:20


    Resolver Interfaces

    Resolver Interfaces Learn More


    Cables Learn More


    Connectors Learn More

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    Ordering Information

    AMCI's sales team takes the hassle out of placing your order. We'll advise on product selection, alternatives, lead times, and present you with point of purchase options. Call (860) 585-1254 or email AMCI sales today! 

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    create your part number

    Generate your HTT-400-X resolver transducer part number by using this helpful ordering guide. Starting from left to right, use the following diagram and table to choose the desired options.



    AUTOTECH direct replacement applications: AMCI offers the 128:1 turn resolver transducer package:

    Part Number Guide

    Part Number CharacterHTT-400-128 Brushless Multi-turn Dual Resolver Transducer Selections
    TerminationC= 1 inch conduit
    S = MS19 side connector


    NEW applications: AMCI offers the 180:1 turns resolver transducer package:

    Part Number Guide

    Part Number CharacterHTT-400-180 Brushless Multi-turn Dual Resolver Transducer Selections
    TerminationC= 1 inch conduit
    S = MS19 side connector


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