HT-400-X Multi-turn Geared Resolver Transducer

HT-400-X Multi-turn Geared Resolver Transducer
  • Direct replacement for AVG Autotech SAC-RL100's and Gemco Series I's
  • 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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    HT400X drawings PDF version










    HT-400-X Brushless Multi-Turn Geared Resolver Transducer

    AMCI's HT-400-X is a direct replacement for AVG and Gemco resolver transducers. Redesigned for complete mechanical and electrical compatibility with AVG/Autotech SAC-RL100's and Gemco Series I transducers, the HT-400-X transducers are IP64 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 HT-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 HT-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:


    Other gear ratios are constantly being designed. If you need a custom gear ratio, consult the factory for availability.

    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

    HT-400-X: Multi-turn resolver transducer, conduit entry or side connector
    Price | $2,735/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

    HT-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:8.0 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: (Military Equivalent Part #: MS3112E12-10P)

    ("S" Termination or MS-TA25 Adapter)
    G, H, J, KNo connection


    HT-400-X Resolver Transducer
    -J (AMCI standard)
    HT-400-X Resolver Transducer
    -L (AVG/Autotech standard)
    Operating Frequency:
    5000 Hz
    Operating Frequency:
    2250 Hz
    Rotor Input Voltage:
    7.0 Vrms
    Rotor Input Voltage:
    1.88 Vrms
    Stator Output Voltage:
    6.65 Vrms
    Stator Output Voltage:
    2.6 Vrms
    Transformation Ratio:
    0.95 ± 5%
    Transformation Ratio:
    1.40 ± 5%
    Input Current:
    20 mArms max.
    Input Current:
    20 mArms max.
    Phase Shift
    10° max.
    Phase Shift
    10° max.
    max. error ±7 minutes max
    max. error ±7 minutes max


    HT-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

    AMCI makes buying PLC-based automation easy...our sales group will help you:

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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 HT-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. Please note the following…

    • Other resolver types and high accuracy units are also available. Consult factory for availability.

    Part Number Guide

    Part Number CharacterHT-400-X Brushless Multi-turn Geared Resolver Transducer Selections
    # of Turns24
    Note: Consult factory for other ratios.
    Termination:C= 1 inch conduit
    S = MS3112E12-10P connector
    Resolver Type: J = AMCI standard
    L = AVG/Autotech and Gemco standard
    Note: Other resolvers are available, consult AMCI Sales for assistance.


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