H25 Allen-Bradley 846 Resolver Replacement

H25 Allen-Bradley 846 Resolver Replacement
  • 304 stainless steel housing and shaft
  • High temp. rating = up to 150°C (302°F)
  • IP67 rated; superior durability in harsh environments
  • Ideal for high-shock applications
  • Variety of mounting styles
  • 100% compatible with AMCI's complete line of resolver interface products
  • Description

    H25 Allen-Bradley 846 Resolver Replacement

    AMCI's stainless steel H25 series resolver transducer is a size 25 package with a flange mount and end connector design, simplifying new installations or transducer replacements. This IP67 rated transducer is made from 304 stainless steel and withstands operating temperatures up to 150°C (302°F).

    The corrosion resistant construction of AMCI's stainless steel H25 resolver transducer, along with its extreme temperature rating allow it to be used in environments where most sensors will not survive. High performance applications like those found in paper factories, steel mills, and mining operations are the inspiration for this extreme-duty rotary sensor. Plus the unit's stainless steel construction make it perfect for food grade installations.

    The rotor of the stainless steel H25 brushless resolver is built on the input shaft, minimizing component count & maximizing reliability. In other words, the rotor & stator assembly are integrated into the unit's design eliminating the use of separate internal resolvers and couplings to the external shaft. The net result is a "bullet-proof" resolver transducer with unmatched durability.

    AMCI's stainless steel H25 is available with 3/8", 10mm(-10 option), or 1/4"(-03 option) shaft, mil-spec connector, and flange mount.

    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

    H25 (AB Substitute): Single-turn resolver transducer replacement compatible with Allen-Bradley products
    Price | $730 - $835/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

    H25 Resolver Transducer
    Shaft loading: 1/4", 3/8", and 10mm shafts:
    40 lbs. radial/20 lbs. axial maximum shaft loading. Bearing life rated at 2X10^9 revolutions minimum at maximum shaft load.

    5/8" shaft:
    100 lbs. radial/50 lbs. axial maximum shaft loading. Bearing life rated at 2X10^9 revolutions minimum at maximum shaft load.
    Starting torque: 1/4", 3/8", and 10mm shafts:
    40 lbs. radial/20 lbs. axial maximum shaft loading. Bearing life rated at 2X10^9 revolutions minimum at maximum shaft load.

    5/8" shaft:
    100 lbs. radial/50 lbs. axial maximum shaft loading. Bearing life rated at 2X10^9 revolutions minimum at maximum shaft load.
    Moment of inertia:1/4”, 3/8”, & 10mm shafts:
    6.00 X 10-4 oz-in-sec2

    5/8” shaft:
    8.50 X 10-4 oz-in-sec2
    Weight: 5/8" Shaft: 1.8 lbs. max.
    H25-F1E: 1.6 lbs. max.
    H25-M1E: 2.3 lbs. max.
    All Others: 1.3 lbs. max.
    Cast aluminum
    Shaft:303 stainless steel

    Mating Connector: (sold seperately)

    AMCI Part NumberMilitary Equivalent
    "A" typeMS-19MS3112F14-19S
    "N" typeMSD-10MS3106A18-1S

    Connector Pinout

    H25-XX-RXA: (Military Equivalent Part # MS3112E14-19P)
    CNo connection
    H to VNo connection
    H25-XX-RXN: (Military Equivalent Part # MS3102E18-1P)
    CNo connection
    H to JNo connection
    Note: Connectors are sold separately or as part of a pre-assembled cable.


    H25 Resolver Transducer
    "R1" Version (H25-XX-R1X)"R2" Version (H25-XX-R2X)"R3" Version (H25-XX-R3X)
    Resolver Type:Control TransformerTransmitterTransmitter
    Input Voltage:12.0 V6.0 V7.0 V
    Input Freq:2500 Hz1000 Hz5000 Hz
    Input Current:20.0 mA Max.20.0 mA Max.20.0 mA Max.
    Output Voltage:6.00 V Nom.2.7 V Nom.6.65 V Nom.
    Trans. Ratio (TR):0.50 ± 5%0.45 ± 5%0.95 ± 5%
    Accuracy:± 12 min. (max error)± 12 min (max error)± 12 min (max error)


    H25 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
    Enclosure:IP67 (valid only with working shaft seal)

    H25 Resolver Replacements For Allen-Bradley Bulletin 846 Resolvers

    Allen-Bradley Bulletin 846 Resolver Part #AMCI H25 Resolver Part # (mating connector sold separately)
    846-SJDA1CG-R3H25-FE-R3A (requires MS-19 connector)
    846-SJDN1CG-R1H25-FE-R1N (requires MSD-10 connector)
    846-SJDN1CG-R2H25-FE-R2N (requires MSD-10 connector)
    846-SJDN1CG-R3H25-FE-R3N (requires MSD-10 connector)
    846-SJDA2CG-R2H25-FS-R2A (requires MS-19 connector)
    846-SJDA2CG-R3H25-FS-R3A (requires MS-19 connector)
    846-SJDN2CG-R1H25-FS-R1N (requires MSD-10 connector)
    846-SJDN2CG-R2H25-FS-R2N (requires MSD-10 connector)
    846-SJDN2CG-R3H25-FS-R3N (requires MSD-10 connector)
    846-SJHN1CG-R3H25-SE-R3N (requires MSD-10 connector)
    846-SJHA2CG-R1H25-SS-R1A (requires MS-19 connector)
    846-SJHN2CG-R3H25-SS-R3N (requires MSD-10 connector)



    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


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