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Honeywell 51304717-100 HLAI/STI Galvanic Isolator ModuleHoneywell 51304717-100 HLAI/STI Galvanic Isolator ModuleHoneywell 51304717-100 HLAI/STI Galvanic Isolator Module
Honeywell 51304717-100 HLAI/STI Galvanic Isolator Module
Honeywell 51304717-100 HLAI/STI Galvanic Isolator Module
Honeywell 51304717-100 HLAI/STI Galvanic Isolator Module

Honeywell 51304717-100 HLAI/STI Galvanic Isolator Module


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PRODUCT SKU : 51304717-100

PRODUCT TYPE : Signal Isolators

PRODUCT VENDOR : Honeywell


  • 100% Genuine Parts – Risk-Free 30-Day Returns
  • 1-Year Warranty & Expert Support for Every Order

Product Details

The Honeywell 51304717-100, also cataloged as the 51304717 Galvanic Isolator Module, operates as a dedicated hardware component for signal isolation and electrical noise decoupling within Honeywell High Level Analog Input (HLAI) and Smart Transmitter Interface (STI) sub-assemblies.

Hardware Specifications

Parameter Specification
Model 51304717-100
Brand Honeywell
Origin USA
Weight 0.42 lbs (0.19 kg)
Dimensions Standard rack-mount isolator slot form factor
Operating Temp -20 deg C to +70 deg C
Power Consumption Passive isolator bus draw
Isolation Voltage Up to 500 VAC channel-to-system isolation
Signal Response Time Less than 1 ms
System Compatibility Honeywell TDC 3000 / Experion PKS Chassis Assemblies

Process Control Isolation and Signal Integrity

The 51304717-100 module provides galvanic isolation up to 500 VAC to maintain signal integrity across analog field measurement loops. Designed to interface directly with High Level Analog Input (HLAI) networks and 4-20 mA HART loop protocol transmitters, the circuit architecture suppresses common-mode noise and prevents cross-channel ground loop circulation. The high-speed switching response of less than 1 ms preserves process variable dynamics without phase lag, protecting backplane logic from field-side voltage surges.

Frequently Asked Questions

Q: Does the 51304717-100 isolator support hot-swapping during active rack operations?

A: Yes, provided field loop power is isolated or channel loops are switched to manual control prior to module extraction to avoid transient trips on adjacent channels.

Q: How does the 500 VAC isolation rating affect process analog signal accuracy?

A: The galvanic barrier eliminates ground loop currents between field instrument earth grounds and DCS reference grounds, preventing measurement drift and ensuring precision signal conversion.

Field Installation Guidelines

  • Chassis Mounting: Align the isolator module along the guide rails of the HLAI/STI termination card file and press firmly until the backplane connectors fully seat.
  • Shield Grounding: Connect all analog instrument cable shields to the dedicated cabinet instrument ground bus, ensuring single-point grounding to avoid earth loops.
  • Wiring Separation: Route field I/O loop cables in dedicated low-voltage wire raceways, physically separated from high-current AC power distribution lines.
  • Inspection & Fastening: Verify that all locking clips or captive screws are fully tightened to secure the module against cabinet vibration.

Additional Information

  • 100% Genuine Parts: All products are original and authentic, ensuring reliable industrial performance.
  • 30-Day Refund Guarantee: Return any in-stock item within 30 days in original, unopened packaging for a full refund (excluding shipping and fees).
  • 12-Month Warranty: Covers defects in materials or workmanship; excludes misuse, normal wear, or unauthorized modifications.
  • Worldwide Shipping: We ship via USPS, UPS, FedEx, and DHL. Delivery times vary by country and may be subject to customs or import fees.
  • Support & Contact: Technical and warranty assistance is available anytime. Contact us here: Contact.
  • Purchase Guidance: Check product specifications and compatibility carefully before ordering to ensure proper application.




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