ABB YXU173E YT204001-JK Relay Output Module

Name: ABB YXU173E YT204001-JK Relay Output Module
Brand: ABB

Model: YXU173E YT204001-JK

Brand ABB

Series YXU173E YT204001-JK Output

Model YXU173E YT204001-JK

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Product Details And Specifications

ABB YXU173E Series Technical Notes

The Evolution of YXU173E Architecture

The YXU173E module family was developed as part of ABB's Advant Controller 400 Series (AC 400) and Master DCS platform, introduced in the mid-1980s as a modular, rack-based process control architecture. Early variants operated on the Masterbus 300 fieldbus protocol, providing deterministic I/O scanning for high-availability process environments. Through successive hardware revisions, ABB refined the relay output board assemblies (YT-series sub-boards) to improve contact life ratings, EMC compliance (EN 61000 series), and compatibility with the evolving Advant OCS (Open Control System) software environment.

By the late 1990s, the platform reached functional maturity. ABB's transition toward the Industrial IT architecture (System 800xA) in the 2000s positioned the Advant/Master hardware as a legacy tier, though the installed base remained too large to retire quickly. Many facilities continue to operate YXU173E-equipped cabinets under extended lifecycle support agreements. Compatibility between early and late hardware revisions requires careful attention to backplane bus versions and firmware levels — cross-revision substitution must be validated against the site-specific system configuration.

YXU173E Full Catalog & Functionalities (SKU List)

Relay Output Modules

YXU173E YT204001-JK: Relay output module board assembly, standard contact configuration, Advant Master DCS
YXU173A: Relay output module, 16-channel, 24 VDC coil, SPDT contacts, Masterbus 300
YXU173B: Relay output module, 8-channel, high-current relay contacts, process hardened
YXU173C: Relay output module, 16-channel, isolated relay outputs, AC/DC load compatible
YXU173D: Relay output module, 8-channel, fail-safe relay configuration, SIL-rated applications
YXU173F: Relay output module, extended temperature range variant, offshore/hazardous area

Digital Input Modules (DI) — YXU Series

YXU110A: Digital input module, 32-channel, 24 VDC, Advant Master DCS backplane
YXU110B: Digital input module, 16-channel, 48 VDC, isolated inputs
YXU110C: Digital input module, 32-channel, NAMUR sensor compatible, intrinsically safe
YXU120A: Digital input module, 16-channel, 110/220 VAC, high-voltage field interface

Digital Output Modules (DO) — YXU Series

YXU150A: Digital output module, 16-channel, 24 VDC transistor outputs, Advant Master
YXU150B: Digital output module, 32-channel, sourcing type, high-density I/O rack
YXU160A: Digital output module, 8-channel, 110 VAC triac outputs, motor starter interface

Sub-Board Assemblies (YT-Series)

YT204001-JK: Relay output board assembly, mounts within YXU173E carrier, standard variant
YT204001-AK: Relay output board assembly, alternate contact rating variant
YT204001-BK: Relay output board assembly, high-density relay configuration
YT204001-CK: Relay output board assembly, extended isolation voltage specification

CPU / Controller Modules

DSPC110: Advant Controller AC 110 CPU module, Masterbus 300 master station
DSPC172: Advant Controller AC 400 CPU module, high-performance process controller

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