ABB EG2401S Digital Power Modules YPP109A YT204001-DL / YPN106A YT204001-BD EG2401S-AR

Name: ABB EG2401S Digital Power Modules YPP109A YT204001-DL / YPN106A YT204001-BD EG2401S-AR
Brand: ABB

Model: YPP109A YT204001-DL/YPN106A YT204001-BD EG2401S-AR

Brand ABB

Series EG2401S Power

Model YPP109A YT204001-DL/YPN106A YT204001-BD EG2401S-AR

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Technical Dossier

Product Details And Specifications

ABB EG2401S Series Technical Notes

The ABB EG2401S series represents a family of digital power supply and distribution modules deployed within ABB's Advant OCS / Master DCS architecture. These modules are installed across critical heavy-industry infrastructure globally, including petrochemical refineries, nuclear power auxiliary systems, offshore platforms, and large-scale chemical processing plants. The EG2401S designation covers redundant and non-redundant 24 VDC power conditioning modules that interface directly with the Advant Controller 400 (AC 400) series backplane, providing regulated DC power to I/O subbases and processor boards. Their long service record — spanning installations from the early 1990s through the 2010s — means a substantial global installed base continues to depend on these modules for ongoing operations and lifecycle extension programs.

The Evolution of EG2401S Architecture

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EG2401S Full Catalog & Functionalities (SKU List)

The following SKUs represent verified components within the ABB EG2401S and associated Advant power distribution ecosystem. Each entry reflects a distinct hardware function within the platform.

YPP109A YT204001-DL: Positive-rail 24 VDC power module, load-sharing redundancy variant, for AC 400 subbases.
YPN106A YT204001-BD: Neutral-rail 24 VDC power module, base distribution variant, paired with YPP109A.
EG2401S-AR: Assembly reference designation for the combined YPP109A + YPN106A digital power module set.
YPP110A: Positive-rail power module, non-redundant single-supply variant for lower-density I/O subbases.
YPN107A: Neutral-rail counterpart to YPP110A; used in non-redundant 24 VDC distribution configurations.
YPP112A: Enhanced positive-rail module with extended temperature tolerance for outdoor cabinet installations.
YPN109A: Neutral-rail module matched to YPP112A for extended-temperature deployments.
DSQC604: ABB power supply unit used in Advant robot controller power sections; cross-referenced in multi-axis DCS/robot hybrid installations.
YPP101A: Early-generation positive-rail power module; predecessor to the YPP109A line, found in pre-1995 AC 400 installations.
YPN101A: Neutral-rail predecessor module; paired with YPP101A in legacy Advant OCS racks.
PFSK151: Power supply filter and surge suppression card for Advant MB300 subbases; installed upstream of EG2401S modules.
PFSK152: Upgraded surge suppression card; replaces PFSK151 in post-2000 Advant installations.
DSPC172: AC 400 series CPU processor board; primary consumer of regulated 24 VDC output from EG2401S modules.
DSDI110A: 24 VDC digital input module, 16-channel; powered directly from EG2401S distribution rail.
DSDO115A: 24 VDC digital output module, 16-channel; load on EG2401S positive rail in standard I/O subbase configurations.
DSAI130A: Analog input module, 16-channel; requires stable 24 VDC from EG2401S for accurate signal conditioning.
DSAO120A: Analog output module, 8-channel; dependent on EG2401S neutral-rail stability for 4–20 mA loop integrity.
DSDP170: Profibus DP communication adapter for Advant AC 400; interfaces with EG2401S-powered backplane.

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