ABB YWP-AH YWP-AH 1MRK000005-258 MiCOM YWP-AH Auxiliary Relay Module

Overview The ABB YWP-AH 1MRK000005-258 is an auxiliary relay card for ABB MiCOM series protection relays. It is used for trip circuit interlock, signal amplification and contact expansion, widely stocked as spare for substation protection cabinets.

Features This YWP-AH auxiliary relay board adopts plug-in design for MiCOM protection relays. The YWP-AH 1MRK000005-258 has dry contact output, built-in surge suppression and LED status indication. It supports fast switching for protection trip and alarm signal, and is a legacy spare part for ABB MiCOM protection systems.

Specs Model: YWP-AH, Part No.1MRK000005-258 Series: ABB MiCOM YWP-AH Type: Auxiliary relay module Mounting: Plug-in inside relay chassis Protection class: IP20 Certifications: CE, IEC 60255 Product status: obsolete power protection spare

Principle The module receives control signal from the main protection relay and switches its relay contacts to drive external trip coils or alarm circuits. It provides signal isolation and contact capacity expansion for protection logic.

Applications The YWP-AH 1MRK000005-258 is widely deployed in high-voltage substations, thermal power plants and utility switchgear panels. It serves as auxiliary signal relay for MiCOM protection relays.