The internal green FIO backplane board (slots I01–I08), the front plastic faces of the modules, and the connection nodes are very clean and physically intact. However, the external sheet metal casing, rack mounting flanges, and chassis base plate suffer from severe oxidation/rusting and galvanic scaling (see high-resolution photos). Unit is untested and sold strictly As-Is, For Parts or Repair only.
This is is an industrial surplus Yokogawa ProSafe-RS Safety Instrumented System (SIS) bundle, featuring an SSC50D-S2E21 Duplexed Safety Control Unit base frame running Style S2 hardware revisions.
This platform serves as a high-integrity, fault-tolerant logic solver designed for critical emergency shutdown (ESD) networks. Although the outer structural metal frame is heavily weathered and rusted, the highly valuable internal safety architecture components remain physically complete and clean on their contact faces.
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What is Included in this Lot:
- Chassis Base Frame: Yokogawa SSC50D-S2E21 (Style S2, Date of Manufacture: 2016.04)
- Dual Safety Processors: 2× Seated Yokogawa SCP461-51 (Style S1) Processors
- Dual Redundant Power Supplies: 2× Yokogawa SPW482-E3 (Style S1) 220-240V AC Power Modules
Item Technical Breakdown (From Label Specifications):
- Model: SSC50D
- Suffix Suffix Code: -S2E21
- S: Standard Temperature Rating (-20 to 40 °C) with ISA Standard G3 Conformal Coating
- 2: Dual-redundant power routing pathways
- E: Enhanced Explosion Protection certification tier
- 21: 220–240 V AC Power Grid Input configuration
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Disclaimer: Due to the severe structural casing oxidation, this item is sold entirely without warranty, functionality guarantees, or safety compliance certifications. Perfect for an industrial automation technician looking to salvage the internal SCP461 processor chips, SPW482 modules, or the unbent backplane slots.