GE IS200WEMAH1AEA WEMA Board – Measurement/Interface Module for Mark VI/Excitation Racks

The GE IS200WEMAH1AEA is a factory GE spare from the IS200 series, typically used as a measurement/interface board inside Mark VI/VIe and related excitation control frames. From my experience, it’s chosen when you need a reliable, drop‑in replacement that restores analog conditioning and backplane interfacing without reworking the cabinet. You might notice that GE’s WEMA family tends to run cool and draws power from the rack, so integration is straightforward and downtime stays short.

Company’s Order Placement Process and Guarantees

• Warranty: 365 days
• Lead time: 1 week for in‑stock items; no more than 1 month at the latest
• Payment: 50% advance payment; full payment prior to delivery
• Express options: FedEx, UPS, DHL

Key Features

• Original GE IS200 spare – Marked IS200WEMAH1AEA (H1 hardware), intended as a direct, rack‑mounted replacement.
• Backplane‑powered design – Typically powered from the control rack, avoiding external field power wiring.
• Mixed analog/digital interfacing – Suited for conditioning and routing measurements to the system controller via the GE backplane.
• Standard IS200 form factor – Fits GE card guides and faceplate screw positions for quick swap‑outs.
• Field‑proven in power and process environments – In many cases, users report quieter operation and stable drift characteristics after installation.
• Serviceable part numbering – The WEMA code supports maintenance traceability and revision control at site level.

Technical Specifications

Application Fields

This part appears most often in power generation and heavy industry cabinets where robust analog measurement and stable backplane communication are required.

• Gas/steam turbine control cabinets (Mark VI/VIe)
• Excitation and AVR systems in power plants
• Industrial drives and auxiliary process skids using GE IS200 hardware
• Upgrade and life‑extension projects replacing aging WEMA revisions

Advantages & Value

• Reliability – Original GE construction; in many cases, these boards show low drift and consistent calibration over long runs.
• Compatibility – Drop‑in fit within the intended rack, minimizing re‑commissioning effort.
• Cost control – Short lead time helps avoid extended outage costs; predictable spares strategy for fleet standardization.
• Technical support – We typically help match revisions to site BOMs and advise on swap‑over checks, which reduces risk during outage windows.

Installation & Maintenance

• Cabinet environment – Install in a clean, ventilated control cabinet meeting GE rack standards; avoid high vibration and condensation.
• ESD handling – Use grounded wrist straps and antistatic packaging; handle only by the faceplate and edges.
• Wiring – No field terminations on the board in most cases; ensure backplane connectors are clean and fully seated.
• Commissioning – After insertion, run system diagnostics; verify analog readings and alarms against setpoints.
• Routine care – Annual cabinet dust removal, connector inspection, and firmware/config checks where applicable. Calibration checks may be scheduled based on site QA routines.

Quality & Certifications

• Manufacturing quality: Produced under GE quality systems (ISO 9001 at the system level).
• Compliance: Designed for use within CE‑marked control systems; UL/CSA recognition applies at the assembled rack level.
• Material restrictions: RoHS status can vary by build date and revision; we can verify against your spec sheet.
• Warranty: 365‑day warranty as stated above.

One thing I appreciate is how straightforward the swap usually is. A maintenance supervisor told us their unit “slotted in, ran self‑tests clean, and the turbine came up on schedule,” which is exactly what you want during a tight outage window.