GE IC3600SOTD1 | OEM Overtemperature Trip Card

Description

• Model & Brand: GE IC3600SOTD1, General Electric Speedtronic Mark I-II overtemperature card. Multiple industrial reference catalogs identify the part as an Over Temperature Card / Overtemperature Trip Card for Mark I-II IC3600 systems.
• Series: Mark I-II IC3600 turbine control system.
• Physical Dimensions: An authoritative GE dimensional drawing for this exact card was not located in the available public documentation. Treat the PCB as a legacy plug-in control card rather than using a generic RX3i or Mark VI module envelope.
• Estimated Shipping Weight: No reliable OEM net-weight figure was identified. For freight planning, use the actual packed weight after ESD protection, cushioning, and cartonization.
• Board Construction: Published photographs and technical descriptions show a populated printed-circuit card with multiple resistors, capacitors, transistors, and front-accessible potentiometer adjustments.
• What’s in the Box: Normally the IC3600SOTD1 card only. Do not assume a mating card rack, extender, terminal hardware, calibration accessories, or OEM manual are included unless they are expressly listed in the shipment documentation.
• Receiving Record: Photograph the GE part-number marking, board condition, connector/pin area, adjustment hardware, revision markings if present, and ESD packaging before inventory acceptance.

Product Introduction

The IC3600SOTD1 belongs to the early GE Speedtronic Mark I-II IC3600 turbine-control generation and is identified as an overtemperature / overtemperature-trip card. Its role is associated with turbine temperature protection rather than general-purpose process I/O. In field maintenance, that distinction is important: this is a protection-function circuit card inside a legacy turbine control architecture, so replacement should be treated as a controlled protection-system intervention.

Visually, the card contains a dense collection of discrete components and eight dark-blue adjustable potentiometers with access through the faceplate, according to an inspection description for this exact model. That hardware profile is typical of an older analog/control implementation, where calibration points were physically accessible on the board (a very different maintenance philosophy from modern software-configured I/O).

Core Technical Specifications

The exact model is independently listed as an Over temperature Card in a GE Mark I-II IC3600 product catalog, while another technical reference specifically classifies it as an Overtemperature Trip card.

Because this is a decades-old discrete control card, unsupported assumptions about 24 VDC operation, current consumption, digital memory, or modern communication interfaces should be avoided. The available evidence does not justify assigning those values to the IC3600SOTD1.

GE IC3600SOTD1

🚨 Global Compliance & Industry Certifications

The predates the certification framework normally associated with newer GE/Emerson PLC and DCS modules.

For this exact part number, the available public references do not provide sufficient evidence to claim current CE Mark, UL/CSA, ATEX, IECEx, or DNV/GL certification. That is not equivalent to saying the original Mark I-II turbine system had no approval documentation; it means the certification evidence for this exact card should be obtained from the installed-system documentation or OEM records.

For compliance-controlled replacement, retain:

• The physical certification or approval markings, if any, found on the actual card.
• The original GE system manual and equipment certification file.
• The turbine package’s hazardous-area or marine approval documents, where applicable.
• The exact board revision and assembly identification.

A modern hazardous-location certification should not be inferred merely because a reseller describes the item as suitable for a particular plant environment.

Verify specific lot certifications with OEM.

For a safety-related overtemperature trip function, the certification of the complete installed control system can be more important than an isolated board-level marketing claim.

🚨 Long-Term Storage & Asset Preservation Guide

Store it as a legacy electronic control asset, not as ordinary warehouse hardware. Keep the PCB in a proper ESD shielding bag, supported by cushioning that prevents the edge connector and board-mounted components from carrying shock loads.

Control humidity and condensation. The public references reviewed here do not establish a reliable OEM storage-humidity figure for . Use a dry, temperature-stable electronics storage area and avoid repeated movement between cold storage and warm humid air (condensation on older component leads is a preventable failure mechanism).

Protect the adjustment hardware. The eight accessible potentiometers are part of the physical calibration scheme. Do not rotate them merely to “check that they move.” Record their original positions before any bench work, and use appropriate calibration documentation before making adjustments.

For long-term inventory, retain photographs of the board condition and connector edge before sealing the ESD package. A card that is visually intact but has disturbed calibration settings should not be released as an uncontrolled replacement.

Physical Installation Prerequisites

The is a legacy plug-in control card for GE Mark I-II Speedtronic equipment, so installation requirements depend heavily on the exact turbine control cabinet and card-rack implementation.

• Rack identity: Confirm that the target cabinet is actually a Mark I or Mark II IC3600 installation.
• Card position: Use the existing system documentation to confirm the correct rack slot and board location. Do not substitute a position based solely on the card’s physical dimensions.
• Power isolation: Remove and verify the applicable control-circuit power before extracting the card unless the approved Mark I-II maintenance procedure specifically states otherwise.
• Connector care: Inspect the card-edge contacts and mating backplane for oxidation, contamination, damaged guides, or abnormal insertion force.
• Calibration: Record the positions of all adjustable potentiometers before replacement and compare the replacement card against the approved calibration values.
• Grounding: Follow the original turbine-control cabinet grounding and shielding arrangement. Avoid creating a new return path through the card mounting hardware.
• Cooling: Preserve the cabinet’s original airflow path. This card’s heat load is not reliably documented in the public references reviewed, so do not substitute a generic clearance value for the OEM cabinet arrangement.
• ESD: Use grounded ESD handling procedures whenever the PCB is outside its enclosure or ESD bag.

Buyer’s FAQ

What HS tariff code should be used for ?

There is no defensible universal HS code for this legacy board based on the part number alone. Customs classification depends on the importing country’s tariff schedule and the board’s declared principal function. A broker should review whether the card is classified as a part of electrical control equipment or under another applicable heading before the commercial invoice is finalized.

Does Country of Origin need to be stated separately?

Yes. COO should be supported by actual manufacturer or supplier documentation and remain consistent across the commercial invoice, packing list, and any Certificate of Origin. For a legacy GE board, do not infer origin simply from the current corporate ownership of the product line.

Should a card this old be shipped with insurance?

For a turbine protection spare, insurance is generally sensible when the replacement value is significant. Photograph the PCB, edge connector, part-number marking, adjustment hardware, and packaging before shipment. Those records establish condition before carrier handover.

Does the contain the latest firmware?

No conventional firmware package has been identified for this card. The available evidence describes it as a hardware overtemperature / trip circuit card built from discrete electronic components and adjustable potentiometers rather than a modern firmware-configured I/O module.

For a replacement, calibration state and hardware revision are more important than firmware version. Do not alter the potentiometer settings without the approved turbine-control calibration procedure.

Asset-Control Summary

GE is a legacy Mark I-II Speedtronic overtemperature trip card. Public references consistently place it in the Mark I-II turbine-control family and identify its function as overtemperature protection/trip circuitry.

The key warehouse risk is incomplete identity. Exact dimensions, net weight, electrical ratings, environmental limits, and certification evidence were not reliably established from the available public OEM-level documentation, so those fields should remain controlled as “to be verified” against the physical card and original GE system documentation rather than being populated with guessed values.

For a controlled spare, retain the full part number, any revision/assembly marking, serial or lot information, calibration-state record, certification evidence, ESD packaging, and pre-shipment photographs. The family is a legacy platform, so replacement planning should be based on installed-system compatibility and verified card condition rather than on generic interchangeability claims.