GE IC694MDL660 | 24 VDC 32-Point Input Module | OEM

• Model & Brand: GE Fanuc / General Electric IC694MDL660
• Series: PACSystems RX3i
• Part Type: 24 VDC, 32-point positive/negative logic discrete input module
• Physical Dimensions: Approximately 27.4 × 3.5 × 13.5 cm (W × H × D); verify the actual module and terminal-block projection for cabinet-layout work.
• Estimated Shipping Weight: Approximately 0.25–0.35 kg for the module and protective packaging; actual packed weight should be used for freight documentation.
• What’s in the Box: IC694MDL660 input module, ESD protective packaging, and applicable inspection/QC documentation. IC694TBB032 box-style or IC694TBS032 spring-style terminal block is ordered separately.

Product Introduction

The GE IC694MDL660 installs in an RX3i Universal Backplane and provides 32 discrete DC input points, divided into four electrically isolated groups of eight. Each group has its own common, which is useful when field circuits come from different sources or require separate reference arrangements. The module accepts positive or negative logic signals up to 30 VDC, with a programmable input filter that can be set from 0.5 ms to 100 ms.

This is a high-density legacy RX3i input module, not a generic 24 VDC replacement. Its field interface depends on the separate removable terminal block, while the module reports both point status and terminal-block presence to the CPU. For brownfield maintenance, preserve the original terminal-block type and filter configuration (those two details can affect both wiring and observed input response).

Core Technical Specifications

The module’s 300 mA backplane current at 5 VDC is a useful cabinet-power figure because all 32 inputs active represents the documented maximum consumption condition. That equates to approximately 1.5 W from the 5 V bus, excluding heat generated elsewhere in the rack.

🚨 Global Compliance & Industry Certifications

For a compliance-controlled installation, distinguish the module’s electrical isolation specifications from its formal product approvals.

• UL / CSA: Emerson’s current product record identifies UL 508 approval and the equivalent Canadian industrial-control standard for ordinary locations.
• Hazardous Locations: The same product record identifies Class I, Division 2, Groups A, B, C, D approval. This matters where flammable gases or vapors may be present because the approved equipment classification establishes the conditions under which the module can be used without becoming an ignition source.
• CE Mark: Verify the applicable RX3i declaration for the production revision and system installation.
• ATEX / IECEx: Do not infer ATEX or IECEx certification solely from the Class I Division 2 approval. The applicable certificate and complete installed architecture must be verified separately.
• Marine / DNV GL: No standalone marine approval should be assumed without project-specific certification documentation.
• Electrical isolation: The published 1500 VAC for one minute rating is an isolation specification, not a hazardous-area certificate.
• Country of Origin: Establish from actual manufacturing traceability rather than shipping location.
• HS Classification: Confirm the final tariff classification with the destination-country customs broker.

Verify specific lot certifications with OEM.

GE IC694MDL660

🚨 Long-Term Storage & Asset Preservation Guide

Keep the IC694MDL660 in an ESD shielding bag and protect the rear backplane connector from repeated contact. The connector should not be left exposed on a warehouse shelf where dust, humidity, or accidental bending can compromise individual contacts.

Although the module is specified for non-condensing industrial environments, use a controlled warehouse target of below approximately 60% RH for multi-year storage. Avoid rapid temperature changes that can create condensation inside the module.

Preserve the original terminal-block type and filter configuration with the inventory record. The CPU receives filter configuration through module output-reference data, so an input response that seems incorrect after replacement may actually reflect a configuration difference rather than a failed electronic channel.

Do not automatically reform capacitors on a stored MDL660. First inspect the actual component population and use the approved RX3i maintenance procedure for the specific revision.

Physical Installation Prerequisites

Install the IC694MDL660 in an RX3i Universal Backplane I/O slot with the correct removable terminal block. GE documentation permits this module in any RX3i I/O slot, but it cannot be used with a Series 90-30 PLC CPU.

The supported terminal blocks are IC694TBB032 box-style and IC694TBS032 spring-style. Confirm the existing terminal hardware before ordering because the terminal block is a separate item.

For energized-backplane replacement, GE documents hot insertion/removal support for the applicable RX3i backplane, with an important condition: remove the field terminal block from the module during the procedure. Site electrical-safety rules remain controlling.

Maintain the cabinet’s designed convection path and rack spacing. Do not impose a universal 50 mm clearance if the actual RX3i cabinet drawing specifies another arrangement. Keep the terminal block fully latched, the retaining mechanism engaged, and field wiring separated from high-noise power circuits where required by the installation design.

Buyer’s FAQ — Logistics & Compliance Focus

Q: What HS Tariff Code should I use for ?
A: The module is an industrial discrete-input PLC component, but the final Harmonized System classification depends on the importing country’s tariff schedule and customs interpretation. Use the classification confirmed by the importer or customs broker rather than assuming one code applies globally.

Q: Does the seller’s shipping country determine Country of Origin?
A: No. COO should be supported by manufacturing or traceability documentation for the actual module or lot. Warehouse location and export port are not sufficient evidence of manufacturing origin.

Q: Does the include the latest firmware pre-loaded?
A: Do not assume it. The module has its own identification and configuration behavior, while the input-filter settings and system compatibility depend on the RX3i CPU/software environment. GE documentation specifies RX3i CPU release 2.90 or later and excludes Series 90-30 CPUs.

Q: What about shipping insurance and physical handling?
A: Insure the shipment for its documented commercial replacement value and photograph the model label, terminal interface, and packaging before dispatch. Use an ESD shielding bag, rigid connector protection, moisture protection, and internal cushioning; the module should remain immobilized inside the carton during transit.