GE IC693MDL940 16-Point Relay Output Module | Replacement, Equivalent & Selection Guide
The GE IC693MDL940 is a 16-point isolated relay output module designed for the GE Fanuc Series 90-30 PLC platform. Each output is rated at 2A and supports both AC and DC loads, making it a versatile choice for discrete control applications in industrial automation. This page provides full technical specifications, compatible replacement options, and a structured selection guide to help engineers and procurement teams make confident sourcing decisions.
Technical Specifications
- Part Number: IC693MDL940
- Manufacturer: GE Fanuc / GE Automation & Controls
- Platform: Series 90-30 PLC
- Module Type: Discrete Output — Relay
- Number of Outputs: 16 points
- Output Current: 2A per point
- Output Voltage: 120/240 VAC or 24 VDC
- Isolation: Optically isolated, relay contact output
- Backplane Compatibility: Series 90-30 5-slot, 10-slot, and expansion racks
- Operating Temperature: 0°C to 60°C
- Dimensions: Standard Series 90-30 single-slot form factor
- Weight: ~500g
- Certifications: UL, CE
Compatible Replacement & Equivalent Models
When the IC693MDL940 is unavailable or discontinued, the following models are commonly evaluated as replacements. Always verify firmware compatibility and rack slot requirements before substitution.
- IC693MDL940D — Revised revision of the same module; direct drop-in replacement in most applications
- IC693MDL940E — Latest revision; functionally equivalent, improved relay life rating
- IC693MDL930 — 8-point relay output alternative; use when fewer output points are required
- IC693MDL916 — 16-point transistor output module; suitable for high-speed switching applications (DC loads only)
- Horner HE693MDL940 — Third-party compatible module; verify with system integrator before use
Note: Third-party equivalents may require configuration adjustments in Proficy Machine Edition or the legacy Logicmaster 90 software.
Why Choose the Original IC693MDL940
- ✅ Proven field reliability — Widely deployed in manufacturing, utilities, and process control since the 1990s
- ✅ Relay contact output — Handles both AC and DC loads without additional interface relays
- ✅ Optical isolation — Protects the PLC backplane from load-side transients
- ✅ Hot-swap capable — Supports module replacement without full system shutdown (rack-dependent)
- ✅ GE Fanuc certified — Full OEM documentation and firmware support available
Typical Applications
- Motor starter and contactor control in discrete manufacturing lines
- Conveyor and material handling system I/O
- HVAC and building automation relay switching
- Water treatment and pump station control panels
- Oil & gas wellhead and pipeline automation
- Utility substation auxiliary relay control
System Compatibility
The IC693MDL940 is compatible with the following GE Series 90-30 rack and CPU configurations:
- Racks: IC693CHS391, IC693CHS392, IC693CHS393 (5-slot); IC693CHS397, IC693CHS398, IC693CHS399 (10-slot)
- CPUs: IC693CPU311, IC693CPU313, IC693CPU321, IC693CPU323, IC693CPU331, IC693CPU340, IC693CPU341, IC693CPU350, IC693CPU360, IC693CPU363, IC693CPU364, IC693CPU374
- Programming Software: Proficy Machine Edition 9.x / Logicmaster 90-30
- Communication: Compatible with Genius Bus, Ethernet NIU, and DeviceNet via Series 90-30 network modules
Selection Guide
Use the following criteria to determine whether the IC693MDL940 is the right module for your application:
- Load type: If your loads are AC (120/240V) or mixed AC/DC, relay output (IC693MDL940) is preferred over transistor output modules.
- Switching speed: Relay outputs are suitable for switching frequencies below 1Hz. For faster cycling, consider IC693MDL916 (transistor output).
- Point count: 16 points per slot. If fewer points are needed, IC693MDL930 (8-point) may reduce cost.
- Inrush current: Relay contacts handle motor inrush; verify 2A continuous rating is not exceeded under steady-state load.
- Replacement scenario: For direct replacement, match the revision suffix (D or E) to your existing system documentation to avoid firmware conflicts.
Quality Assurance & Sourcing
All GE IC693MDL940 modules supplied by Konmask.com are sourced through verified industrial distribution channels. Each unit undergoes the following before shipment:
- Visual inspection for physical damage and label integrity
- Functional power-on verification where applicable
- Anti-static packaging with humidity indicator card
- Traceability documentation available upon request
We supply both new surplus and refurbished units. Condition is clearly stated on each listing. Warranty terms are available on our Returns & Warranty Policy page.
How to Order
- Confirm your Series 90-30 rack model and available slot count.
- Verify the required output revision (standard IC693MDL940, or suffix D/E).
- Add to cart and proceed to checkout, or contact us for bulk/project pricing.
- For urgent requirements, email support@konmask.com with your project timeline.
Replacement & Compatibility FAQ
Q: Is IC693MDL940D a direct replacement for IC693MDL940?
A: Yes. The D revision is functionally identical and is a drop-in replacement in all standard Series 90-30 racks.
Q: Can I use IC693MDL940 in a Series 90-70 rack?
A: No. The IC693MDL940 is designed exclusively for the Series 90-30 backplane. Series 90-70 uses a different module form factor (IC697 series).
Q: What is the relay contact life rating?
A: Typically 100,000 mechanical operations and 30,000 electrical operations at rated load. The E revision offers an improved electrical life rating.
Q: Do you supply GE Fanuc programming cables or software with the module?
A: Programming cables (IC690USB901 or IC693CBL316) and software licenses are available separately. Contact us for a bundled quote.
Q: Can this module be used with a third-party PLC rack?
A: No. The IC693MDL940 uses GE’s proprietary Series 90-30 backplane bus and is not compatible with other manufacturers’ racks.
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