Description
1. Unboxing & Physical Snapshot
- Model & Brand: Rockwell Automation / Allen-Bradley FLEX I/O Series 24V DC Sourcing Output Module (Part No. 1794-OB16)
- Physical Dimensions (Approximate W x H x D): 94.0 mm x 94.0 mm x 69.0 mm (3.7 in x 3.7 in x 2.7 in).
- Estimated Shipping Weight: 0.16 kg (0.35 lbs).
- What’s in the Box: FLEX I/O digital output module, front-panel status LED indicator array, removable terminal base connection interface, and manufacturer compliance documentation.
2. Product Introduction
Distributed I/O architectures deployed in automated manufacturing cells and industrial process skids require compact, reliable modules capable of driving field actuators without consuming excessive panel space. This Allen-Bradley FLEX I/O output module snaps onto standard DIN-rail terminal bases—which is vital for distributing 24V DC switching signals to solenoids, pilot lights, and relay coils across the plant floor.
The ruggedized polymer housing protects internal switching electronics from airborne dust and ambient cabinet humidity. Translating controller output words into precise field actuation commands, this hardware maintains strict loop reliability under continuous operational cycles.
3. Core Technical Specifications
| Parameter | Value |
| Module Type | 16-Point 24V DC Sourcing Digital Output Module |
| Series Compatibility | Allen-Bradley FLEX I/O System Architecture |
| Voltage Rating | 24V DC nominal (10…31V DC operating range) |
| Output Current Rating | 0.5 A per output (maximum 8.0 A per module continuous) |
| Isolation Voltage | 50v (continuous), basic insulation type (field-to-backplane) |
| Operating Temperature Range | -20 °C to +55 °C (-4 °F to +131 °F operational limits) |
| Enclosure Protection Class | IP20 open-style module classification |
| Termination Base Compatibility | Requires 1794-TB2, 1794-TB3, or 1794-TB3S terminal bases |
4. Global Compliance & Industry Certifications
- Expected Regulatory Approvals: CE Mark, UL Listed (UL 508), cUL, CSA C22.2 No. 14, ATEX/IECEx hazardous location compliance (Class I, Division 2), and RoHS environmental directives.
- Safety & Compliance Impact: Compliance with stringent hazardous location standards guarantees that low-voltage transistor switching circuits won’t spark volatile atmospheres when deployed inside Class I, Division 2 control enclosures.
- Verify specific lot certifications with OEM.
5. Long-Term Storage & Asset Preservation Guide
Keep this digital output module sealed inside its original anti-static (ESD) shielding bag to protect internal solid-state MOSFET switches from electrostatic discharge events. Maintain warehouse storage conditions at a relative humidity level strictly below 60% to prevent micro-corrosion on the backplane connector pins over extended holding cycles. Store the unit flat on shelving racks, avoiding heavy stacking loads that could crack or warp the polymer housing enclosure.
6. Physical Installation Prerequisites
- Verify that the compatible 1794 terminal base is securely mounted and grounded onto a standard DIN rail prior to module insertion.
- Align the module alignment guide pins carefully with the terminal base socket to prevent bending backplane pins during installation.
- Ensure field-wiring power supplies are fully de-energized before connecting or disconnecting external actuator loads to the terminal block.
7. Buyer’s FAQ (Logistics & Compliance Focus)
- Q: What Harmonized System (HS) code applies for international customs clearance on this FLEX I/O module?
- A: Industrial automation control modules, programmable logic controller parts, and digital I/O units typically classify under HS code 8537.10 (boards, panels, or consoles for electric control). Confirm local code accuracy with your trade compliance broker.
- Q: Does this module ship with a terminal base included?
- A: No. FLEX I/O modules are typically supplied as plug-in units; the matching 1794 terminal base (such as 1794-TB3) must be ordered separately or sourced from existing panel assemblies.
- Q: How does the Country of Origin (COO) documentation affect our import compliance audit?
- A: Manufacturing origin records correspond to authorized global production facilities for this automation series. Check commercial invoice documentation for precise country records to satisfy trade treaty requirements.
- Q: Is specialized transit insurance recommended during shipment?
- A: Yes. Because electronic I/O modules contain delicate printed circuit assemblies and edge connectors, comprehensive transit insurance guarding against mechanical shock damage is strongly advised.
- A: Yes. Because electronic I/O modules contain delicate printed circuit assemblies and edge connectors, comprehensive transit insurance guarding against mechanical shock damage is strongly advised.
