Technical Specifications
| Parameter Name | Parameter Value |
|---|---|
| Product Model | 1762-OB8 |
| Manufacturer | Allen‑Bradley (Rockwell Automation) |
| Product Type | Digital Output Module (DC Source) |
| Rated Load Voltage | 24 V DC (20.4 – 26.4 V DC) |
| Number of Output Points | 8 |
| Output Type | Solid‑State, Source (Sourcing) |
| Maximum Current per Point | 1 A @ 30 °C |
| Maximum Current per Module | 8 A (total, all points) |
| Maximum Surge Current | 2 A (10 ms) |
| On‑State Voltage Drop | ≤ 1.0 V DC |
| Off‑State Leakage Current | ≤ 1 mA |
| Switching Delay (On/Off) | 0.1 ms / 1.0 ms (resistive load) |
| Backplane Current Draw | 115 mA @ 5 V DC |
| Isolation | Field to Logic (Reinforced, 75 V DC working) |
| Connection Type | Screw Terminal |
| Operating Temperature | 0 °C to 55 °C (32 °F to 131 °F) |
| Dimensions (H × W × D) | 90 mm × 40.4 mm × 87 mm (3.54 in × 1.59 in × 3.43 in) |
Main Features and Advantages
High‑Density, Compact Design: The 1762‑OB8 packs eight independently controlled output points into an ultra‑compact form factor, maximizing I/O density in control panels where space is at a premium. Its narrow width (40.4 mm) allows multiple modules to be stacked efficiently on the DIN rail alongside the MicroLogix controller, minimizing the overall footprint of the control system. This high density makes it ideal for OEM machine builders who need to maximize functionality within a small enclosure.Fast Switching and Reliable Performance: Utilizing solid‑state MOSFET technology, the 1762‑OB8 delivers fast and precise switching with minimal delay (0.1 ms turn‑on, 1.0 ms turn‑off), enabling quick response to control logic changes. The module is designed for robust operation in noisy industrial environments, featuring optical isolation between the logic and field sides to protect the controller from voltage transients and ground loops. With a wide operating voltage range (20.4–26.4 V DC), it maintains stable performance even with fluctuating power supplies.Ease of Installation and Diagnostics: The module features removable screw terminal blocks that simplify wiring and reduce installation time. Each of the eight output points has a dedicated LED indicator, providing immediate visual feedback on the output status for quick troubleshooting. The 1762‑OB8 is designed for easy integration with Allen‑Bradley’s RSLogix 500 programming software, where output forces and diagnostics can be performed directly from the programming interface.
Application Field
The Allen‑Bradley 1762‑OB8 is widely used in discrete manufacturing and machine automation applications that require reliable, low‑power digital control. In packaging machinery, it controls solenoids for air valves, actuates clutches and brakes, and drives indicator lights for machine status. For material handling systems, such as small conveyor belts and sorting lines, the module operates relays and contactors that start and stop motors, as well as control diverters and gates.The 1762‑OB8 is also commonly found in assembly automation, where it drives pneumatic actuators and tooling clamps, and in industrial HVAC control systems for operating dampers and fan relays. Its 24 V DC source output configuration makes it particularly suitable for systems that utilize a centralized negative common, simplifying the wiring harness design in control cabinets. The module’s rugged construction and immunity to electrical noise make it a dependable choice for harsh environments like automotive assembly plants and food & beverage processing lines.
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