1762-OB8 Allen-Bradley MicroLogix 8-Point Digital DC Output Module
The 1762-OB8 from Allen-Bradley adds 8 digital 24V DC sourcing outputs to MicroLogix 1200 controllers. It uses solid-state switching for fast response. The module fits DIN rail mounting and draws 115 mA at 5V DC from the backplane. Engineers choose this MicroLogix 1200 expansion output module for reliable control of relays, solenoids, and small DC loads. Key benefit: 0.5A per point and 4A total per module support dense output groups without extra hardware. Part number 1762-OB8 belongs to the MicroLogix 1200 series and is UL, c-UL, and CE certified.
Technical Specifications
| Parameter | Value |
|---|---|
| Brand | Allen-Bradley (Rockwell Automation) |
| Model / Catalog No. | 1762-OB8 |
| Series | MicroLogix 1200 |
| Module Type | Solid-state expansion output module |
| Output Count | 8 digital, 24V DC sourcing |
| Operating Voltage Range | 20.4 to 26.4V DC |
| Backplane Current | 115 mA at 5V DC |
| Max Current per Point | 0.5A |
| Max Aggregate Current | 4A per module |
| Signal Delay (ON / OFF) | 0.1 ms / 1.0 ms at resistive load |
| ON-State Voltage Drop | 1.0V DC max |
| Leakage Current (ON/OFF) | 1.0 mA max |
| Intermittent Surge | 2A for 10 ms, repeatable every 2 s |
| Isolation (Group to Backplane) | 1200V AC / 1697V DC for 1 s |
| Power Dissipation | 1.6W |
| Operating Temperature | 0 to 55°C (32 to 131°F) |
| Storage Temperature | -40 to 85°C (-40 to 185°F) |
| Relative Humidity | 5 to 95% non-condensing |
| Shock / Vibration | 30G shock, 5G at 500 Hz |
| Max Altitude | 6561 ft (2000 m) |
| Mounting | DIN rail |
| Power Supply Distance | 6 module lengths max |
| Shipping Dimensions | 90 x 87 x 40.4 mm |
| Weight | 210 g average |
| Certifications | UL, c-UL, CE |
Note: 1762-OB8 operates with 24V DC nominal. Use within 20.4–26.4V DC for stable output. The module supports 8 sourcing outputs. Plan wiring for 4A total per module.
Installation Guide
- Mount the 1762-OB8 on a standard DIN rail inside a suitable enclosure.
- Set the module within 6 module lengths of the power supply.
- Connect 24V DC field wiring to the output terminals. Observe polarity for sourcing outputs.
- Keep total load below 4A per module. Limit each point to 0.5A.
- Verify backplane current: 115 mA at 5V DC.
- Use shielded cable in high-noise areas. The module offers group-to-backplane isolation.
Commissioning and Maintenance
Commissioning: Check output behavior point by point. Use a resistive load for timing tests. ON delay is 0.1 ms. OFF delay is 1.0 ms. Confirm the 1.0V DC max ON-state drop. Confirm leakage current stays below 1.0 mA. Maintenance: Inspect terminals for tightness. Clean dust from the module surface. Verify operating temperature stays within 0 to 55°C. Keep humidity at 5 to 95% non-condensing. The solid-state design needs no routine calibration.
Compatibility Notes
The 1762-OB8 works with MicroLogix 1200 controllers as an expansion I/O module. It also follows the 1762 expansion I/O family. Use it with 24V DC sourcing input circuits and compatible terminal bases. Confirm controller firmware supports the connected module count. The module draws 115 mA from the 5V backplane. It fits standard DIN rail systems.
Diagnostics and Typical Applications
Diagnostics: The module has no local LEDs per point. Rely on controller status and output state feedback. Use a multimeter to check output voltage at each point. Verify ON-state voltage drop is ≤1.0V DC. Check leakage current if loads stay partially energized. Typical applications: relay and solenoid drive, small DC motor starters, indicator lamps, pneumatic valve control, packaging equipment, and material handling conveyors. Best fit: 24V DC loads that need fast ON/OFF action and high cycle life.
Why Buy From Oiltech Controls?
- 15+ years of industrial automation spare parts experience.
- Global shipment support via FedEx, UPS, and DHL.
- Tested industrial surplus / refurbished options available.
- 12-month warranty on eligible products.
- Technical verification before shipment to confirm part number and condition.
- Support for obsolete control systems, including legacy MicroLogix modules.
Contact our team for stock, lead time, and test reports. Email: info@oiltechcontrols.com | WhatsApp: +86 158 8020 0923
Packaging and Shipping
Package includes: 1x Allen-Bradley 1762-OB8 module. Shipping box dimensions match 90 x 87 x 40.4 mm. Average weight is 210 g. Shipping methods: FedEx, UPS, and DHL. Tracking is provided. Warranty: 12 months against functional defects under normal use. Keep the original packaging for returns.
FAQ
- Q: What is the output voltage of the 1762-OB8? A: It provides 24V DC sourcing outputs within 20.4–26.4V DC.
- Q: How many outputs does the module have? A: 8 digital outputs.
- Q: What is the max current per point? A: 0.5A per point, 4A total per module.
- Q: Does it work with MicroLogix 1200? A: Yes, it is a MicroLogix 1200 expansion output module.
- Q: What certifications does it carry? A: UL, c-UL, and CE.
- Q: What is the warranty? A: 12 months from Oiltech Controls on eligible units.
Copyright © 2026 Oiltech Controls Limited. All rights reserved.
Original Source: https://www.oiltechcontrols.com/
All rights reserved.
Reviews
There are no reviews yet.