Manufacturer: Allen-Bradley
Product No.: 1769-OB8
Country of origin:United States
Product Type: Digital Output Modules
Payment: T/T, Western Union
Weight: 280g
Dimensions: 117.5 mm x 148 mm x 153 mm (D x H x W)
Shipping port: Xiamen
Warranty: 12 months
The Allen-Bradley 1769-OB8 is a Compact solid-state high-current 24V DC sourcing output module designed to drive field devices within CompactLogix, MicroLogix 1200, and MicroLogix 1500 control systems. Featuring 8 high-power output channels divided into two isolated groups, the 1769-OB8 supplies DC power to sinking field loads such as relays, solenoids, and indicators. The device includes configurable hold-last-state and user-defined safe state behaviors for system program and fault transitions.
Provides 8 high-current solid-state sourcing output channels.
Divided into two isolated groups (Outputs 0–3 and Outputs 4–7) with independent common connections.
Features configurable Hold Last State and User-Defined Safe State logic for Program and Fault modes.
Equipped with individual I/O diagnostic LEDs for channel status monitoring.
Uses a removable, finger-safe terminal block (RTB) with write-on user identification label.
Driving high-current 24V DC solenoids, actuators, and control relays.
Switching discrete field indicators and signaling devices in automated machinery.
Interfacing CompactLogix or MicroLogix controllers with industrial field instrumentation.
| Parameter | Specification |
| Manufacturer | Allen-Bradley |
| Model | 1769-OB8 |
| Country of Origin | Malaysia |
| Module Type | Compact Solid State 24V DC Source High Current Output Module |
| Number of Outputs | 8 channels |
| Output Signal / Operating Voltage Range | 20.4V DC to 26.4V DC (sourcing) |
| Voltage Category | 24V DC |
| Continuous Current Per Point (max) | 2.0A at 60 degC (140 degF) |
| Continuous Current Per Module (max) | 8.0A at 60 degC (140 degF) |
| Surge Current (max) | 4.0A (repeatable once every 2 seconds for 10 ms) |
| On-State Current (min) | 1.0 mA |
| Off-State Leakage (max) | 1.0 mA at 26.4V DC |
| On-State Voltage Drop (max) | 1.0V DC at 2.0A |
| Signal Delay (max) - Resistive Load | Turn-on = 0.1 ms; Turn-off = 1.0 ms at 60 degC max load (2A), 1.5 ms at 60 degC min load (1 mA) |
| Bus Current Draw (max) | 145 mA at 5V DC (0.725W) |
| Heat Dissipation | 2.20 Total Watts |
| Power Supply Distance Rating | 8 modules |
| Isolation Voltage | 1200V AC for 1 sec. or 1697V DC for 1 sec. (75V DC working voltage) |
| Isolated Groups | Group 1: Outputs 0–3 (DC COM 1); Group 2: Outputs 4–7 (DC COM 2) |
| Operating Temperature | 0 degC to +60 degC (32 degF to +140 degF) |
| Storage Temperature | -40 degC to +85 degC (-40 degF to +185 degF) |
| Operating Humidity | 5% to 95% non-condensing |
| Operating Altitude | 2000 meters (6561 feet) |
| Dimensions (H x W x D) | 118 mm x 35 mm x 87 mm (height including mounting tabs is 138 mm) |
| Approximate Shipping Weight | 280 g (0.61 lbs.) |
| Terminal | Function |
| +VDC 1 | External +24V DC power supply input for Group 1 (Outputs 0–3) |
| OUT 0 | Output channel 0 |
| OUT 1 | Output channel 1 |
| OUT 2 | Output channel 2 |
| OUT 3 | Output channel 3 |
| DC COM 1 | DC common connection for Group 1 |
| NC | No connection |
| +VDC 2 | External +24V DC power supply input for Group 2 (Outputs 4–7) |
| OUT 4 | Output channel 4 |
| OUT 5 | Output channel 5 |
| OUT 6 | Output channel 6 |
| OUT 7 | Output channel 7 |
| DC COM 2 | DC common connection for Group 2 |
Enclosure Requirements: Mount the open-type equipment inside an enclosure suitable for Pollution Degree 2 industrial environments.
System Assembly: Secure adjacent modules using upper/lower tongue-and-groove slots, align bus connectors, and lock the bus lever fully to the left.
Termination: Terminate the end of the serial communication bus using a 1769-ECR or 1769-ECL right or left end cap.
Mounting Clearance: Maintain 50 mm (2 in.) spacing on all sides for proper ventilation.
DIN Rail / Panel Mounting: Secure to a panel using two M4 or #8 screws, or mount on $35\times7.5\text{ mm}$ or $35\times15\text{ mm}$ DIN rails.
Wiring Torque: Torque terminal screws to 0.68 Nm (6 in-lbs) and RTB retaining screws to 0.46 Nm (4.1 in-lbs).
UL 508 Listed
C-UL certified under CSA C22.2 No. 142
CE compliant for all applicable directives
C-Tick compliant
Class I, Division 2, Groups A, B, C, D Hazardous Locations (UL 1604, C-UL under CSA C22.2 No. 213)
| Product Image | Model Number / Title | Condition | Availability | Action |
|---|---|---|---|---|
|
Yokogawa ADM51C-2 CENTUM VP Contact Output Module | Original New | In Stock | View Details |
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Returns & Warranty
Orders are processed and delivered Monday-Friday (excluding public holidays).
For full eligibility, restocking fees, and international return details, please view our official Refund & Return Policy .
| Country of origin |
United States
|
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