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- Allen Bradley
- 1769-OW16
- CompactLogix I/O Module
- USA
- 118 mm × 55 mm × 105 mm
- 0.45kg
- Xiamen, China
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Technical Report: Relay Output Module 1769-OW16
1. Product Overview
The 1769-OW16 is a compact industrial relay output module designed for PLC-based automation systems requiring flexible AC and DC switching capability.
It provides 16 normally open relay output channels, arranged in 2 groups of 8 points, allowing direct switching of both AC and DC loads without requiring external solid-state devices.
This module is widely used in medium-power control applications where electrical isolation, load flexibility, and reliability are critical.
2. Brand Information
- Brand: Industrial Automation Control Brand
- Product Category: PLC Relay Output Module
- Technology Field: Industrial Automation / Discrete Control Systems
- Manufacturing Origin: United States (varies by production batch)
3. Product Series
- Series Name: Compact I/O Series
- System Type: Modular PLC expansion platform
- Architecture: Distributed PLC I/O system
- Compatibility: Compact PLC controllers and Micro-class PLC systems
- Installation Method: DIN rail mounted backplane
The Compact I/O series allows scalable expansion of input/output modules in a unified PLC system architecture.
4. Product Introduction
The 1769-OW16 uses mechanical relay contacts to switch electrical loads. Unlike transistor or triac outputs, it provides galvanic isolation through physical contacts, making it suitable for mixed-voltage industrial environments.
Each output channel operates as a normally open contact, allowing switching of both AC and DC circuits up to industrial load levels.
It is commonly used in systems requiring robust switching for motors, solenoids, and control circuits.
5. Technical Parameters
5.1 Electrical Performance
| Parameter | Value |
|---|---|
| Number of Channels | 16 (normally open) |
| Output Type | Relay contact (AC/DC switching) |
| Grouping | 2 groups × 8 points |
| Operating Voltage Range | 5–265 V AC / 5–125 V DC |
| Maximum Current per Point | 2.5 A |
| Maximum Current per Module | 20 A |
| Minimum Load Current | 10 mA @ 5 V DC |
| Contact Type | Mechanical relay |
| Switching Delay (ON) | ~10 ms |
| Switching Delay (OFF) | ~10 ms |
| Off-State Leakage | 0 mA |
| Contact Life | Mechanical wear dependent (millions of cycles typical) |
5.2 Electrical Isolation & Safety
| Parameter | Value |
|---|---|
| Isolation Voltage | 1836 V AC / 2596 V DC (tested) |
| Working Voltage | 150–265 V AC depending on insulation class |
| Isolation Type | Group-to-group + channel-to-bus isolation |
| Protection Type | Reinforced industrial insulation |
| Switching Method | Electromechanical relay contacts |
5.3 Power Consumption
| Parameter | Value |
|---|---|
| Backplane Current Draw @ 5.1V | ~205 mA |
| 24V Current Draw | ~180 mA |
| Heat Dissipation | ~4.75 W |
| Thermal Behavior | Higher than transistor modules due to coil drive |
5.4 Physical Dimensions & Weight
| Parameter | Value |
|---|---|
| Height | 118 mm |
| Width | 52.5 mm |
| Depth | 87 mm |
| Mounting Type | DIN rail / panel mount |
| Weight | 0.45 kg (approx. 0.99 lb) |
| Slot Width | 1.5 module width |
5.5 Wiring & Installation
| Parameter | Value |
|---|---|
| Wire Type | Copper conductor |
| Solid Wire Size | 22–14 AWG |
| Stranded Wire Size | 22–16 AWG |
| Terminal Type | Removable screw terminal block |
| Load Type Compatibility | AC inductive, DC resistive |
| Recommended Protection | Arc suppression for inductive loads |
6. Product Applications
The 1769-OW16 is used in industrial systems requiring flexible switching of different voltage levels.
Typical application areas:
- Industrial automation systems
- Motor control circuits
- Conveyor systems
- Packaging machines
- HVAC equipment control
- Pump and valve switching systems
- Alarm and safety systems
- Machine tool control panels
Typical controlled devices:
- Magnetic contactors
- Solenoid valves
- Small motors
- Industrial relays
- Signal lamps and alarms
7. Product Advantages
7.1 Universal Voltage Switching
Capable of switching both AC and DC loads in a wide voltage range.
7.2 Electrical Isolation
Relay contacts provide complete galvanic isolation between field devices and PLC system.
7.3 Load Flexibility
Suitable for inductive, resistive, and mixed industrial loads.
7.4 Simple Integration
Direct PLC backplane connection simplifies wiring and reduces external components.
7.5 High Reliability in Harsh Environments
Strong tolerance to electrical noise and voltage fluctuations.
7.6 Easy Maintenance
Faulty relay channels can often be diagnosed individually and replaced as modules.
8. Recommended Models (Same Series / Related Modules)
8.1 Same Series / Closely Related Modules
| Model | Description | Key Parameters |
|---|---|---|
| 1769-OV16 | 24V DC sinking output module | Solid-state switching, 16 channels |
| 1769-OB16 | 24V DC sourcing output module | Transistor output, high-speed switching |
| 1769-OG16 | TTL logic output module | 5V logic-level output, 16 channels |
| 1769-OF4CI | Analog current output module | 4-channel 4–20 mA precision output |
| 1769-OF8C | Analog current output module | 8-channel high-density analog output |
9. Recommended Models (Same Brand – Popular Modules)
| Model | Type | Key Parameters |
|---|---|---|
| 1769-L24ER | PLC Controller | Integrated CPU, Ethernet communication, modular expansion |
| 1769-L33ER | PLC Controller | High-performance processing, motion control support |
| 1769-PA4 | Power Supply Module | 24V DC input, system backplane distribution |
| 1769-IQ16 | Digital Input Module | 16-channel discrete input, fast response |
| 1769-OB32 | Digital Output Module | 32-channel transistor output, high-density control |
10. Summary
The 1769-OW16 is a robust relay output module designed for industrial automation systems requiring flexible AC/DC switching capability.
With 16 relay channels, strong isolation, and wide voltage compatibility, it is particularly suitable for mixed-load environments where reliability and electrical separation are essential.