ProductPRODUCT
Featured products
Contact Us
- Allen Bradley
- 1756-OX8I
- ControlLogix ControlNet Communication Module
- USA
- 14.5 × 5.6 × 14.0 cm
- 0.4kg
- Xiamen, China
- New & In Stock
- T/T, PayPal, Western Union
- 1 Year
- 1-3 Working Days
- DHL, UPS, TNT, FedEx and EMS.
- 24-Hour Service
- COO
- 9
Our advantage
Global Logistics
We have a 10-year logistics and express cooperation agreement, so our products can be shipped to any place in the world.
Brand new and original
Our products are imported in bulk from the place of origin. Because of the cooperative relationship, our products are all original and 100% new.
24-hour service
We provide 7*24 hours service to our customers. We will be there whenever you need us.
Price advantage
All our products are priced very favorably because we have our own warehouse and supply.
| Company Information | |||
| [email protected] | |||
| Mobile | +8615980777398 | ||
| +8615980777398 | |||
| 15980777398 |
1756-OX8I Detailed Product Overview
Product Introduction
The 1756-OX8I is an 8-point isolated relay output module designed for industrial automation systems that require high-voltage switching capability, strong electrical isolation, and flexible AC/DC load control. It belongs to the ControlLogix modular automation platform and is widely used in machinery control, process automation, and electrical distribution systems.
This module provides 8 individually isolated relay output channels with both normally open (NO) and normally closed (NC) contact configurations. Each channel can independently switch AC or DC loads, making it suitable for complex industrial switching requirements.
The module is installed in a ControlLogix chassis and communicates through the backplane with PLC processors, enabling seamless integration into automated control systems.
Brand Information
| Item | Description |
|---|---|
| Brand | Industrial Automation Brand |
| Product Platform | ControlLogix |
| Product Type | Isolated Relay Output Module |
| Main Function | AC/DC Load Switching |
| Installation Method | Chassis Mount |
| Output Type | Relay Contact Output (NO/NC) |
| Application Category | Industrial Automation |
| System Architecture | Modular PLC System |
Product Series Introduction
ControlLogix Series
The ControlLogix system is a high-performance modular automation platform designed for complex industrial control applications requiring scalability, reliability, and high-speed communication.
Core capabilities include:
- PLC logic processing
- Digital and analog I/O control
- Motion and process automation
- Industrial network communication
- System diagnostics and monitoring
Key characteristics:
- High-speed backplane architecture
- Modular system expansion
- Strong industrial reliability
- Flexible configuration capability
- Long lifecycle stability
- High integration efficiency
The 1756-OX8I belongs to the isolated relay output family and is designed for applications requiring mixed AC/DC switching with reinforced electrical separation between channels.
It is widely used in:
- Industrial machinery systems
- Packaging equipment
- Conveyor systems
- Process automation
- HVAC control systems
- Electrical switching panels
1756-OX8I Technical Specifications
| Parameter | Specification |
|---|---|
| Model | 1756-OX8I |
| Product Type | Isolated Relay Output Module |
| Series | ControlLogix |
| Number of Channels | 8 Channels |
| Output Type | Relay (NO / NC contacts) |
| Contact Form | Form A / Form B |
| Operating Voltage Range | 5–125V DC / 10–240V AC |
| Contact Current Rating | up to 2A per point (resistive load) |
| Pilot Duty Rating | C300 / R150 |
| Isolation Voltage | 250V continuous (channel-to-backplane & channel-to-channel) |
| Contact Resistance | ≤ 100 mΩ |
| Off-State Leakage Current | 0 mA |
| Switching Time | ON/OFF ≈ 13 ms max |
| Bounce Time | ~1.2 ms |
| Switching Frequency | 0.3 Hz (rated load) |
| Backplane Current @ 5.1V DC | ~100 mA |
| Power Dissipation | ~3.1 W |
| Thermal Dissipation | ~10.6 BTU/hr |
| Expected Mechanical Life | >10 million operations |
| Expected Electrical Life | ~300,000 operations (load dependent) |
| Operating Temperature | 0°C to 60°C |
| Storage Temperature | -40°C to 85°C |
| Humidity Range | 5%–95% non-condensing |
| Wiring Method | Screw / removable terminal block |
| Status Indicator | LED per channel |
| Dimensions | 14.5 × 5.6 × 14.0 cm |
| Weight kg（ ） | 0.40 kg |
Product Features
1. High-Voltage Relay Switching Capability
Supports a wide voltage range from low DC control signals to high AC industrial loads.
2. Fully Isolated Output Channels
Each channel is electrically isolated to reduce interference and improve safety.
3. NO/NC Contact Flexibility
Supports both normally open and normally closed configurations for flexible circuit design.
4. Strong Industrial Load Compatibility
Suitable for inductive, resistive, and mixed load types.
5. Fast Response Relay Operation
Provides fast switching response suitable for real-time control systems.
Product Advantages
Strong Electrical Isolation
Protects control systems from high-voltage field circuits.
Flexible AC/DC Switching
One module supports multiple voltage environments.
High Reliability Design
Mechanical relay structure ensures stable long-term operation.
Easy System Integration
Fully compatible with ControlLogix architecture.
Simple Maintenance
LED indicators and modular structure simplify diagnostics.
Industrial Durability
Designed for harsh factory environments with electrical noise.
Main Applications
Industrial Automation Systems
Used for general-purpose machine switching and control.
Manufacturing Equipment
Controls actuators, motors, and auxiliary devices.
Packaging Machinery
Used in conveyor control and packaging line switching.
HVAC Systems
Controls fans, compressors, and dampers.
Process Control Systems
Used in auxiliary switching circuits in industrial plants.
Electrical Control Panels
Provides relay switching in industrial cabinets.
Industrial Performance Summary
| Capability | Benefit |
|---|---|
| 8 Relay Channels | Flexible switching control |
| AC/DC Compatibility | Wide application range |
| Strong Isolation | High safety performance |
| NO/NC Contacts | Circuit design flexibility |
| LED Indicators | Easy troubleshooting |
| High Durability | Long service life |
| Modular Design | Easy expansion |
| Industrial Grade | Stable operation |
Recommended Related Models (Same Series / Similar Function)
| Model | Type | Channels | Output Type | Dimensions | Weight kg（ ） | Feature |
|---|---|---|---|---|---|---|
| 1756-OX8I | Relay output | 8 | NO/NC relay | 14.5 × 5.6 × 14.0 cm | 0.40 kg | Base model |
| 1756-OW16I | Relay output | 16 | Dry contact | 14.5 × 5.6 × 14.0 cm | 0.45 kg | High density |
| 1756-OB16E | DC output | 16 | Electronic fused | 14.5 × 5.6 × 14.0 cm | 0.38 kg | Protected output |
| 1756-OB16 | DC output | 16 | Transistor | 14.5 × 5.6 × 14.0 cm | 0.36 kg | Standard switching |
| 1756-OB32 | High-density output | 32 | DC output | 11.1 × 3.8 × 30.0 cm | 0.26 kg | Large capacity |
Recommended Popular Models (Same Platform)
| Model | Type | Function | Dimensions | Weight kg（ ） | Advantage |
|---|---|---|---|---|---|
| 1756-L81E | PLC CPU | Control processing | 14.5 × 5.6 × 14.0 cm | 0.45 kg | High performance |
| 1756-EN2TR | Ethernet module | Communication | 14.5 × 5.6 × 14.0 cm | 0.29 kg | Stable networking |
| 1756-IB16 | Input module | Signal input | 14.5 × 5.6 × 14.0 cm | 0.27 kg | Reliable sensing |
| 1756-OF8 | Analog output | Signal output | 11.1 × 3.8 × 30.0 cm | 2.0 kg | Precision control |
| 1756-PA75 | Power module | Power supply | 14.5 × 5.6 × 14.0 cm | 0.90 kg | System stability |
Installation Notes
- Install in a ventilated control cabinet
- Ensure proper grounding
- Separate high-voltage wiring from signal wiring
- Avoid overload beyond rated current
- Maintain proper heat dissipation
Maintenance Notes
| Item | Recommendation |
|---|---|
| Relay inspection | Check contact wear |
| Terminal tightening | Regular maintenance |
| Dust cleaning | Periodic cleaning |
| Output testing | Verify switching behavior |
| LED monitoring | Check channel status |
| Environment control | Avoid humidity extremes |
Overall Summary
The 1756-OX8I is a robust 8-channel isolated relay output module designed for industrial automation systems requiring flexible AC/DC switching, strong electrical isolation, and reliable multi-channel control. Its NO/NC relay structure and wide voltage compatibility make it suitable for diverse industrial applications where safety, flexibility, and durability are essential.