Preferred
1756-OX8I
ControlLogix 8 Pt Digital Relay Module
Serial #:
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Lifecycle status:
Active
Product at a glance
Description
N.O./N.C. Isolated Relay Output 8 Pts (36 Pin)
Preferred
1756-OX8I
ControlLogix 8 Pt Digital Relay Module
Serial #:
This product has not been verified. Please {} to confirm authenticity.
register your product
Lifecycle status:
Active
Product at a glance
Description
N.O./N.C. Isolated Relay Output 8 Pts (36 Pin)
Product Details
Look for SER on the product label to find your product series. To find information specific to your product, scan the QR code on the product label.
A
Overview
Electrical & Connectivity
General Features
Power & Electrical Characteristics
Inputs & Outputs (I/O)
Compliance & Environment
Standards & Protection
Physical Characteristics
Mechanical
Construction
Technical Specifications
Component-level Specifications
Sustainability
Substance Disclosures
Drawings
Documents
Downloads
Certifications
Alternative Products
Technotes
| Unique Product Identifier |
1756-OX8I
|
|---|---|
| UPC |
612598171477
|
| Estimated Lead Time |
5 days
|
| Standard Warranty Duration |
1 year See details |
| Country of Origin |
Malaysia
|
| Isolation |
250 V continuous between outputs
|
|---|---|
| Number Of Channels |
8
|
| Bounce time, mean |
1.2 µs
|
|---|---|
| Contact current rating |
1A @ 5...30V DC, 0.5A @ 48V DC, 0.22A @ 125V DC, 1.5A @ 120V AC, 50/60 Hz, 0.75A @ 240V AC, 50/60 Hz
|
| Current draw |
100mA @ 5.1V, 100mA @ 24V
|
| Digital inputs configurable |
False
|
| Digital outputs configurable |
False
|
| Expected contact life |
300 kHz, resistive, 100 kHz, inductive
|
| Fusing |
Not protected. A fused IFM is recommended to help protect outputs
|
| Initial contact resistance, max |
100 mΩ @ 6V @ 1A
|
| Isolation voltage |
250V (continuous), basic insulation type, outputs-to-backplane, and output-to-output
|
| Module keying |
Electronic, software configurable
|
| Outputs |
8 N.O., 8 N.C. individually isolated (two points per group)
|
| Pilot duty |
C300, R150
|
| Power dissipation, max |
3.1 W @ 60 °C (140 °F)
|
| Redundancy |
False
|
| Scheduled outputs |
Synchronization within 16.7 s max, reference to the coordinated system time
|
| Short-circuit protection, outputs available |
False
|
| States in fault mode per point |
Hold last state, On or Off (Off is default)
|
| States in program mode per point |
Hold last state, On or Off (Off is default)
|
| Suitable for safety functions |
False
|
| Switching frequency, max |
1 ops/3 s (0.3 Hz at rated load)
|
| Thermal dissipation |
10.57 btu/h
|
| Total backplane power |
2.9 W
|
| Type of digital output |
Relay
|
| Type of electric connection |
Screw connection
|
| Type of voltage (input voltage) |
DC
|
| Voltage type of supply voltage |
DC
|
| Wire category |
Wire category: 1
|
I/O Specifications
| Operating voltage |
5...125V DC @ 10...240V AC
|
|---|
Output Signals
| Load current per point, min |
10 mA
|
|---|---|
| Off-state leakage current per point, max |
0 mA
|
| Output delay time |
OFF to ON: 13 ms maximum, ON to OFF: 13 ms maximum
|
| Conducted RF immunity |
10V rms with 1 kHz sine-wave 80% AM from 150 kHz...80 MHz
|
|---|---|
| EFT/B immunity |
±4kV @ 5kHz on signal ports
|
| ESD immunity |
6 kV contact discharges, 8 kV air discharges
|
| Emissions |
IEC 61000-6-4
|
| Nonoperating temperature |
-40 °C
|
| North American temperature code |
T4A
|
| Operating temperature |
0 to 60 °C
|
| Oscillatory surge withstand |
IEEE C37.90.1: 3kV
|
| Radiated RF immunity |
10 V/m with 1 kHz sine-wave 80% AM from 80...2000 MHz, 10 V/m with 200 Hz 50% Pulse 100% AM @ 900 MHz, 10 V/m with 200 Hz 50% Pulse 100% AM @ 1890 MHz, 3 V/m with 1 kHz sine-wave 80% AM from 2000...2700 MHz
|
| Relative humidity |
5...95% noncondensing
|
| Surge transient immunity |
±1 kV line-line (DM) and ±2 kV line-earth (CM) on signal ports
|
| Surrounding air temperature, max |
60 °C
|
Mechanical
| RTB keying |
User-defined mechanical
|
|---|---|
| Shock |
Operating: 30 G, Non operating: 50 G
|
| Slot width |
1
|
| Vibration |
2 G @ 10...500 Hz
|
Construction
| Enclosure type |
None (open-style)
|
|---|
Other
| Device does not consume power |
No
|
|---|---|
| Pwr diss at full load 100% (W) |
3.1
|
| Pwr diss modes not applicable |
No
|
| Review of pwr diss data |
NOT REVIEWED
|
Component Regulatory Information
| EU Importer Address |
Rockwell Automation N.V |
|---|---|
| EU Authorized Representative Address |
Rockwell Automation N.V |
| Environmental Compliance | |
|---|---|
| SVHC Information |
| Drawings | |
|---|---|
| 3-Dimensional STEP model (STP) | Download (ZIP) |
| Product Drawing | Drawing (DXF) |
| Product Drawing | Drawing (DWG) |
| Drawings |
|---|
| 3-Dimensional STEP model (STP) Download (ZIP) |
| Product Drawing Drawing (DXF) |
| Product Drawing Drawing (DWG) |
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| General | Publication |
|---|---|
| Product Profile | -- |
| Selection Guide | 1756-SG001 |
| Technical Detail | -- |
| Product Cutsheet | -- |
| Technical Data | Publication |
|---|---|
| 1756-td002_-en-e | 1756-TD002 |
Looking for more documentation?
Find curated technical documentation for this product in the Technical Documentation Center, or search our full Literature Library.
Visit the Technical Documentation Center
Search the Literature Library
Available Downloads
- Firmware for 1756-OX8I v3.003
- AOP - Add On Profiles for 1756 Discrete I/O v40.12.22
- Safety
- CE
- Australian RCM
- Eurasion Economic Community
- American Bureau of Shippin
- UNITED KINGDOM SAFETY CERTIFICATE
This product was certified with the above certifications as of 2026-08-11. Products sold before or after this date might carry different certifications. Please review the product label to check for the certifications your specific product carries.
Looking for certification documents?
Explore certifications for this product and more in our comprehensive Literature Library.
Regulatory Information
| EU Importer Address |
Rockwell Automation N.V |
|---|---|
| EU Authorized Representative Address |
Rockwell Automation N.V |
Component Regulatory Information
| EU Importer Address |
Rockwell Automation N.V |
|---|---|
| EU Authorized Representative Address |
Rockwell Automation N.V |
Items Per Page:
| Technotes |
|---|
Looking for more Technotes?
Find questions and answers from Rockwell Automation technical experts for this product in our Knowledgebase.
Search Knowledgebase
Overview
| Unique Product Identifier |
1756-OX8I
|
|---|---|
| UPC |
612598171477
|
| Estimated Lead Time |
5 days
|
| Standard Warranty Duration |
1 year See details |
| Country of Origin |
Malaysia
|
Electrical & Connectivity
| Isolation |
250 V continuous between outputs
|
|---|---|
| Number Of Channels |
8
|
| Bounce time, mean |
1.2 µs
|
|---|---|
| Contact current rating |
1A @ 5...30V DC, 0.5A @ 48V DC, 0.22A @ 125V DC, 1.5A @ 120V AC, 50/60 Hz, 0.75A @ 240V AC, 50/60 Hz
|
| Current draw |
100mA @ 5.1V, 100mA @ 24V
|
| Digital inputs configurable |
False
|
| Digital outputs configurable |
False
|
| Expected contact life |
300 kHz, resistive, 100 kHz, inductive
|
| Fusing |
Not protected. A fused IFM is recommended to help protect outputs
|
| Initial contact resistance, max |
100 mΩ @ 6V @ 1A
|
| Isolation voltage |
250V (continuous), basic insulation type, outputs-to-backplane, and output-to-output
|
| Module keying |
Electronic, software configurable
|
| Outputs |
8 N.O., 8 N.C. individually isolated (two points per group)
|
| Pilot duty |
C300, R150
|
| Power dissipation, max |
3.1 W @ 60 °C (140 °F)
|
| Redundancy |
False
|
| Scheduled outputs |
Synchronization within 16.7 s max, reference to the coordinated system time
|
| Short-circuit protection, outputs available |
False
|
| States in fault mode per point |
Hold last state, On or Off (Off is default)
|
| States in program mode per point |
Hold last state, On or Off (Off is default)
|
| Suitable for safety functions |
False
|
| Switching frequency, max |
1 ops/3 s (0.3 Hz at rated load)
|
| Thermal dissipation |
10.57 btu/h
|
| Total backplane power |
2.9 W
|
| Type of digital output |
Relay
|
| Type of electric connection |
Screw connection
|
| Type of voltage (input voltage) |
DC
|
| Voltage type of supply voltage |
DC
|
| Wire category |
Wire category: 1
|
I/O Specifications
| Operating voltage |
5...125V DC @ 10...240V AC
|
|---|
Output Signals
| Load current per point, min |
10 mA
|
|---|---|
| Off-state leakage current per point, max |
0 mA
|
| Output delay time |
OFF to ON: 13 ms maximum, ON to OFF: 13 ms maximum
|
Compliance & Environment
| Conducted RF immunity |
10V rms with 1 kHz sine-wave 80% AM from 150 kHz...80 MHz
|
|---|---|
| EFT/B immunity |
±4kV @ 5kHz on signal ports
|
| ESD immunity |
6 kV contact discharges, 8 kV air discharges
|
| Emissions |
IEC 61000-6-4
|
| Nonoperating temperature |
-40 °C
|
| North American temperature code |
T4A
|
| Operating temperature |
0 to 60 °C
|
| Oscillatory surge withstand |
IEEE C37.90.1: 3kV
|
| Radiated RF immunity |
10 V/m with 1 kHz sine-wave 80% AM from 80...2000 MHz, 10 V/m with 200 Hz 50% Pulse 100% AM @ 900 MHz, 10 V/m with 200 Hz 50% Pulse 100% AM @ 1890 MHz, 3 V/m with 1 kHz sine-wave 80% AM from 2000...2700 MHz
|
| Relative humidity |
5...95% noncondensing
|
| Surge transient immunity |
±1 kV line-line (DM) and ±2 kV line-earth (CM) on signal ports
|
| Surrounding air temperature, max |
60 °C
|
Physical Characteristics
Mechanical
| RTB keying |
User-defined mechanical
|
|---|---|
| Shock |
Operating: 30 G, Non operating: 50 G
|
| Slot width |
1
|
| Vibration |
2 G @ 10...500 Hz
|
Construction
| Enclosure type |
None (open-style)
|
|---|
Technical Specifications
Other
| Device does not consume power |
No
|
|---|---|
| Pwr diss at full load 100% (W) |
3.1
|
| Pwr diss modes not applicable |
No
|
| Review of pwr diss data |
NOT REVIEWED
|
Component Regulatory Information
| EU Importer Address |
Rockwell Automation N.V |
|---|---|
| EU Authorized Representative Address |
Rockwell Automation N.V |
Drawings
| Drawings | |
|---|---|
| 3-Dimensional STEP model (STP) | Download (ZIP) |
| Product Drawing | Drawing (DXF) |
| Product Drawing | Drawing (DWG) |
| Drawings |
|---|
| 3-Dimensional STEP model (STP) Download (ZIP) |
| Product Drawing Drawing (DXF) |
| Product Drawing Drawing (DWG) |
Sign in to your Rockwell Automation account to view and download technical drawings.
Sign In
Documents
|
Product Profile
General
-- |
|
Selection Guide
General
1756-SG001 |
|
Technical Detail
General
-- |
|
Product Cutsheet
General
-- |
|
1756-td002_-en-e
Technical Data
1756-TD002 |
| General | Publication |
|---|---|
| Product Profile | -- |
| Selection Guide | 1756-SG001 |
| Technical Detail | -- |
| Product Cutsheet | -- |
| Technical Data | Publication |
| 1756-td002_-en-e | 1756-TD002 |
Looking for more documentation?
Find curated technical documentation for this product in the Technical Documentation Center, or search our full Literature Library.
Visit the Technical Documentation Center
Search the Literature Library
Downloads
Available Downloads
- Firmware for 1756-OX8I v3.003
- AOP - Add On Profiles for 1756 Discrete I/O v40.12.22
Certifications
- Safety
- CE
- Australian RCM
- Eurasion Economic Community
- American Bureau of Shippin
- UNITED KINGDOM SAFETY CERTIFICATE
This product was certified with the above certifications as of 2026-08-11. Products sold before or after this date might carry different certifications. Please review the product label to check for the certifications your specific product carries.
Looking for certification documents?
Explore certifications for this product and more in our comprehensive Literature Library.
Regulatory Information
| EU Importer Address |
Rockwell Automation N.V |
|---|---|
| EU Authorized Representative Address |
Rockwell Automation N.V |
Component Regulatory Information
| EU Importer Address |
Rockwell Automation N.V |
|---|---|
| EU Authorized Representative Address |
Rockwell Automation N.V |
Alternative Products
Items Per Page:
Technotes
| Technotes |
|---|
Looking for more Technotes?
Find questions and answers from Rockwell Automation technical experts for this product in our Knowledgebase.
Search Knowledgebase
Multiple countries of origin based on manufacturing location
ControlLogix 8 Pt Digital Relay Module
1756-OX8I
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