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Catalog #: 1756-ox8i
ControlLogix 8 Pt Digital Relay Module
| Isolation | 250 V continuous between outputs |
|---|---|
| Number Of Channels | 8 None |
| Suitable for safety functions | False |
|---|---|
| Digital inputs configurable | False |
| Digital outputs configurable | False |
| Voltage type of supply voltage | DC |
| Type of voltage (input voltage) | DC |
| Type of digital output | Relay |
| Type of electric connection | Screw connection |
| Bounce time, mean | 1.2 µs |
| Total backplane power | 2.9 W |
| Thermal dissipation | 10.57 btu/h |
| Current draw | 100mA @ 5.1V, 100mA @ 24V |
| Expected contact life | 300 kHz, resistive, 100 kHz, inductive |
| Module keying | Electronic, software configurable |
| Outputs | 8 N.O., 8 N.C. individually isolated (two points per group) |
| Scheduled outputs | Synchronization within 16.7 s max, reference to the coordinated system time |
| Power dissipation, max | 3.1 W @ 60 °C (140 °F) |
| 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 |
| Isolation voltage | 250V (continuous), basic insulation type, outputs-to-backplane, and output-to-output |
| Wire category | Wire category: 1 |
| Fusing | Not protected. A fused IFM is recommended to help protect outputs |
| Redundancy | False |
| Short-circuit protection, outputs available | False |
| Pilot duty | C300, R150 |
| Initial contact resistance, max | 100 mΩ @ 6V @ 1A |
| Switching frequency, max | 1 ops/3 s (0.3 Hz at rated load) |
| 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) |
| Slot width | 1 None |
|---|---|
| RTB keying | User-defined mechanical |
| Shock | Operating: 30 G, Non operating: 50 G |
| Vibration | 2 G @ 10...500 Hz |
| Surrounding air temperature, max | 60 °C |
|---|---|
| North American temperature code | T4A |
| Emissions | IEC 61000-6-4 |
| ESD immunity | 6 kV contact discharges, 8 kV air discharges |
| Relative humidity | 5...95% noncondensing |
| 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 |
| Operating temperature | 0 to 60 °C |
| Surge transient immunity | ±1 kV line-line (DM) and ±2 kV line-earth (CM) on signal ports |
| 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 |
| Nonoperating temperature | -40 °C |
| Oscillatory surge withstand | IEEE C37.90.1: 3kV |
| Off-state leakage current per point, max | 0 mA |
|---|---|
| Load current per point, min | 10 mA |
| Output delay time | OFF to ON: 13 ms maximum, ON to OFF: 13 ms maximum |
| Operating voltage | 5...125V DC @ 10...240V AC |
|---|
| Enclosure type | None (open-style) |
|---|
Sales Info
| Repairable | REPAIRABLE |
| Preferred Availability | true |
| Quick Turnaround | false |
| Dimension Height | 5.41 |
| Lead Time | 5 |
| Dimension Width | 18.009 |
| Dimension Length | 22.2 |
| Stock Status | STOCKED |
| Weight | 0.363 |
| Weight Unit | KG |
| Dimension Unit | CM |
Available Downloads
- EDS files for 1756-OX8I
- Firmware for 1756-OX8I v3.003
- AOP - Add On Profiles for 1756 Discrete I/O v40.12.22
| Drawings | |
|---|---|
| 3-Dimensional STEP model (STP) | Download (ZIP) |
| Product Drawing | Drawing (DWG) |
| Product Drawing | Drawing (DXF) |
| Drawings |
|---|
| 3-Dimensional STEP model (STP) Download (ZIP) |
| Product Drawing Drawing (DWG) |
| Product Drawing Drawing (DXF) |
| Type | Resource | Publication |
|---|---|---|
| General | Selection Guide | 1756-SG001 |
| General | Product Profile | -- |
| General | Product Cutsheet | -- |
| General | Technical Detail | -- |
| Technical Data | 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
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- Safety
- CE
- Australian RCM
This product was certified with the above certifications as of 2024-11-18. 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.
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Technical Specifications
| Isolation | 250 V continuous between outputs |
|---|---|
| Number Of Channels | 8 None |
| Suitable for safety functions | False |
|---|---|
| Digital inputs configurable | False |
| Digital outputs configurable | False |
| Voltage type of supply voltage | DC |
| Type of voltage (input voltage) | DC |
| Type of digital output | Relay |
| Type of electric connection | Screw connection |
| Bounce time, mean | 1.2 µs |
| Total backplane power | 2.9 W |
| Thermal dissipation | 10.57 btu/h |
| Current draw | 100mA @ 5.1V, 100mA @ 24V |
| Expected contact life | 300 kHz, resistive, 100 kHz, inductive |
| Module keying | Electronic, software configurable |
| Outputs | 8 N.O., 8 N.C. individually isolated (two points per group) |
| Scheduled outputs | Synchronization within 16.7 s max, reference to the coordinated system time |
| Power dissipation, max | 3.1 W @ 60 °C (140 °F) |
| 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 |
| Isolation voltage | 250V (continuous), basic insulation type, outputs-to-backplane, and output-to-output |
| Wire category | Wire category: 1 |
| Fusing | Not protected. A fused IFM is recommended to help protect outputs |
| Redundancy | False |
| Short-circuit protection, outputs available | False |
| Pilot duty | C300, R150 |
| Initial contact resistance, max | 100 mΩ @ 6V @ 1A |
| Switching frequency, max | 1 ops/3 s (0.3 Hz at rated load) |
| 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) |
| Slot width | 1 None |
|---|---|
| RTB keying | User-defined mechanical |
| Shock | Operating: 30 G, Non operating: 50 G |
| Vibration | 2 G @ 10...500 Hz |
| Surrounding air temperature, max | 60 °C |
|---|---|
| North American temperature code | T4A |
| Emissions | IEC 61000-6-4 |
| ESD immunity | 6 kV contact discharges, 8 kV air discharges |
| Relative humidity | 5...95% noncondensing |
| 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 |
| Operating temperature | 0 to 60 °C |
| Surge transient immunity | ±1 kV line-line (DM) and ±2 kV line-earth (CM) on signal ports |
| 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 |
| Nonoperating temperature | -40 °C |
| Oscillatory surge withstand | IEEE C37.90.1: 3kV |
| Off-state leakage current per point, max | 0 mA |
|---|---|
| Load current per point, min | 10 mA |
| Output delay time | OFF to ON: 13 ms maximum, ON to OFF: 13 ms maximum |
| Operating voltage | 5...125V DC @ 10...240V AC |
|---|
| Enclosure type | None (open-style) |
|---|
Sales Info
| Repairable | REPAIRABLE |
| Preferred Availability | true |
| Quick Turnaround | false |
| Dimension Height | 5.41 |
| Lead Time | 5 |
| Dimension Width | 18.009 |
| Dimension Length | 22.2 |
| Stock Status | STOCKED |
| Weight | 0.363 |
| Weight Unit | KG |
| Dimension Unit | CM |
Drawings
| Drawings | |
|---|---|
| 3-Dimensional STEP model (STP) | Download (ZIP) |
| Product Drawing | Drawing (DWG) |
| Product Drawing | Drawing (DXF) |
| Drawings |
|---|
| 3-Dimensional STEP model (STP) Download (ZIP) |
| Product Drawing Drawing (DWG) |
| Product Drawing Drawing (DXF) |
Documents
|
Selection Guide
General
1756-SG001 |
|
Product Profile
General
-- |
|
Product Cutsheet
General
-- |
|
Technical Detail
General
-- |
|
1756-td002_-en-e
Technical Data
1756-TD002 |
| Type | Resource | Publication |
|---|---|---|
| General | Selection Guide | 1756-SG001 |
| General | Product Profile | -- |
| General | Product Cutsheet | -- |
| General | Technical Detail | -- |
| Technical Data | 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
- EDS files for 1756-OX8I
- Firmware for 1756-OX8I v3.003
- AOP - Add On Profiles for 1756 Discrete I/O v40.12.22
Certifications
- Safety
- CE
- Australian RCM
This product was certified with the above certifications as of 2024-11-18. 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.
Technotes
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Looking for more Technotes?
Find questions and answers from Rockwell Automation technical experts for this product in our Knowledgebase.
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