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1794-OB8 | Allen-Bradley Flex 8-Point Digital Output Module
- Regular price
- $193.80
- Sale price
- $193.80
- Regular price
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Product Description P/N: 1794-OB8
Description
The Allen-Bradley 1794-OB8 is an eight-point DC digital output module designed for use in FLEX I/O distributed control systems. It provides 24V DC sourcing outputs for driving solenoids, relays, indicators, and other field devices. Compact, modular, and DIN-rail mountable, the 1794-OB8 is ideal for machine automation, process control, and in-cabinet distributed I/O applications.
Technical Specifications
| Condition | New/Never Used Surplus |
| Brand | Allen-Bradley |
| Category | Industrial Automation |
| Part Number | 1794-OB8 |
| Subcategory | Digital Output Modules |
| Product Type | FLEX I/O Digital DC Output Module |
| Outputs | 8 sourcing digital outputs |
| Nominal Voltage | 24V DC |
| Voltage Range | 10–31.2V DC |
| On-State Current (max) | 500 mA per channel |
| Output Current (max module) | 4 A |
| On-State Voltage Drop (max) | 0.5V DC |
| Off-State Leakage (max) | 0.5 mA |
| Isolation Voltage | 50V continuous |
| Output Delay | 0.5 ms ON / 1 ms OFF |
| FlexBus Current | 60 mA @ 5V DC |
| Power Dissipation | 3.3 W max |
| Thermal Dissipation | 11.2 BTU/hr max |
| Mounting Type | DIN rail / panel (via base) |
| Compatible Bases | 1794-TB3, 1794-TB3S, 1794-TBKD |
| Standards | CE, UL, cUL, C-TICK, GOST, KC, Marine |
| Enclosure | Open-style (IP20) |
| Operating Temperature | 0–55 °C (32–131 °F) |
| Applications | In-cabinet distributed I/O |
| Response Time | 1 ms |
| Weight | 0.2 lb |
Information About 1794-OB8
The 1794-OB8 is part of the Allen-Bradley FLEX I/O family, designed for modular and scalable distributed I/O systems. It provides 8 DC sourcing outputs with an operating range of 10–31.2V DC and supports an external power supply with up to 5% AC ripple. The module ensures fast switching performance with a maximum output delay time of 0.5 ms (off-to-on) and 1 ms (on-to-off). Compatible terminal bases include 1794-TB3, 1794-TB3S, and 1794-TBKD, which allow quick installation and wiring. The design supports RIUP (Removal and Insertion Under Power), minimizing downtime by enabling module replacement without shutting down the system. The 1794-OB8 integrates into control architectures via ControlNet, DeviceNet, EtherNet/IP, or Universal Remote I/O adapters, ensuring flexible communication. It also includes 16 yellow LED indicators for clear output channel status monitoring. With operating conditions of 0–55 °C and 5–95% non-condensing humidity, plus extended XT versions rated -20 to 70 °C, the module is suitable for both standard and harsh industrial environments.
Key Features:
- Design: Compact FLEX I/O module with 8 DC sourcing output channels.
- Voltage Range: Operates at 10–31.2V DC with nominal 24V output.
- Performance: Fast switching with 0.5 ms (ON) and 1 ms (OFF) delay times.
- Connectivity: Compatible with terminal bases 1794-TB3, 1794-TB3S, and 1794-TBKD.
- Communication: Supports integration via ControlNet, DeviceNet, EtherNet/IP, and Universal Remote I/O.
- Ease of Maintenance: RIUP capability allows hot-swapping without shutting down the system.
- Diagnostics: Equipped with 16 yellow LED indicators for per-channel output status.
- Durability: Standard operating range 0–55 °C, with XT versions rated for -20–70 °C.
The 1794-OB8 delivers flexible, reliable, and high-performance digital output control for industrial automation systems.
Manufacturer information
Allen-Bradley, a brand of Rockwell Automation, specializes in manufacturing industrial automation equipment. The product range includes programmable logic controllers (PLCs), motion control systems, safety devices, motor control equipment, automation software, and HMI panels. Allen-Bradley products are known for their reliability and integration with other systems.
Description
The Allen-Bradley 1794-OB8 is an eight-point DC digital output module designed for use in FLEX I/O distributed control systems. It provides 24V DC sourcing outputs for driving solenoids, relays, indicators, and other field devices. Compact, modular, and DIN-rail mountable, the 1794-OB8 is ideal for machine automation, process control, and in-cabinet distributed I/O applications.
Technical Specifications
| Condition | New/Never Used Surplus |
| Brand | Allen-Bradley |
| Category | Industrial Automation |
| Part Number | 1794-OB8 |
| Subcategory | Digital Output Modules |
| Product Type | FLEX I/O Digital DC Output Module |
| Outputs | 8 sourcing digital outputs |
| Nominal Voltage | 24V DC |
| Voltage Range | 10–31.2V DC |
| On-State Current (max) | 500 mA per channel |
| Output Current (max module) | 4 A |
| On-State Voltage Drop (max) | 0.5V DC |
| Off-State Leakage (max) | 0.5 mA |
| Isolation Voltage | 50V continuous |
| Output Delay | 0.5 ms ON / 1 ms OFF |
| FlexBus Current | 60 mA @ 5V DC |
| Power Dissipation | 3.3 W max |
| Thermal Dissipation | 11.2 BTU/hr max |
| Mounting Type | DIN rail / panel (via base) |
| Compatible Bases | 1794-TB3, 1794-TB3S, 1794-TBKD |
| Standards | CE, UL, cUL, C-TICK, GOST, KC, Marine |
| Enclosure | Open-style (IP20) |
| Operating Temperature | 0–55 °C (32–131 °F) |
| Applications | In-cabinet distributed I/O |
| Response Time | 1 ms |
| Weight | 0.2 lb |
Information About 1794-OB8
The 1794-OB8 is part of the Allen-Bradley FLEX I/O family, designed for modular and scalable distributed I/O systems. It provides 8 DC sourcing outputs with an operating range of 10–31.2V DC and supports an external power supply with up to 5% AC ripple. The module ensures fast switching performance with a maximum output delay time of 0.5 ms (off-to-on) and 1 ms (on-to-off). Compatible terminal bases include 1794-TB3, 1794-TB3S, and 1794-TBKD, which allow quick installation and wiring. The design supports RIUP (Removal and Insertion Under Power), minimizing downtime by enabling module replacement without shutting down the system. The 1794-OB8 integrates into control architectures via ControlNet, DeviceNet, EtherNet/IP, or Universal Remote I/O adapters, ensuring flexible communication. It also includes 16 yellow LED indicators for clear output channel status monitoring. With operating conditions of 0–55 °C and 5–95% non-condensing humidity, plus extended XT versions rated -20 to 70 °C, the module is suitable for both standard and harsh industrial environments.
Key Features:
- Design: Compact FLEX I/O module with 8 DC sourcing output channels.
- Voltage Range: Operates at 10–31.2V DC with nominal 24V output.
- Performance: Fast switching with 0.5 ms (ON) and 1 ms (OFF) delay times.
- Connectivity: Compatible with terminal bases 1794-TB3, 1794-TB3S, and 1794-TBKD.
- Communication: Supports integration via ControlNet, DeviceNet, EtherNet/IP, and Universal Remote I/O.
- Ease of Maintenance: RIUP capability allows hot-swapping without shutting down the system.
- Diagnostics: Equipped with 16 yellow LED indicators for per-channel output status.
- Durability: Standard operating range 0–55 °C, with XT versions rated for -20–70 °C.
The 1794-OB8 delivers flexible, reliable, and high-performance digital output control for industrial automation systems.
Manufacturer information
Allen-Bradley, a brand of Rockwell Automation, specializes in manufacturing industrial automation equipment. The product range includes programmable logic controllers (PLCs), motion control systems, safety devices, motor control equipment, automation software, and HMI panels. Allen-Bradley products are known for their reliability and integration with other systems.
