.svg?v=180920048278408794651776809924){kind=small}
1771-OB | Allen-Bradley PLC-5 Digital DC Output Driver Module, 8-Point
- Regular price
- $527.00
- Sale price
- $527.00
- Regular price
-
Couldn't load pickup availability
Product Description P/N: 1771-OB
Description
The Allen-Bradley 1771-OB is an 8-channel digital DC output module designed for use with PLC-5 chassis. It provides sourcing-type outputs operating from 10 to 27 VDC and supports continuous current ratings suitable for driving industrial loads. The 1771-OB is built for reliable switching performance in standard automation environments with defined power, temperature, and humidity limits.
Technical Specifications
| Condition | New/Never Used Surplus |
| Brand | Allen-Bradley |
| Category | Digital Output Module |
| Part Number | 1771-OB |
| Subcategory | PLC-5 I/O Module |
| Manufacturer | Rockwell Automation |
| Module Type | Digital DC Output Module |
| Number of Outputs | 8 |
| Voltage Category | 10–60 VDC, Source |
| DC Operating Voltage | 10–27 VDC |
| Backplane Current | 165 mA |
| Max Continuous Current per Output | 1.5 A |
| Max Continuous Current per Module | 8 A |
| Max Surge Current | 4 A for 1 ms (repeatable every 1 s) |
| Data Format | BDC or Natural Binary |
| Typical AC Signal Delay (Off) | 45 ± 15 ms |
| Typical DC Signal Delay (Off) | 50 ms |
| On-State Voltage Drop | 2 VDC |
| Off-State Leakage Current | 1 mA per output |
| Wiring Arms | 1771-WA, 1771-WH |
| Coating | Conformal coat |
| Mounting | Rack mount (1771 chassis) |
| Operating Temperature | 0 to 60 °C |
| Storage Temperature | −40 to 85 °C |
| Relative Humidity | 5–95% non-condensing |
Information About 1771-OB
The 1771-OB is part of the Allen-Bradley PLC-5 I/O family and is constructed as a rack-mounted module that interfaces through the 1771 backplane. It employs a conformal-coated design to support operation in demanding industrial atmospheres while maintaining electrical stability. The module integrates seamlessly with PLC-5 controllers and uses wiring arms such as the 1771-WA or 1771-WH for field termination. Typical applications include driving solenoids, indicators, relays, and other DC loads requiring sourcing outputs with predictable on/off response characteristics.
Key Features:
- Eight Sourcing Outputs: Supports 8 independent DC output channels for control of field devices.
- 10–27 VDC Operating Range: Suitable for standard industrial DC control voltages.
- Per-Output Current Capacity: Provides up to 1.5 A per point with a module total of 8 A.
- Rack-Mounted PLC-5 Integration: Connects directly to the 1771 backplane for seamless system use.
- Conformal Coating: Enhances resistance to contaminants and environmental stress.
- Defined Signal Delays: Typical off-state delays of 45 ms (AC) and 50 ms (DC) for predictable switching.
- Wide Environmental Operating Window: Functions reliably from 0 to 60 °C with 5–95% non-condensing humidity.
- Compatible Wiring Arms: Works with 1771-WA or 1771-WH for secure and standardized field wiring.
The 1771-OB delivers the reliability and precision required for dependable DC output control in PLC-5 automation systems.
Description
The Allen-Bradley 1771-OB is an 8-channel digital DC output module designed for use with PLC-5 chassis. It provides sourcing-type outputs operating from 10 to 27 VDC and supports continuous current ratings suitable for driving industrial loads. The 1771-OB is built for reliable switching performance in standard automation environments with defined power, temperature, and humidity limits.
Technical Specifications
| Condition | New/Never Used Surplus |
| Brand | Allen-Bradley |
| Category | Digital Output Module |
| Part Number | 1771-OB |
| Subcategory | PLC-5 I/O Module |
| Manufacturer | Rockwell Automation |
| Module Type | Digital DC Output Module |
| Number of Outputs | 8 |
| Voltage Category | 10–60 VDC, Source |
| DC Operating Voltage | 10–27 VDC |
| Backplane Current | 165 mA |
| Max Continuous Current per Output | 1.5 A |
| Max Continuous Current per Module | 8 A |
| Max Surge Current | 4 A for 1 ms (repeatable every 1 s) |
| Data Format | BDC or Natural Binary |
| Typical AC Signal Delay (Off) | 45 ± 15 ms |
| Typical DC Signal Delay (Off) | 50 ms |
| On-State Voltage Drop | 2 VDC |
| Off-State Leakage Current | 1 mA per output |
| Wiring Arms | 1771-WA, 1771-WH |
| Coating | Conformal coat |
| Mounting | Rack mount (1771 chassis) |
| Operating Temperature | 0 to 60 °C |
| Storage Temperature | −40 to 85 °C |
| Relative Humidity | 5–95% non-condensing |
Information About 1771-OB
The 1771-OB is part of the Allen-Bradley PLC-5 I/O family and is constructed as a rack-mounted module that interfaces through the 1771 backplane. It employs a conformal-coated design to support operation in demanding industrial atmospheres while maintaining electrical stability. The module integrates seamlessly with PLC-5 controllers and uses wiring arms such as the 1771-WA or 1771-WH for field termination. Typical applications include driving solenoids, indicators, relays, and other DC loads requiring sourcing outputs with predictable on/off response characteristics.
Key Features:
- Eight Sourcing Outputs: Supports 8 independent DC output channels for control of field devices.
- 10–27 VDC Operating Range: Suitable for standard industrial DC control voltages.
- Per-Output Current Capacity: Provides up to 1.5 A per point with a module total of 8 A.
- Rack-Mounted PLC-5 Integration: Connects directly to the 1771 backplane for seamless system use.
- Conformal Coating: Enhances resistance to contaminants and environmental stress.
- Defined Signal Delays: Typical off-state delays of 45 ms (AC) and 50 ms (DC) for predictable switching.
- Wide Environmental Operating Window: Functions reliably from 0 to 60 °C with 5–95% non-condensing humidity.
- Compatible Wiring Arms: Works with 1771-WA or 1771-WH for secure and standardized field wiring.
The 1771-OB delivers the reliability and precision required for dependable DC output control in PLC-5 automation systems.