PRODUCT INFORMATION
Product Overview
The Allen-Bradley 1794-OB32P is a FLEX I/O Digital Output Module designed for industrial control applications. This module provides thirty-two sourcing output channels arranged into two isolated groups of sixteen channels each. Each output group operates from a separate DC power supply spanning 10V DC to 31.2V DC. The nominal operating voltage for connected field equipment is 24V DC. Channels 0 through 15 supply up to 6 A aggregate current. Channels 16 through 31 supply up to 8 A aggregate current.
Every output channel incorporates self-protection against thermal overload and short circuits. The module features thirty-two yellow LED indicators to show individual channel status. Backplane communication requires 80 mA of current from the Flexbus at 5V DC. It dissipates a maximum of 5.3 W and 18.1 BTU/hr at 31.2V DC. The unit mounts onto a standard DIN rail using a compatible terminal base unit.
TECHNICAL DATA
Technical Specifications
| Parameter | Specification |
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| Product Line | Flex I/O 1794 |
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| UPC | 612598286034 |
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| Weight | 0.56 lbs (0.26 kg) |
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| Output Current Rating | 14.0 A max per module (6 A total for channels 0...15; 8 A total for channels 16...31) |
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| Product Description | Flex IO DC Output Module |
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| Number of Outputs | Thirty-Two (32) Channels |
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| Output circuit type | Sourcing |
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| Terminal base | 1794-TB32 and 1794-TB32S |
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| ON state Voltage, min | 10VDC |
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| ON state Voltage, max. | 31.2VDC |
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| ON state Voltage, nom | 24VDC |
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| Enclosure | Open-type |
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| Mounting | DIN Rail |
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| Wire Size | Determined by installed terminal base |
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| Operating Temperature | 0 to 55 C (32 to 131 F) |
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| Storage Temperature | -40 to 85 C (-40 to 185 F) |
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| Vibration | 5g @ 10 to 500 Hz |
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| Operating Shock | 30 g |
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| Outputs | 32 Sourcing Current |
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| On-state Current max. | 500mA per Channel |
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| On-state Voltage Drop max. | 0.5V DC |
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| Off-state Leakage Current max. | 0.5mA |
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| Isolation Voltage | 50V Continuous |
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| Flexbus Current | 80mA @ 5V DC |
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| Power Dissipation | 5.3W @ 31.2V DC max. |
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| Thermal Dissipation | 18.1 BTU/hr. @ 31.2V DC max. |
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TECHNICAL INFORMATION
Features
- Thirty-two discrete sourcing outputs split across two isolated groups.
- Electronic fusing and overload protection built into each channel.
- Thirty-two dedicated yellow status indicators for output state monitoring.
- Low on-state voltage drop of 0.5V DC maximum.
- Fast output switching delays of 0.5 ms turn-on and 1.0 ms turn-off.
- Continuous isolation rating of 50V between field wiring and system logic.
TECHNICAL INFORMATION
Applications
- Driving 24V DC visual signaling equipment including pilot lights and stack lights.
- Controlling audible alarm devices such as industrial horns, buzzers, and sirens.
- Actuating 24V DC solenoid valves and pneumatic manifolds.
- Energizing intermediate relays and low-power DC contactor coils.
TECHNICAL INFORMATION
Installation Guidelines
- Mount the module onto a compatible 1794-TB32 or 1794-TB32S terminal base unit.
- Snap the terminal base assembly securely onto a standard DIN rail.
- Verify field wiring size conforms to the selected terminal base specifications.
- Maintain operating ambient temperatures between 0 and 55 degrees Celsius.
TECHNICAL INFORMATION
Compatibility
- Compatible with Allen-Bradley 1794-TB32 terminal base units.
- Compatible with Allen-Bradley 1794-TB32S spring-clamp terminal base units.
- Interconnects with standard FLEX I/O adapters across the Flexbus backplane.
TECHNICAL RESOURCES
Documentation
COMPATIBILITY
Compatibility & Replacement
COMPATIBLE MODELSCompatible with Allen-Bradley 1794-TB32 terminal base units. Compatible with Allen-Bradley 1794-TB32S spring-clamp terminal base units. Interconnects with standard FLEX I/O adapters across the Flexbus backplane.
Verify compatibility against the exact Part Number, revision and manufacturer documentation before ordering.
PART VERIFICATION
Before You Order
Industrial automation parts can share similar model names, suffixes and revisions. Confirm the complete manufacturer Part Number before purchase.
01Check Part NumberMatch the complete ordering code on the existing unit.
02Confirm RevisionCheck suffix, hardware or firmware when applicable.
03Send a Label PhotoWe can review a clear label photo when identification is uncertain.
ORDERING PROCESS
From RFQ to Dispatch
1Submit Part Number2Verify Product Identity3Confirm Stock & Condition4Issue Quotation5Dispatch & Tracking
PRODUCT FAQ
Frequently Asked Questions
Which terminal bases are compatible with the Allen-Bradley 1794-OB32P?
The 1794-OB32P operates with 1794-TB32 screw-clamp bases and 1794-TB32S spring-clamp bases.
What is the maximum current rating of the 1794-OB32P module?
The module supports up to 14 A total, with 6 A on group 1 and 8 A on group 2.
Does the 1794-OB32P provide internal channel protection?
Yes. Each output channel features electronic short-circuit protection and thermal overload shutdown capabilities.
What is the reference price range for the 1794-OB32P?
Observed market reference pricing ranges from approximately $354 to $619 USD. Figures represent indicative market pricing, not a final quotation.
