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1794-OB16D Allen-Bradley

Name: 1794-OB16D Allen-Bradley
Brand: Allen Bradley
SKU: 1794-OB16D
Price: 549.2 USD
Availability: InStock

$549.20 - $1,540.00

$549.20

$549.20 - $1,540.00

$549.20

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Product Details

Description · Specifications · Product Overview

Specifications provided for reference. Verify critical details against official manufacturer documentation before installation.

Product Overview

The Allen-Bradley 1794-OB16D is a Flex I/O digital output module for the 1794 Flex, Flex Ex, and Flex XT I/O system platforms. It provides 16 sourcing (positive-logic) 24 V DC output channels with built-in diagnostics for open-wire, short-circuit, and reverse polarity faults. The module reports diagnostic status via per-channel and module-level indicators and status bits. In a control system, it is used for switching discrete loads such as pilot lights, relays, and solenoids while providing diagnostic feedback. 1794-OB16D supports on-the-fly module replacement without system shutdown.

Best Suited For

Discrete DC output control (pilot lights, relays, solenoids)
Applications requiring channel-level diagnostics (open/short detection)
Use with 1794 Flex I/O terminal bases (TB3 series)
Cold-swap modular I/O expansion

Channels

16 source outputs

Nominal output voltage

24 V DC

Max module current

8.0 A

Diagnostics

open-wire, short-circuit, reverse-polarity

Operating temperature

0…55 °C

Technical Specifications

I/O & Electrical

Number of outputs

16 sourcing

Output voltage range

10…31.2 V DC

Nominal output voltage

24 V DC

Output current, per channel

1.0 mA min, 500 mA max

Module output current, total

8.0 A

Off-state leakage current, max

0.5 mA

Surge output current

2 A for 50 ms, repeatable every 2 s

Flexbus current

60 mA @ 5 V DC

Isolation voltage

50 V continuous (I/O to system)

Communication & Power

Power dissipation, max

4.8 W @ 31.2 V DC

Thermal dissipation, max

16.4 BTU/hr @ 31.2 V DC

Physical & Environmental

Operating temperature

0…55 °C (32…131 °F)

Dimensions (HxWxD)

46 × 94 × 53 mm (1.8 × 3.7 × 2.1 in); 94 × 94 × 69 mm installed

Certifications

UL ListedRegistro Italiano NavaleAmerican Bureau of Shipping

UL Listed Hazardous; Registro Italiano Navale; American Bureau of Shipping (as of April 28 2026).

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Rockwell Automation documentation

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