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1756-OB16D Allen-Bradley
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1756-OB16D Allen-Bradley

$400.00 - $405.00
$400.00
$400.00 - $405.00
$400.00
Surplus - Tested (With Warranty)
Need a Specific Revision?
$400.00
2 in stock
New / Open-Box Surplus
Need a Specific Revision?
$405.00
3 in stock
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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 1756-OB16D is an Allen-Bradley ControlLogix diagnostic DC output module offering 16 individually regulated output points (configured as two groups of eight). It accepts a 24 V DC source (operating range: 19.2-30 V DC) and reports per-point and per-module diagnostics. In a control system it delivers switched DC outputs with diagnostic feedback and configurable fault and program modes. Its typical uses include status signaling, actuator control, and fault reporting in industrial automation.

Best Suited For

  • ControlLogix systems requiring per-point diagnostics
  • Switching 24 V DC loads with feedback
  • Integration with sequential or fault-monitored processes
  • Machines with distributed I/O needing diagnostic output tracking
Output points
16 (diagnostic)
Operating voltage range
19.2-30 V DC
Max current per point
2 A @ 30 °C (1 A @ 60 °C)
Backplane power
4.64 W

Technical Specifications

I/O & Electrical

Output points
16 (diagnostic, two groups of 8)
Operating voltage range
19.2-30 V DC
Load current, min per point
3 mA per point
Off-state leakage current, max per point
1 mA per point
On-state voltage drop, max
1.2 V DC @ 2 A
Surge current per point
4 A for 10 ms, repeatable every 1 s
Current per point, max
2 A @ 30 °C; 1 A @ 60 °C
Current per module, max
8 A @ 30 °C; 4 A @ 60 °C

Communication & Power

Backplane current on 5.1 V
250 mA
Backplane current on 24 V
140 mA
Total backplane power
4.64 W
Power dissipation, max
3.3 W @ 60 °C
Thermal dissipation
11.25 BTU/hr

Physical & Environmental

Slot width
1
Enclosure type
None (open-style)
Temperature code
T4
Output delay time Off→On
60 µs nominal / 1 ms max
Output delay time On→Off
630 µs nominal / 5 ms max

Certifications

CEATEXIECExAustralian RCMUK EXEACChina CCCABS

Precisely certified per module as of May 19, 2026; includes CE, ATEX, IECEx, Australian RCM, UK Ex, Eurasian Economic Community, China CCC, American Bureau of Shipping among others.

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USA Stock

Sourced and shipped from Texas, USA. Never anonymous overseas marketplace stock.

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Rockwell Automation documentation

Access official manuals, datasheets, and lifecycle information for this part directly from Rockwell Automation.

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Must Read: Disclaimer

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