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1756-OB16IEFS Allen-Bradley
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1756-OB16IEFS Allen-Bradley

$1,100.00 - $1,840.88
$1,100.00
$1,100.00 - $1,840.88
$1,100.00
Surplus - Tested (With Warranty)
Need a Specific Revision?
$1,100.00
2 in stock
New / Open-Box Surplus
Need a Specific Revision?
$1,840.88
7 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-OB16IEFS from Allen-Bradley is a ControlLogix rack-mounted digital output module featuring 16 independently isolated, sinking/sourcing outputs. It supports scheduled outputs via CIP Sync and is electronically protected per point. The module interfaces with 12/24 V DC control circuits and integrates into ControlLogix systems to drive discrete loads such as valves, relays, or indicators in industrial control and automation applications. 1756-OB16IEFS provides deterministic output timing with programmable fault-mode response.

Best Suited For

  • Scheduled output control in CIP-Sync environments
  • Individually isolated sinking/sourcing digital outputs
  • Applications requiring fast output timing (PWM control)
  • Hardwired output control in ControlLogix chassis
Outputs
16 scheduled, individually isolated
Operating voltage range
10…30 V DC
Max current per channel
2 A @ 45 °C (1 A @ 60 °C)
Backplane power
1.7 W
Power dissipation max
4.9 W

Technical Specifications

I/O & Electrical

Operating voltage range
10…30 V DC
Voltage category
12/24 V DC sink/source
Outputs
16 scheduled, individually isolated
Max current per channel
2 A @ 45 °C; 1 A @ 60 °C
Max current per module
8 A @ 45 °C; 16 A @ 60 °C
Surge current per point
4 A for 10 ms (repeatable every 2 s)
Off-state leakage current per point
< 0.1 mA
Min load current
1 mA per point
On-state voltage drop
0.2 V DC @ 1 A; 0.4 V DC @ 2 A
Scheduled outputs
CIP Sync only
Unscheduled output delay
14 µs nom / 23 µs max
PWM cycle time
1 ms min / 1 h max
PWM on-time
200 µs min / 1 h max

Communication & Power

Current draw @ 5.1 V (backplane)
320 mA
Current draw @ 24 V (backplane)
3 mA
Total backplane power
1.7 W
Power dissipation
4.9 W max
Thermal dissipation
16.71 BTU/hr

Physical & Environmental

Isolation voltage (outputs-to-backplane)
250 V continuous (reinforced)
Isolation voltage (output-to-output)
250 V continuous (basic)
Enclosure type
None (open-style)
Slot width
1
Removable terminal blocks
1756-TBCH, 1756-TBS6H
RTB keying
User-defined mechanical
Module keying
Electronic, software configurable
Pilot duty
4 A inrush

Certifications

ATEXIECExChina CCCAustralian RCMCEEur-EAC

Certified to ATEX, IECEx, China CCC, Australian RCM, CE, Eurasian Economic Community as of April 29, 2026.

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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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