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1756-OA8 Allen-Bradley
Original price
$365.49
-
Original price
$1,237.50
Original price
$365.49
$365.49
-
$1,237.50
Current price
$365.49
Trusted By
Product Details
Specifications provided for reference. Verify critical details against official manufacturer documentation before installation.
Product Overview
The 1756-OA8 is an Allen-Bradley ControlLogix digital AC output module offering eight output channels arranged in two groups of four. It functions by switching 120/240 V AC loads (e.g., pilot devices, relays, lamps) in industrial control systems via a local or remote 1756 chassis. Typical applications include distributed machine control, panel-mounted load switching, and discrete process control requiring AC outputs. 1756-OA8 integrates into ControlLogix systems and supports scheduled and fault-mode output behaviors.
Best Suited For
- ControlLogix chassis distributed load switching
- Panel-mounted discrete AC device control
- Applications needing grouped AC outputs (two groups of 4)
- Systems requiring scheduled output synchronization
Channels
8
Voltage range
74-265 V AC
Max current per point
2 A
Backplane power
1.07 W
Power dissipation
5.1 W @ 60 °C
Technical Specifications
I/O & Electrical
Channels (outputs)
8 (2 groups of 4)
Operating voltage range
74…265 V AC, 47…63 Hz
Voltage category
120/240 V AC
Max current per point
2 A @ 60 °C
Max current per module
5 A @ 30 °C; 4 A @ 60 °C
Surge current per point
20 A for 43 ms (repeatable every 2 s @ 60 °C)
Min load current per point
10 mA
Off-state leakage current, max
3 mA per point
On-state voltage drop, max
1.5 V peak @ 2 A; 6 V peak @ <50 mA
Isolation
250 V continuous between groups of 4 outputs and backplane
Communication & Power
Backplane current draw @ 5 V
200 mA
Backplane current draw @ 24 V
2 mA
Total backplane power
1.07 W
Power dissipation, max
5.1 W @ 60 °C
Thermal dissipation
17.39 BTU/hr
Output delay time
9.3 ms @ 60 Hz; 11 ms @ 50 Hz
Scheduled output sync
within 16.7 s to coordinated system time
Physical & Environmental
Slot width
1
Enclosure type
None (open-style)
Module keying
Electronic, software configurable
RTB options
1756-TBNH, 1756-TBSH
Certifications
UL Listed
