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Allen Bradley 1756-OA8 Digital AC Output Module

Allen Bradley 1756-OA8 Digital AC Output Module

  • Product Item : 1756-OA8
  • Product Brand : Allen-Bradley
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The 1756-OA8 AC output module has a total backplane power rating of 1.07 Watts. The output delay time (from off to on and on to off) is 9.3 milliseconds at 60 Hertz and 11 milliseconds at 50 Hertz. Eight outputs (4 points each for Group 0 and Group 1) are available on the 1756-OA8 ControlLogix output module. Its States in Fault mode per point and States in Program mode per point can hold the last state (for both the on-state and the off-state). The current rating per point is 2 Amps at 60 degrees Celsius (linear derating) and the surge current rating per point is 20 Amps for 43 milliseconds (repeatable every 2 seconds at 60 degrees Celsius). The maximum power dissipation rating of the 1756-OA8 ControlLogix output module is 5.1 Watts at 60 degrees Celsius while its thermal dissipation is 17.39 BTU per hour. Its slot width is 1 and its minimum load current per point is 10 milliamps. In its off-state, the maximum leakage current of this module is 3 milliamps per point. The 1756-OA8 output module also supports synchronization within 16.7 seconds for scheduled outputs.

Technical specifications for 1756-OA8

ManufacturerRockwell Automation

BrandAllen-Bradley

SeriesControlLogix

Part Number/Catalog No.1756-OA8

Outputs8

Module TypeDigital AC Output Module

Voltage120-240 Volts AC

No. of OutputsEight (8

Voltage Category120 / 240 Volts AC

Maximum Output Current Rating-Point2 Amps at 60 degrees Celsius

Operating Voltage Range74-265 Volts AC

Maximum Output Current Rating-Module5 Amps at 30 degrees Celsius, 4 Amps at 60 degrees Celsius

Output Delay TimeProgrammable 9.3 or 11 milliseconds

Current per point0.5 A @ 60 °C (140 °F)

Current per group, max2 A @ 60 °C (140 °F)

Removeable Terminal Block(s)1756-TBNH, 1756-TBSH

Current per module5 A @ 30 °C (86 °F) linear derating; 4 A @ 60 °C (140 °F) linear derating

Backplane Current at 5 Volts200 mA

Isolation Voltage50 Volts Continuous

Power Dissipation (Max)5.1 W @ 60 °C (140 °F)

EnclosureNone

Backplane Current at 24 Volts2 mA

UNSPSC32151705

Removable Terminal Block(s)1756-TBCH, 1756-TBSH