1756-OA16 A-B

T Any illustrations, charts, sample programs, and layout examples that are shown in this publication are intended solely for the purposes of example. 

Since there are many variables and requirements that are associated with any particular installation, Rockwell Automation does not assume 

responsibility or liability for actual use based on the examples that are shown in this publication.

1756-IN16, 1756-IN16K, 1756-ON8, 1756-ON8K, 1756-OA8, 1756-OA8K, 1756-0A8D

Attribute 1756-IN16, 1756-IN16K 1756-ON8, 1756-ON8K 1756-OA8, 1756-OA8K 1756-OA8D

Temperature, operating

• IEC 60068-2-1 (Test Ae, Operating Cold)

• IEC 60068-2-2 (Test Be, Operating Dry Heat)

• IEC 60068-2-14 (Test Nb, Operating Thermal Shock)

0 °C ≤ Ta ≤ 60 °C (32 °F ≤ Ta ≤ 140 °F)

Corrosive Atmosphere(1)

ASTM B845-97 Method H Accelerated Test (20-Day Exposure)

(1) Only applicable to modules that end with a “K” or “XT”.

Severity Level G3 per ANSI/ISA 71.04-2013, Airborne Contaminants - Gases

Severity Level CX (2)per IEC 60721-3-3:2019, Chemically Active Substances

(2) Up to 9.6 microns per year, corrosion rate of copper.

Temperature, surrounding air, max 60 °C (140 °F) 

Enclosure type rating None (open-style)

Voltage and current ratings

Backplane • 5.1V DC, 135 mA

• 24V DC, 2 mA

• 5.1V DC, 200 mA

• 24V DC, 2 mA

• 5.1V DC, 200 mA

• 24V DC, 2 mA

• 5.1V DC, 175 mA

• 24V DC, 250 mA

Inputs 10…30V AC, 50/60 Hz 25 mA max — — —

Output —

10…30V AC, 50/60Hz, 

2 A pilot duty, Current per output

5 A/4 A 30 °C (86 °F)/60 °C (140 °F), 

Current per module, max

120/240V AC, 50/60 Hz, 

2 A pilot duty

120V AC, 50/60 Hz, 

1 A, 8 A surge

Isolation voltage • 250V (continuous), basic insulation type, channels to backplane

• No isolation between individual channels

• 250V (continuous), basic 

insulation type, outputs 

to backplane

• No isolation between 

individual outputs

• 125V (continuous), basic 

insulation type, outputs to 

backplane

• No isolation between 

individual outputs

Wire size

1756-TBNH

• Single wire connection: 0.33…2.1 mm2

 (22…14 AWG) solid or 

stranded shielded copper wire rated at 105 °C (221 °F) or greater, 

1.2 mm (3/64 in.) insulation max

• Double wire connection: 0.33…1.3 mm2

 (22…16 AWG) solid or 

stranded copper wire rated at 105 °C (221 °F) or greater, 1.2 mm (3/

64 in.) insulation max

1756-TBSH

• Single wire connection: 0.33…2.1 mm2

 (22…14 AWG) solid or 

stranded shielded copper wire rated at 105 °C (221 °F) or greater, 

1.2 mm (3/64 in.) insulation max

0.33…2.1 mm2

 (22…14 AWG) solid or stranded copper wire 

rated at 90 °C (194 °F) or greater, 1.2 mm (3/64 in.) 

insulation max

Wiring category(3)

(3) Use this Conductor Category information for planning conductor routing. See Industrial Automation Wiring and Grounding Guidelines, publication 1770-4.1.

1 - on signal ports

Terminal block torque 1756-TBNH 

0.36 N•m (12 lb•in)

North American temp code T3C T4A

ATEX/IECEX temperature code T3 T4 — —

1756-OA16, 1756-OA16K

Attribute 1756-OA16, 1756-OA16K

Temperature, operating

IEC 60068-2-1 (Test Ae, Operating Cold),

IEC 60068-2-2 (Test Be, Operating Dry Heat),

IEC 60068-2-14 (Test Nb, Operating Thermal Shock)

0…60 °C (32…140 °F)

Corrosive Atmosphere(1)

ASTM B845-97 Method H Accelerated Test (20-Day Exposure)

(1) Only applicable to modules that end with a “K” or “XT”.

Severity Level G3 per ANSI/ISA 71.04-2013, Airborne Contaminants - Gases

Severity Level CX (2)per IEC 60721-3-3:2019, Chemically Active Substances

(2) Up to 9.6 microns per year, corrosion rate of copper.

Temperature, surrounding air, max 60 °C (140 °F) 

Enclosure type rating None (open style)

Voltage and current ratings

Backplane • 5.1V DC, 400 mA

• 24V DC, 2 mA

Outputs 120/240V AC, 50/60 Hz, 0.5 A pilot duty

Isolation voltage 250V (continuous), basic insulation type, outputs to backplane

Wire size 0.33…2.1 mm2 (22…14 AWG) solid or stranded copper wire rated at 90 °C (194 °F) or greater, 1.2 mm2

 (3/64 in.) insulation max

Wiring category(3)

(3) Use this Conductor Category information for planning conductor routing. See Industrial Automation Wiring and Grounding Guidelines, publication 1770-4.1.

1 - on signal ports 

Terminal block torque 1756-TBNH

0.36 N•m (12 lb•in)

North American temperature code T4

2711P-T4W21D8S, 2711P-T4W22D8S, 2711P-T4W21D8S-B, 2711P-T4W22D8S-B, 2711P-T6C21D8S, 2711P-T6C22D8S, 2711P-T6C21D8S-B, 2711P-T6C22D8S-B, 2711P-T7C21D8S, 2711P-T7C22D8S, 2711P-T7C21D8S-B, 2711P-T7C22D8S-B, 2711P-T9W21D8S, 2711P-T9W22D8S, 2711P-T9W21D8S-B, 2711P-T9W22D8S-B, 2711P-T10C21D8S, 2711P-T10C22D8S, 2711P-T10C21D8S-B, 2711P-T10C22D8S-B, 2711P-T12W21D8S, 2711P-T12W22D8S, 2711P-T12W21D8S-B, 2711P-T12W22D8S-B, 2711P-T15C21D8S, 2711P-T15C22D8S, 2711P-T15C21D8S-B, 2711P-T15C22D8S-B

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