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ControlLogix 16 Pt D/I 24V AC Module
SKU: 1756-IN16K
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Short Description
Description:
A 16-point digital input module from the ControlLogix family, the 1756-IN16K is designed especially to process 24V AC inputs.
Each input channel is independently isolated, which improves noise immunity and enables flexible wiring across different voltage domains—ideal for complicated control systems.
The conformal coating (designated by the "K" suffix) that shields the internal circuitry from dust, moisture, and corrosive substances is what distinguishes this module.
This makes it ideal for severe or high-humidity situations like chemical plants, outdoor installations, and food processing facilities.
The module includes status LEDs for each input, which provide real-time visual feedback, and it is compatible with conventional ControlLogix chassis mounting.
It works with removable terminal blocks such as the 1756-TBCH or 1756-TBS6H, which makes installation and maintenance easier.
Whether you're monitoring AC-powered sensors, switches, or other field equipment, the 1756-IN16K provides reliable performance and industrial-grade protection.
Buy currently uses Select Automation shop pricing and checkout.
Electrical Characteristics:
Input type: AC digital input.
Number of channels: 16 individually isolated inputs.
Nominal voltage: 24V AC.
Operating voltage range: Typically, 20–30V AC.
Frequency range: 47–63 Hz.
Input current: ~7.5 mA @ 24V AC.
Input impedance: ~3.2 kΩ.
Isolation: Channel-to-channel isolation for noise immunity and mixed-voltage flexibility.
Mechanical & Environmental:
Conformal coating: Yes (denoted by “K” suffix) – protects against moisture, dust, and corrosive agents.
Backplane current draw:
~120 mA @ 5.1V DC.
~100 mA @ 24V DC.
Power dissipation: ~3.5 W.
Thermal dissipation: ~11.9 BTU/hr.
Operating temperature: –20°C to +60°C.
Storage temperature: –40°C to +85°C.
Humidity: 5% to 95% non-condensing.
Mounting: Standard ControlLogix chassis slot.
Terminal block options: 1756-TBCH or 1756-TBS6H.
Certifications:
UL Listed: Industrial Control Equipment.
CSA Certified: Process Control Equipment.
Hazardous location rating: Class I, Division 2 Groups A, B, C, D.
CE Marked: Yes.