Overview
The Honeywell TC-IDA161 is a 16-point AC digital input module designed for industrial control systems. This module receives 120VAC signals from discrete input points and converts them into digital format for processing by PLCs and automation controllers. Built for reliability in demanding industrial environments, the TC-IDA161 provides a proven interface between field devices and control systems.
Key Features
- 16-point input configuration (8 points per common)
- 120VAC rated input with 50/60Hz operation
- IEC Type 1+ compliant input compatibility
- High isolation voltage: 2546 VDC channel-to-channel and user-to-system
- Compact design with terminal block connectivity
- Low power dissipation at 6.0 watts maximum
Technical Specifications
Input voltage range: 79–132 VAC, 47–63 Hz. Nominal input current: 12.5 mA @ 50/60 Hz. On-state voltage minimum: 5 mA @ 79 VAC. Off-state voltage maximum: 20 VAC with 2.5 mA off-state current. Input impedance: 11 kΩ @ 60 Hz maximum. Short/inrush current: 250 mA peak, decaying to <37% in 22 ms without activation. Power dissipation: 6.0 watts maximum. Isolation: 100% tested at 2546 VDC for 1 second. Connection: TC-TBNH 20-position terminal block.
Typical Applications
- Monitoring discrete 120VAC-powered devices (limit switches, pushbuttons, motor starters)
- Industrial process control and signal acquisition
- Machine automation and facility control systems
- HVAC and environmental control systems
- Discrete input monitoring in legacy and modern DCS/PLC environments
Compatibility & Replacements
Compatible With
- Honeywell C200 DCS systems
- Honeywell TDC 3000 control platforms
- Honeywell ALK controllers
- Standard 120VAC industrial field devices and sensors
- Industry-standard DCS and PLC backplanes accepting this module format
Replaces / Drop-In Replacement For
Verify compatibility with your system integrator before ordering. The TC-IDA161 is a legacy module no longer in active production; confirm form-factor and pinout compatibility with your control system before ordering.
Works With
- Honeywell automation software and engineering tools
- Standard IEC 61131-3 compliant control environments
- AC voltage input protocols and 24VDC supply systems
- EIA/TIA terminal block connector standards
