Honeywell TC-IDK161 Discrete Input Module

Overview

The TC-IDK161 is a 16-point isolated discrete input module for 120 VAC signals. It integrates with Honeywell’s C200 and DCS control systems. The module detects AC inputs from field devices like switches, sensors, and relays. Each input channel isolates individually, ensuring reliable operation and strong noise immunity in industrial environments.

Technical Specifications

• Model Number: TC-IDK161

• Input Channels: 16 (individually isolated)

• Nominal Input Voltage: 120 VAC

• On-State Voltage Range: 79–132 VAC, 47–63 Hz

• Off-State Voltage (Max): 20 V

• On-State Current (Min): 5 mA @ 79 V; 15 mA @ 132 V

• Off-State Current (Max): 2.5 mA

• Input Impedance: 11 kΩ @ 60 Hz

• Input Compatibility: IEC Type 1+

• Short/Inrush Current: 250 mA peak (decays to <37% in 22 ms without activation)

• Isolation Voltage: 2546 VDC (channel-to-channel and user-to-system, 1 second test)

• Input Delay (Programmable):

• Off-to-On: 1–10 ms

• On-to-Off: 9–18 ms

• Hardware Delay: Up to 10 ms off-to-on, 8 ms on-to-off plus filter time

• Power Dissipation: 4.9 W

• Backplane Current Draw:

• 0.003 A @ 24 VDC

• 0.125 A @ 5 VDC

• Connection: 36-position terminal block (TC-TBCH)

• Dimensions: 51 × 178 × 356 mm

• Weight: 0.43 lbs