The Honeywell 8C-TCNT01, also cataloged as the 8C-TCNT01 Input/Output Termination Assembly, operates as a dedicated hardware component for field signal termination within Honeywell C300 Controller Systems.
Hardware Specifications
Parameter
Specification
Model
8C-TCNT01
Brand
Honeywell
Origin
USA / As Manufactured
Weight
0.22 kg
Dimensions
172 mm x 144 mm x 63 mm
Operating Temp
-20 to +70 deg C
Power Consumption
24 VDC / 0.311 A
Equipment Type
Input/Output Termination Assembly
Controller Compatibility
C300 Series
Supply Voltage
24 VDC
Process Control Integration and Signal Integrity
4-20 mA HART Loop Signal Conditioning: Integrates low-pass filtering and surge attenuation networks for field instrument loops connected to C300 I/O subsystems.
Channel-to-Channel Isolation: Provides galvanic isolation barriers across field wiring channels to suppress common-mode voltage spikes and prevent ground loops.
Cold Junction Compensation Support: Features precision terminal block interfaces designed to minimize thermal gradients across field connections.
Frequently Asked Questions
Q: What is the maximum current consumption rating for the 8C-TCNT01 termination assembly under 24 VDC bus power?
A: The assembly is rated for a continuous operating current draw of 0.311 A at 24 VDC supply voltage.
Q: How should field wiring shields be terminated on the assembly to prevent common-mode noise?
A: Connect signal cable shield drain wires directly to the designated chassis ground terminal on the assembly, leaving the field sensor end ungrounded.
Field Installation Guidelines
Ensure the 24 VDC field power supply is de-energized before connecting or disconnecting field wiring terminal blocks.
Mount the assembly securely on the standard I/O carrier structure within the enclosure to ensure low-resistance earth grounding.
Route field input wiring in separate cable channels away from high-voltage AC lines to maintain signal integrity.
Torque field wiring terminal screws to standard manufacturer specifications to prevent high-resistance contact faults.
