CCC Relay Interface Board
CCC - Relay Interface Board
Low-Voltage Control for High-Voltage
HVAC Equipment
How does the CCC - relay interface board work?
The CCC Neptronic Relay Interface Board provides a reliable interface between low-voltage control systems and line-voltage HVAC equipment. By isolating control signals through relay contacts, the interface board allows thermostats and digital controllers to safely operate high-voltage loads.
Commonly used in fan coil and equipment control applications, the board enables HVAC professionals to integrate digital room controllers with heating elements, fan motors, and other high-voltage devices.
Available with multiple relay outputs, the board supports flexible HVAC control configurations while maintaining safe electrical isolation between control circuits and equipment loads.
Why use the CCC - relay interface board with Neptronic controllers?
High-Voltage Load Control
Switches 120/240 Vac equipment using 24 Vac thermostat signals.
Multiple Contact Options
Available with 3, 4, or 5 relay outputs rated at 7A.
Integrated Circuit Protection
Fused 120/240 Vac and 24 Vac circuits for enhanced safety.
Clear Status Indication
LED indicators provide real-time relay status visibility.
Flexible Installation
Offered as PCB-only or factory-assembled in metal enclosure with secure 4-point mounting.
Fan Coil Optimized
Designed for seamless integration with TFC series thermostats.
Frequently Asked Questions
What is the Neptronic CCC Relay Interface Board?
The Neptronic CCC Relay Interface Board is an HVAC control accessory used to interface controller outputs with external equipment that requires relay-based switching.
What is a relay interface board used for in HVAC systems?
A relay interface board is used to switch or isolate electrical loads such as fans, valves, pumps, heaters, alarms, dampers, or auxiliary devices from a controller signal.
Why use a relay board instead of connecting equipment directly to a controller?
A relay board helps protect the controller, simplify wiring, provide electrical isolation, and allow low-voltage control signals to switch higher-load or separate control circuits.
Where is the CCC Relay Interface Board installed?
The CCC Relay Interface Board is typically installed inside an HVAC control panel, equipment enclosure, or automation cabinet where controller wiring connects to external field devices.
Can a relay interface board be used with HVAC controllers?
Yes. A relay interface board can be used with HVAC controllers when the system needs dry contacts, equipment enable signals, interlocks, alarms, or switching between control circuits.
How do I choose the right relay interface board for an HVAC project?
To choose the right relay interface board, confirm the controller output type, relay contact rating, number of required relay outputs, supply voltage, wiring method, and the electrical load being switched.
Contact
Head Office
National Environmental Products Ltd.
Neptronic
400 Boulevard Lebeau
Montréal (Québec) H4N 1R6 Canada
E-mail: contact@neptronic.com
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