CBT 3T6 5R

BACnet Advanced Application Controller


The CBT-3T6-5R BACnet® advanced application controller is best for rooftop HVAC units, small air handling units, heat pumps, and fan coil units. Offering an easy-entry price point, , the CBT-3T6-5R offers features to empower your smart building updates.

Quality design and built in the USA, the CBT-3T6-5R provides:

  • 6 universal inputs
  • Relay outputs
  • 3 UniPuts™ with Triac (configurable as inputs or
  • Dedicated input for the CBT-STAT intelligent room display

The CBT-3T6-5R is shipped with a unique MS/TP address based on its serial number, but the address may also be set manually using a seven-way DIP switch. The controller will accommodate custom programming using the CXproHD programming software.

This controller ships with a variety of powerful and flexible pre-configured strategies, which can be quickly configured to control almost any Rooftop or Heat Pump application. 


  • Unique Flexibility with UniPuts™
    The CBT-3T6-5R controller offers UniPutsTM - a revolutionary answer to flexible point configuration allowing points on the controller to be configured as an input or output, maximizing flexibility relative to programming changes as well as point capacity on the controller and utilizing less space in the enclosure.
  • Cost-Effective, Low Entry Point for Building Control
    CBT-3T6-5R range of terminal equipment controllers offers reduced costs in terms of implementation, training, rollout, and maintenance. Modular, extendible packages along with low installation costs mean a low entry point for building control. The pre-loaded rooftop and heat pump strategies can decrease your project engineering and installation time. These strategies link to pre-configured graphics in the Cylon Auto-Matrix Award-winning ASPECT® API, further reducing your development and deployment time.
  • Highly Programmable & Extendable via Web-Enabled HVAC Technology
    The CBT-3T6-5R terminal equipment controller is built on an advanced web-based 32-bit architecture. It is shipped pre-loaded with a multitude of powerful and flexible strategies, but it is also fully programmable to meet your most demanding building automation needs. With built-in diagnostics, expanded data logging, and strategy storage it offers the flexibility of being a stand-alone or network enabled controller.


  • BACnet MS/TP Fieldbus
  • 6 Universal Inputs
    Can be configured as analog or digital, with pulse counting on the 6th input
  • 3 UniPut with Triac Outputs
    Can be configured as analog / digital outputs or voltage inputs along with Triac functionality that can switch the neutral side of a 24 VAC load
  • 5 Relay Digital Outputs
    3 outputs can switch up to 230 VAC, 2 can switch up to 24 VAC
  • 1024 Entries per Trendlog
  • Data Security
    Strategy and setpoints backed up in flash
  • Up to 500 Strategy Blocks
  • Up to 6 Trendlogs


Processor  STM32F103ZET6 32bit processor
Clock Speed 8 Mhz Crystal, 72 Mhz internal processor clock rate
System Memory (soldered to PCB) 1024KB flash, 64KB SRAM internal to processor, 1MB external SRAM
Supply Requirements 24 VAC +15%/-20% 50/60 Hz
Transformer Rating Up to 10 VA
Termination I/O & Comms: Grey Pluggable PCB mounted screw terminal connections
24 VAC Power: Green Pluggable PCB mounted screw terminal connections
230 VAC Relay: Green PCB mounted screw terminal connections. These are not pluggable
Conductor Area Max: AWG 12 (3.09 mm2) Min: AWG 22 (0.355 mm2)
Temperature & Humidity 32° to 122° F (0° to 50° C) ambient 0-90% RH non-condensing
EMC Immunity / Emission EN 61326-1 / EN 61326-1
Approvals UL Listed (CDN & US)
UL 916 Energy Management Equipment
File Number E176435
Safety EN 60730-1:2011
Additional Info
Size 5.1" x 5.1" x 1.7" (145 x 130 x 45 mm)
Enclosure Injection-molded ABS
Mounting (DIN rail)

One Technology Lane
Export, PA 15632
(724) 733-2000 [P]

New Hampshire
25 Sundial Avenue Suite 310W
Manchester, NH 03103
(724) 733-2000 [P]


(724) 733-2000
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