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Honeywell TC300B-G Field-Selectable BACnet MS/TP or BACnet IP - Field-Selectable BACNet MS/TP or BACNET IP Protocol
HoneywellField-Selectable BACNet MS/TP or BACNET IP Protocol

Honeywell TC300B-G Field-Selectable BACnet MS/TP or BACnet IP

The Honeywell TC300B-G is a field-selectable BACnet MS/TP or BACnet IP thermostat controller for 1H/1C conventional heat pump systems. It operates with On/Off (Cool) and On/Off (Heat) temperature adjustment, includes…

SKU 3G-OTH-69097

Also listed as: TC300BG · TC300B G

Brand
Honeywell
Item
TC300B-G Field-Selectable BACnet MS/TP or BACnet IP
Part Number
TC300B-G
Category
Field-Selectable BACNet MS/TP or BACNET IP Protocol
Available to Order
Also known as:TC300B-GHoneywell
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Compliance & shipping

Hazardous material
Not classified as hazardous
California Prop 65 warning
No warning recorded
Licence required
No licence required
Safety Data Sheet
Not available
Special shipping
Ships under standard freight

Technical Specifications

Honeywell
Manufacturer Part Number
TC300B-G
Type
On/Off (Cool)/On/Off (Heat), Gray
Wireless
No
Mfr. Model
TC300B-G
Overall Width
3-15/16
Contact Rating
20 to 30V
Overall Height
4-1/2
Number of Pipes
2;
Terminal Designations
C; COM; DIO1; DIO2; DO1; DO2; DO3; R; UIO1; UIO2;
Number of Relay Inputs
5
Maximum Operating Humidity
90
Minimum Operating Humidity
10
Maximum Temperature Control
122
Maximum Operating Temperature
122
Minimum Operating Temperature
32
Number of Relay Inputs/Outputs
3 DO/2 DIO/3
Number of Cooling Stages - Heat Pump System
1
Number of Heating Stages - Heat Pump System
2
Number of Cooling Stages - Conventional System
1
Number of Heating Stages - Conventional System
1
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Honeywell Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The Honeywell TC300B-G is a field-selectable BACnet MS/TP or BACnet IP thermostat controller for 1H/1C conventional heat pump systems. It operates with On/Off (Cool) and On/Off (Heat) temperature adjustment, includes a dry contact occupancy sensor, and supports both humidification and dehumidification control with an FCU dehumidification with reheat option. The controller features 3 DO/2 DIO/3 UIO, operates at 24V, and comes in a gray housing.

Frequently Asked Questions

What is the Honeywell TC300B-G thermostat controller used for?

The Honeywell TC300B-G is a field-selectable BACnet MS/TP or BACnet IP thermostat controller designed for 1H/1C conventional heat pump systems. It manages On/Off cooling and heating, includes a dry contact occupancy sensor, and supports humidification and dehumidification control with an FCU reheat option.

What are the specifications of the Honeywell TC300B-G?

The Honeywell TC300B-G operates at 24 V, features 3 DO/2 DIO/3 UIO, and supports On/Off (Cool) and On/Off (Heat) temperature adjustment. It includes a dry contact occupancy sensor, humidification and dehumidification control, and comes in a gray housing. It is compatible with 1H/1C conventional heat pump systems.

Where to buy the Honeywell TC300B-G worldwide?

3G Electric supplies the Honeywell TC300B-G thermostat controller worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your location. Contact us to order this BACnet MS/TP or BACnet IP controller for your HVAC system.

How to install the Honeywell TC300B-G thermostat controller?

Install the Honeywell TC300B-G by mounting it on a standard wall box, connecting 24 V power, and wiring the 3 DO/2 DIO/3 UIO terminals per the system schematic. Configure the field-selectable BACnet MS/TP or BACnet IP protocol via the onboard interface. Follow generic HVAC controller best practices for sensor placement and wiring.

Used in

Common applications for Honeywell
Commercial kitchen and inflight-catering steam boilers — RM7890 / RM7895 flame relays with UV detection
Food-processing ramp-and-dwell ovens — DBC2000E / DBC2100E controllers
Hotel and hospital boiler plants — VR8205 combination gas controls
Petrochemical tank-farm heating — V4xxx gas-valve bodies with ML7420 actuators
Retrofit swap-outs from legacy Fireye / Satronic — Honeywell replacement kits
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Honeywell Products

3G Electric supplies Honeywell field-selectable bacnet ms/tp or bacnet ip protocol. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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The Honeywell TC320B-G is a field-selectable BACnet MS/TP or BACnet IP thermostat controller for 4-pipe fan coil units. It operates at 24V and supports On/Off, Floating, Modulating, or 6-Way valves. Features include 3 DO/2 DIO/3 UIO relay inputs/outputs, a dry contact occupancy sensor, and On/Off temperature adjustment for cooling with humidification and dehumidification control. Housing color is gray
Honeywell
The Honeywell TC320B-G is a field-selectable BACnet MS/TP or BACnet IP thermostat controller for 4-pipe fan coil units. It operates at 24V and supports On/Off, Floating, Modulating, or 6-Way valves. Features include 3 DO/2 DIO/3 UIO relay inputs/outputs, a dry contact occupancy sensor, and On/Off temperature adjustment for cooling with humidification and dehumidification control. Housing color is gray

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