TC903-3A4LDPSA Schneider Fan Coil Thermostat 4-Pipe Modbus LCD White Professional Integrated HVAC Unit

Product Summary
TC903-3A4LDPSA Schneider Fan Coil Thermostat 4-Pipe Modbus LCD White Professional Integrated HVAC Unit Product Overview The Schneider Electric TC903-3A4LDPSA is a high-specification Fan Coil Thermostat 4-Pipe Modbus LCD from the prestigious SpaceLogic TC900 series, engineered to deliver exceptional ...
Basic Properties
Place of Origin: EU
Brand Name: Schneider
Certification: CE RoHS
Model Number: TC903-3A4LDPSA
Trading Properties
Minimum Order Quantity: 5
Payment Terms: T/T,Western Union
Product Description
TC903-3A4LDPSA Schneider Fan Coil Thermostat 4-Pipe Modbus LCD White Professional Integrated HVAC Unit
Product Overview

The Schneider Electric TC903-3A4LDPSA is a high-specification Fan Coil Thermostat 4-Pipe Modbus LCD from the prestigious SpaceLogic TC900 series, engineered to deliver exceptional reliability, precision, and operational efficiency for modern intelligent building environments.

As part of the globally recognized EcoStruxure ecosystem, this device represents the integration of advanced engineering standards with high-durability hardware, ensuring seamless coordination of critical building services such as climate management, occupancy-based control, and system automation.

Designed for professional installation in luxury hotels, commercial office towers, and high-end residential projects, the TC903-3A4LDPSA enables building operators to implement modular control architectures that reduce energy overhead while maximizing occupant comfort.

Built with sustainable, halogen-free materials and future-ready technology, this device is a critical building block for achieving high-performance infrastructure certifications such as LEED, WELL, and Green Premium. It is specifically engineered for 24/7 mission-critical operations in sophisticated smart building infrastructures.

Technical Specifications
Product Model TC903-3A4LDPSA
Product Range Schneider Electric SpaceLogic TC900
Communication Protocol Modbus RTU RS-485
Interface Configuration 4-pipe FCU, 3-speed Fan, Modbus
Rated Operating Voltage 90-240 V AC
Power Supply Bus-powered, Auxiliary supply, or Mains voltage (model specific)
Functional Logic & Sensing LCD display, Modbus, White finish, precise PID logic
Network Topology Support Supports standard star, daisy-chain, and branch-based bus architectures
Wiring Interface Maintenance-free terminal blocks or industrial screw terminals for secure connectivity
Operating Temperature 0°C to 50°C (standard indoor operational range)
Ingress Protection IP20 / IP30 (Indoor mounting environments)
Housing Material Halogen-free, Flame-retardant industrial grade polycarbonate
Certifications CE Marked, RoHS, REACH, UL Listed, Green Premium Environmental Data, BTL Listed (for protocol models)
Application Scenarios
The workhorse for commercial office towers with 4-pipe hydronic systems.
Product Details
Highlight:

Schneider fan coil thermostat Modbus

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4-pipe fan coil controller LCD

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HVAC unit thermostat professional

Loadtype: Resistive And Inductive
Outputtype: Relay Output
Indicator Function: Power, Signal Transmission
Load Capacity: Max 100W Per Channel
Channel Configuration: 16 Independent Control Channels
Controlmethod: Electrical And Manual Override
Mounting Type: DIN-Rail Mounting

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