Product details
Danfoss MCX20B2 Programmable Controller | 20 Relays | 24V AC/DC
Product Description:
The Danfoss MCX20B2 is a powerhouse programmable solution designed for large-scale engineering projects that demand high I/O density. With 20 integrated relays, this unit can centrally manage entire chiller plants, massive air handling units (AHUs), or multi-stage industrial processes from a single device. In the UAE, where system complexity is often high to ensure climate stability, the MCX20B2 offers the flexibility to create sophisticated control logic via C-language or graphical tools. Its high input count and dual communication ports (CANbus and RS485) allow it to act as the primary brain of a cooling system, ensuring seamless integration and high energy efficiency in the Middle East’s demanding environment.
Key Features & Benefits:
- Maximum Relay Count: 20 Relays provide unrivaled switching capacity, reducing the need for multiple expansion modules in UAE control panels.
- Extensive I/O Capability: Features 16 analog inputs and 6 analog outputs for comprehensive monitoring of temperature, pressure, and humidity.
- Advanced Programmability: Allows for the development of bespoke control strategies tailored to specific high-performance cooling requirements.
- Network Ready: Built-in CANbus and RS485 (Modbus RTU) for high-speed data exchange and Building Management System (BMS) integration.
- Industrial Grade Reliability: Built for 24/7 operation in harsh industrial environments with standard DIN-rail mounting.
Technical Specifications :
| Specifications | Value |
| Manufacturer | Danfoss |
| Product Model | MCX20B2 |
| Code Number | 080G0330 |
| Supply Voltage | 24V AC / DC |
| Relay Outputs | 20 Relays |
| Analog Inputs | 16 (NTC, PT1000, 0-10V, 4-20mA) |
| Analog Outputs | 6 (0-10V / PWM) |
| Communication | CANbus, RS485 (Modbus RTU) |
| Mounting | DIN Rail (10-module width) |
FAQs:
- Q: Is there a version of the MCX20B2 with an integrated display?
- A: This specific code (080G0330) is the base unit. Versions with an integrated LCD are available, or it can be paired with a remote MMIGRS2 display.
- Q: How many compressors can I control with 20 relays?
- A: In a UAE rack system, you could easily control a full rack of 6-8 compressors along with all fans, oil management, and safety components.
- Q: Does it support remote monitoring?
- A: Yes, through its RS485 port, it can be linked to a gateway for web-based monitoring or connected directly to a local BMS.




