Danfoss 080G0057 MCX20B Programmable HVAC/R Controller

Product Overview

Danfoss 080G0057 MCX20B is a programmable electronic controller developed for complex refrigeration, air-conditioning and HVAC/R applications. It provides 20 digital outputs and supports control programs involving compressors, fans, pumps, valves, alarms and other field devices.

This order number is a 24 V version with LCD display and communication support for CANbus and Modbus. The MCX20B is a discontinued legacy controller, but it remains valuable for maintenance and replacement of existing machines that were originally designed around the MCX platform.

Main Features

• Exact Danfoss order number: 080G0057
• Legacy MCX20B programmable controller
• 20 digital or relay outputs
• 24 VAC/DC power supply
• CANbus and Modbus communication
• Integrated LCD operator display
• Real-time clock functionality
• DIN-rail installation
• Designed for programmable refrigeration and HVAC/R equipment
• High maintenance and replacement value for installed systems

Technical Specifications

Compatible System and Applications

The MCX20B is suitable for legacy refrigeration and HVAC/R equipment using custom MCX application software. Typical installations may include chillers, compressor systems, air-handling equipment, heat pumps, industrial refrigeration packages and OEM control panels.

Compatibility depends on more than the controller family. The replacement must match the supply voltage, communication interface, I/O configuration, connector arrangement, firmware and machine-specific application program.

Maintenance and Replacement Notes

Danfoss 080G0057 has been discontinued. It should primarily be treated as a maintenance and replacement product for an existing MCX20B installation. Do not replace it only according to the MCX20B family name.

Before ordering, confirm order number 080G0057, nameplate information, supply voltage, display configuration, communication network, connector set and installed application software. Migration to an MCX20B2 controller may require program conversion, wiring checks and commissioning work.

Related Models

Related models include MCX20B2, MCX15B, MCX15B2, MCX152V and MCX061V. Other MCX20B order numbers may use different power supplies, packaging formats, communication arrangements or display configurations.

Inquiry and Supply Notes

Please send the original nameplate photograph, machine application and required condition when requesting a quotation. Availability may include unused old stock or replacement-market units. Hardware condition, software inclusion, connector availability and delivery time must be confirmed separately.

Company Profile

DF Automatic supplies industrial automation spare parts, control system components, and replacement parts to customers worldwide.

Our product range covers PLC modules, servo drives, servo motors, variable frequency drives, HMI panels, industrial sensors, pneumatic components, hydraulic components, power supplies, electrical control devices, and industrial communication modules.

These products are used in CNC machinery, packaging equipment, robotics, production lines, water treatment systems, machine rebuilding, equipment maintenance, and other industrial automation applications.

We assist customers with model identification, part number verification, replacement part sourcing, quotation preparation, packing confirmation, and international shipping coordination. Before quotation, customers may provide complete model numbers, order codes, product photos, nameplate information, or technical specifications for verification.

For discontinued, legacy, or difficult-to-source components, we can also help check possible replacement options based on the exact model, hardware configuration, electrical specifications, communication interface, and application requirements.

Our objective is to provide clear product identification, practical sourcing support, reliable order handling, and efficient communication for industrial automation maintenance and spare parts procurement.

Service Scope

• PLC modules, controllers, and control system components  

• Servo drives, servo motors, and motion control components

• Variable frequency drives and AC drives

• HMI operator panels and industrial displays

• Industrial sensors, pressure measurement devices, load cells, and related components

• Pneumatic valves, cylinders, fittings, and accessories

• Hydraulic pumps, valves, cylinders, and control components

• Industrial power supplies, relays, contactors, circuit breakers, cables, and connectors

• Industrial Ethernet, fieldbus, and communication modules

• Legacy and discontinued automation spare parts

• Replacement part identification and model cross-checking

Industries Served

Our products and sourcing services support a wide range of industrial applications, including:

• CNC machinery

• Packaging machinery

• Robotics and automated equipment

• Factory automation and production lines

• Water treatment systems

• Machine building and equipment rebuilding

• Industrial maintenance and repair

• OEM equipment users

• System integrators

• Maintenance companies

• Industrial distributors

Why Choose DF Automatic

Model and Part Number Verification

We check model numbers, order codes, nameplate information, and product specifications before quotation to reduce the risk of incorrect part selection.

Support for Legacy and Discontinued Parts

We assist with sourcing older automation components and checking compatible or replacement options where applicable.

Efficient Quotation Support

Customers can send individual models or complete spare parts lists for quotation and availability checking.

International Order Coordination

We support packing confirmation, shipment preparation, and international logistics coordination according to order requirements.

Flexible Procurement Support

We can handle single replacement parts, urgent maintenance requirements, and larger industrial spare parts purchase lists.

Inquiry Information

For faster product confirmation and quotation, please provide as much of the following information as possible:

• Complete model number

• Part number or order code

• Product quantity

• Product photos

• Nameplate photos

• Required condition

• Technical specifications

• Existing machine or system information

• Destination country or shipping requirements

Important Note

Product availability, condition, price, lead time, configuration, and replacement options depend on the exact model number, part number, order quantity, technical requirements, and current supply conditions.

For products with multiple hardware versions, firmware versions, electrical specifications, communication options, or regional variants, the complete nameplate and order code should be confirmed before purchase.