Circutor MDC-4 Maximum Demand Controller

The Circutor MDC-4 maximum demand controller, reference M61430, is an efficient and easy-to-configure tool designed to control energy demand in electrical installations. This device stands out for its ability to manage up to four non-priority loads, which is crucial to avoid penalties on the electricity bill for exceeding the contracted power. Thanks to its advanced control and monitoring system, the MDC-4 allows for efficient energy management, significantly contributing to energy savings.

Functionality and main features

The MDC-4 is equipped with an integrated three-phase network analyser, allowing the device to measure various electrical parameters at the connection point. This system is ideal for installations where it is necessary to control the maximum demand for electrical power. Its maximum demand calculation is performed using a sliding window that uses the device's internal clock to ensure that loads connect or disconnect based on real-time energy consumption.

The electrical loads controlled by the MDC-4 are typically non-priority, and their disconnection is carried out automatically when the configured maximum demand is exceeded. In this way, the device helps keep consumption within established limits, avoiding additional costs on the electricity bill. Moreover, the device allows for the configuration of demand calculation according to active power, apparent power, or current, offering great flexibility for use in different types of installations.

User interface and output control

The controller features a two-line display with 20 characters each, showing the measured and calculated electrical variables, as well as information on the status of relay outputs and load operation time. These data are key for the user to verify and adjust the device's programming according to their needs. The device also has indicator lights that signal the status of the outputs and the CPU, providing quick and easy visual control of the device's operation.

Savings on the electricity bill

One of the main advantages of the MDC-4 is its ability to optimise electrical consumption. By managing non-priority loads, the device ensures that the contracted power is not exceeded, allowing the user to adjust their energy contract and avoid additional costs due to penalties. Furthermore, this level control (% over the contracted power setpoint) is highly effective for installations looking to reduce their electricity bill without compromising the operability of their electrical systems.

Technical specifications:

• Code: M61430
• Relay outputs: 4 relays up to 6 A for the control of non-priority loads
• Power supply: 100-240 V AC
• Measurement: Compatible with MC transformers (…/250mA)
• Size: 105 x 90 x 70 mm
• Net weight: 0.303 kg

Additional features:

• Integrated three-phase network analyser for electrical parameter measurement.
• Demand management with control of up to four non-priority loads.
• Contracted power programming to avoid penalties for excess consumption.
• Demand calculation using sliding window, with the ability to act based on active power, apparent power, or current.
• LED indicators to visualise the status of outputs and CPU operation.
• Display of electrical variables and load operation time, allowing easy verification of the device's operation.

This device becomes a comprehensive solution for optimising energy consumption in installations requiring effective demand control. The MDC-4 not only guarantees savings on the electricity bill but also ensures safe and efficient operation of electrical loads, thus protecting the installation from potential overloads or demand excesses.