SmarDen’s 3 Phase IoT Contactor Controller is an industrial-grade device designed for reliable switching and real-time monitoring of 3-phase electrical loads. Built for DIN-rail panel installation, it combines accurate per-phase energy measurement, relay-based contactor control, and dual connectivity through WiFi and GSM in one compact unit.
Powered by an STM32 microcontroller architecture, it measures voltage, current, power, energy consumption, frequency and power factor across all three phases, converting conventional electrical panels into connected, intelligent power control systems.
SmarDen’s 3 phase IoT contactor controller enables remote automation and intelligent monitoring of heavy electrical equipment such as motors, pumps, compressors, and industrial machinery. Instead of relying on manual panel operation, it allows operators to switch loads remotely while tracking real-time electrical parameters.
Traditional contactor systems are limited to basic switching and provide no visibility into voltage, current, or energy consumption. By combining control, monitoring, and communication in one device, a 3 phase IoT contactor controller converts conventional panels into connected industrial control systems.
The IoT Contactor Controller integrates:
Dual relay outputs for contactor operation
Accurate 3-phase energy monitoring
WiFi and GSM connectivity
Manual and automatic switching logic
Remote communication via SMS, HTTP, and MQTT
It combines switching, measurement, and communication into a single industrial IoT node.
Energy monitoring is critical for reliable industrial operations. The 3 phase IoT contactor controller continuously measures and processes electrical parameters across all three phases, giving operators clear insight into load behavior and system performance.
Unlike basic relay controllers, this system provides detailed per-phase electrical data including:
This enables accurate performance tracking and better operational decision-making across industrial and commercial loads.
Reliable contactor control is critical when managing high-load 3-phase equipment. The 3 phase IoT contactor controller is engineered to safely operate external contactors while maintaining electrical isolation and industrial-grade performance.
It acts as the control interface between digital automation logic and physical power switching.
The controller includes two onboard SPDT relay outputs designed for safe contactor operation.
Electrical Ratings:
It supports both manual and automatic switching logic, allowing flexible automation strategies within industrial control panels.
The 3 phase IoT contactor controller is engineered for reliable communication in real-world industrial environments where network conditions can vary significantly. With built-in support for both WiFi and GSM, it ensures uninterrupted remote access whether deployed inside a factory network, a commercial facility, or a geographically distributed infrastructure site.
This dual-connectivity design eliminates dependency on a single communication channel and increases operational reliability.
By maintaining continuous connectivity, the controller enables real-time data transmission, remote load control, and centralized monitoring without requiring physical panel access.
It supports scalable deployment across multiple panels or locations, making it suitable for both standalone automation and integrated industrial IoT environments.
Supported communication protocols include:
This allows integration with IoT platforms, remote dashboards, and centralized monitoring systems.
This 3 Phase IoT Contactor Controller is designed to function as an intelligent node within SmarDen’s scalable industrial IoT Platform. It does not operate as an isolated switching device, but as part of a connected infrastructure layer that links electrical panels to centralized monitoring and control systems.
By transmitting real-time operational and electrical data through WiFi or GSM using HTTP and MQTT protocols, the controller becomes a digital bridge between field-level equipment and higher-level management systems. This enables coordinated control, visibility, and performance optimization across distributed installations.
When deployed across multiple panels or facilities, it enables:
Centralized Monitoring of Distributed 3-Phase Loads
View electrical performance and load status across sites from a single interface.
Remote Diagnostics and Event Visibility
Detect abnormal conditions, voltage fluctuations, or operational issues without physical inspection.
Data-Driven Energy Management
Use accurate per-phase energy data to identify inefficiencies and optimize consumption.
Scalable Infrastructure Expansion
Add additional controllers across panels or locations without redesigning the system architecture.
Instead of isolated panels, organizations gain connected electrical infrastructure capable of scaling with operational growth.
The 3 phase IoT contactor controller is built on a robust industrial hardware foundation designed for stability, electrical safety, and long-term continuous operation.
Every internal component is selected to ensure reliable performance inside electrical control panels where voltage fluctuations, load variations, and environmental stress are common. The architecture prioritizes isolation, regulated power delivery, and protection mechanisms to safeguard both the controller and connected equipment.
STM32 Dual-Core Microcontroller Platform
Provides stable processing capability for real-time energy measurement, control logic, and communication handling.
Isolated AC-DC SMPS Power Design
Ensures safe power conversion and electrical separation between high-voltage input and low-voltage control circuits.
5V DC Output with 3.3V Regulated MCU Supply
Maintains stable voltage levels for consistent microcontroller and communication module performance.
Over-Voltage, Over-Current, and Short-Circuit Protection
Protects internal electronics from electrical disturbances and fault conditions.
External Fuse/MCB Recommended for Inductive Loads
Adds an additional safety layer when controlling motors and other inductive equipment.
The device is engineered for continuous operation inside industrial electrical panels, delivering reliable performance in demanding environments.
The 3 phase IoT contactor controller is engineered specifically for installation inside industrial electrical panels. Its compact form factor, DIN-rail compatibility, and fire-retardant enclosure make it suitable for integration into standard control systems without requiring structural modification.
The design prioritizes safety, durability, and ease of installation in real-world panel environments.
Gaurang MD-157 Modular DIN-Rail Enclosure
DIN 43 880 Mounting Standard
Compatible with MCB Panels
Dimensions: 90 × 70 × 60 mm
ABS/Polycarbonate UL94-V0 Fire-Retardant Housing
IP20 Finger-Safe Protection
Operating Conditions
Designed for reliable operation across industrial environments:
Operating Temperature: 5°C to +70°C
Humidity: 10%–90% RH (non-condensing)
The 3 phase IoT contactor controller is designed for high-load environments where reliable switching, electrical isolation, and real-time monitoring are essential.
Its combination of industrial relay capacity and IoT-based communication makes it suitable for both standalone panel installations and distributed infrastructure deployments.
Because it integrates control and energy visibility in one device, it fits naturally into:
Industrial Motor Control Panels
Remote switching and monitoring of 3-phase motors used in manufacturing and process environments.
Pump Automation Systems
Intelligent operation of borewell, irrigation, and process pumps with real-time electrical insight.
Commercial HVAC Load Control
Centralized control and monitoring of high-load HVAC systems in buildings and facilities.
Distributed Energy Monitoring
Multi-site tracking of 3-phase electrical performance and consumption.
Remote Infrastructure Management
Control and visibility for equipment deployed in geographically distributed or hard-to-access locations.
Selecting the right 3 phase IoT contactor controller is not just about switching capacity. In industrial environments, reliability, communication flexibility, electrical protection, and long-term scalability matter just as much as relay ratings.
A controller should not only operate loads, but also provide visibility, integration capability, and operational confidence.
This system delivers:
True 3-Phase Energy Intelligence
Continuous per-phase monitoring of voltage, current, power, energy consumption, frequency, and power factor.
Industrial Relay Ratings
Designed to safely operate high-load 3-phase contactors with proper electrical isolation.
WiFi and GSM Flexibility
Dual connectivity ensures reliable communication across both local and remote installations.
Protocol-Level Communication
Supports SMS, HTTP, and MQTT for integration into IoT platforms and centralized systems.
Panel-Ready Design
DIN-rail mounting with industrial-grade enclosure suitable for electrical control panels.
Integrated Protection Architecture
Built-in over-voltage, over-current, and short-circuit protection for enhanced reliability.
It is built for industrial reliability.
If your electrical infrastructure still depends on manual switching, isolated panels, or limited performance visibility, you are operating without real-time control. In high-load environments, that lack of insight increases downtime risk, maintenance costs, and energy inefficiency.
SmarDen’s 3 Phase IoT Contactor Controller modernizes conventional contactor panels by combining reliable switching, accurate 3-phase energy monitoring, and dual connectivity in one integrated system. It enables remote access, operational transparency, and scalable deployment across facilities without redesigning your existing electrical infrastructure.
Whether deployed in a single industrial panel or across multiple distributed sites, it delivers connected control, energy intelligence, and long-term reliability in a compact DIN-rail form factor.
Built for high-load 3-phase environments, the 3 Phase IoT Contactor Controller combines secure contactor switching with intelligent monitoring and WiFi/GSM connectivity. It transforms traditional panels into connected, data-driven control infrastructure without altering existing electrical architecture.
A 3 phase IoT contactor controller is a device that enables remote switching and real-time monitoring of 3-phase electrical loads such as motors, pumps, and industrial machinery. It combines relay-based control, energy measurement, and network connectivity in one panel-mounted unit.
A regular contactor only switches power. SmarDen's phase IoT contactor controller adds remote access, energy monitoring, communication capability, and automation logic. It allows operators to control and monitor loads without being physically present at the panel.
Yes. The hardware supports both WiFi and GSM connectivity. WiFi is suitable for factory and building networks, while GSM ensures reliable communication in remote or distributed installations.
The controller measures key 3-phase parameters including:
Line-to-Line Voltage
Line-to-Neutral Voltage
Phase Current
Active Power per Phase
Total Energy Consumption (kWh)
Frequency
Power Factor
The onboard relays are rated for:
30A @ 250V AC (Resistive)
10A @ 250V AC (Inductive)
They are designed to safely operate external contactors for heavy 3-phase loads.
Yes. The controller supports communication via SMS, HTTP, and MQTT, allowing integration into centralized monitoring systems and scalable industrial IoT environments.
Yes. It is designed for DIN-rail mounting and is compatible with standard MCB panels. The enclosure is fire-retardant and built for operation in industrial temperature ranges.
Typical applications include:
Industrial motor control panels
Pump automation systems
Commercial HVAC load control
Distributed infrastructure management
Energy monitoring environments
