IoT Pro
Energy Module
Retrofit, CT-based energy and power quality monitoring for single-phase and three-phase electrical systems designed to instrument existing switchboards, feeders, and equipment circuits without replacing installed infrastructure, and built on the IoT Pro industrial hardware architecture.
Product Code: IOTPRO-ENERGY-MODULE
Product Overview
The IoT Pro Energy Module is a retrofit electrical measurement module designed to acquire voltage and current from existing electrical systems (via voltage taps and current transformers) and convert those signals into structured, auditable electrical measurements for software platforms.
It is intended for deployment at real installation points and interfaces with existing switchgear such as main incomers, distribution boards, sub-feeders, and equipment circuits where visibility into consumption, runtime behaviour, and power quality is required.
From a system architecture perspective, the module functions as a dedicated electrical data acquisition node that provides deterministic behaviour and predictable data structures suitable for:
Energy management and cost allocation
Equipment and process monitoring
Power quality investigation, event correlation, and predictive maintenance
Multi-site deployments where integrations must remain stable over time
Typical Installation Points
The IoT Pro Energy Module is typically installed at electrical nodes that represent meaningful cost, risk, or operational impact. This module is particularly suited to phased rollouts, start with the main feeder, then expand to the circuits that drive cost, downtime, or dispute.
Main Incomers
Utility Incomers / MDB / MSB
Sub-Distribution Panels
SMDBs / MCCs / Critical Feeders
High-Load Equipment
Compressors / HVAC / Pumps / Boilers
Cold-Chain Power Feeds
Cold Rooms / Blast Chillers / Freezers
Multi-Tenant & Building Feeders
Tenant Supplies / Common-Area Feeders
UPS & Generators
Data Rooms / Telecom / NOC Sites
EV Charging Stations
EV Feeders / High-Varience Loads
Measurement & Functional Capabilities
The IoT Pro Energy Module is implemented as a CT-operated multifunction metering platform capable of measuring consumption, electrical loading, and power quality parameters commonly required for industrial analysis and billing-grade monitoring.
Electrical Measurement Interface
The module acquires:
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Voltage via fused voltage tapping 3-Phase 4-Wire or 3-Phase 3-Wire systems (L-N / L-L as applicable)
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Current via external current transformers (CTs)
The embedded metering engine is based on a CT-operated multifunction meter architecture commonly used for 3-phase monitoring, including MID-certification.
Metering & Power Quality Parameters
Typical parameters available on this class of metering engine include:
Current
Power
Voltage
Accumulation
Harmonics
Current
Power
Voltage
Accumulation
Harmonics
Current Measurement (via External CTs)
Current Sensor Type | Split-core current transformers |
Supported CT Ranges | 100 A / 250 A / 500 A / 1000 A / 2000 A |
Current Measurement Type | Three phase current (per phase)
Single phase current |
Current Accuracy Class | 0.5% accuracy |
Split-core CTs allow retrofit installation without disconnecting conductors, making the module suitable for live electrical panels and phased deployments.
Energy Accumulation
Import Active Energy | kWh |
Export Active Energy | kWh |
Total Active Energy | kWh |
Import Reactive Energy | kVArh |
Export Reactive Energy | kVArh |
Total Reactive Energy | kVArh |
These parameters support cost allocation, billing analysis, runtime inference, and long-term energy trend analysis.
Power, Energy & Demand Parameters
Active Power | kW |
Reactive Power | kVAr |
Apparent Power | kVA |
Power Factor | PF |
Power Maximum Demand | MD kW |
Frequency | Hz |
Voltage Measurement
Voltage Input Range | 85 VAC to 264 VAC (L–N) or equivalent voltage (L-L) |
Voltage Measurement Type | Three phase voltage to neutral or Three phase voltage line to line
Single phase voltage to neutral |
Voltage inputs are fused per phase during installation to ensure safe and compliant operation.
Harmonics & Power Quality Indicators
Voltage Total Harmonic Distortion | U%THD |
Current Total Harmonic Distortion | I%THD |
Frequency Deviation | Hz |
Power quality parameters are time-aligned with load behaviour to support root-cause analysis of equipment stress, inefficiencies, and electrical events.
Certifications & Standards (Metering Core)
MID (Billing Accuracy) | EN 50470-1 & EN 50470-3 Class B |
Metering Accuracy Standard | IEC / EN 62052-11:2003 Class 0.5s |
EMC | EN 61326-1, EN 61326-2-3 |
Low Voltage Directive (LVD) | EN 61010-1, EN 61010-2-3 |
Safety Listing | UL Listed |
Certification and accuracy classes apply to the metering core.
Channel Architecture
The IoT Pro Energy Module is designed for single-point and multi-point electrical monitoring, supporting deployments ranging from one main incomer to multiple circuits across a facility.
Typical rollout patterns:
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Start: main incomer + one or two critical feeders
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Expand: sub-distribution + high-impact equipment circuits
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Scale: multiple sites with identical integration behaviour
Where required, current transformer sizing and form factor (including split-core CTs) are selected per installation constraints and conductor ratings.
Additional I/O Interfaces
In addition to electrical metering, the hardware platform is pre-engineered to support additional sensing and control interfaces for combined or future-use deployments.
Digital Inputs
4 x Configurable Inputs
Dry Contact Inputs
Pulse Inputs
Temperature Probes (DS18B20)
Designed to monitor contact-based signals and discrete events like door status, switches, tamper contacts, equipment run/fault states, extra temperature channels, and pulse outputs from meters or sensors.
Analog Inputs
1 x 0-30 V Voltage Input
Note to self : Re-write the below
Designed to monitor contact-based signals and discrete events like door status, switches, tamper contacts, equipment run/fault states, extra temperature channels, and pulse outputs from meters or sensors.
Flexible Connectivity, One Integration Model
All communication technologies use the same IoT Pro protocol, ensuring that the network choice does not affect software integration.
This allows devices to operation on public networks, private LoRaWAN networks, and private Wi-Fi infrastructure without changing the integration model.
An optional industrial-grade GPS module can be added to any IoT Pro variant where location awareness is required.