Discover the Roc131+GW30 multi-circuit measurement solution. Modular design, plug-and-measure installation, and Modbus-RTU upload for production lines and building sub-metering.

Figure 1:Roc131+GW30 Plug-and-Measure Installation Demo

In today’s industrial and commercial power distribution environments, electrical cabinet space continues to shrink while the number of circuits requiring monitoring grows. To address this challenge, the Roc131+GW30 multi-circuit measurement solution offers a compact, flexible, and easy-to-deploy alternative to traditional metering methods.

Traditional multi-circuit measurement approaches often require one meter per circuit, consuming significant DIN rail space. They also involve complex wiring and high installation costs, making them unsuitable for compact distribution panels, precision production lines, and distributed energy monitoring applications.

The Roc131+GW30 multi-circuit measurement solution combines high-precision energy acquisition with flexible data aggregation. It enables users to monitor multiple critical circuits—even in space-constrained electrical enclosures.

Solution Architecture: Designed for Synergy and Efficiency

This solution consists of two core components: the Roc131 Multi-Circuit Measurement Module and the GW30 Data Acquisition Gateway.

GW30: As a front-end data acquisition device, the GW30 collects raw current  from each circuit and transmits the acquired data to the Roc131 for further processing. The GW30 focuses on accurate signal acquisition and reliable data transmission.

Roc131: A multi-circuit measurement module that receives data from the GW30, performs energy calculations and data processing, and uploads the results via Modbus-RTU to SCADA, PLCs, or cloud platforms.

Three Core Advantages

1. Compact Footprint, Multiple Circuits

Traditional metering solutions typically require one meter per circuit, consuming significant DIN rail space. The Roc131 features a modular, expandable design. Each module is a 1P unit that monitors a single circuit. Depending on the number of circuits to be measured, users can freely select and combine the required number of modules. This flexible architecture minimizes space occupation inside electrical panels while adapting to various application needs. Whether it’s rotary table motors, main line power, lighting, or auxiliary circuits, all can be monitored by combining the appropriate number of Roc131 modules.

*Figure 2: Roc131 modules—the building blocks of this multi-circuit measurement solution.*

2. Tool-Free Installation, Simplified Deployment

The Roc131 works with split-core current transformers or flexible Rogowski coils, which can be directly clamped onto existing cables without disconnecting circuits or removing busbars. This is especially advantageous for retrofit projects on live electrical systems, significantly reducing downtime, lowering installation risks, and minimizing labor costs.

*Figure3: Plug-and-measure installation—no wiring, no downtime.*

3. Centralized Data, Flexible Communication

The GW30 acts as a front-end data acquisition device, collecting raw current from each circuit and transmitting the data to the Roc131 for processing. The Roc131, equipped with built-in Ethernet and RS485 ports, handles energy calculations and data processing, and uploads the results via Modbus-RTU to SCADA, PLCs, or cloud platforms. For extended connectivity, optional 4G or Wi-Fi modules can be added to enable remote cloud-based management.

Typical Applications

Production Line Power Monitoring

On automated production lines, energy data from different workstations (such as rotary tables, lifts, and main drives) is critical for optimizing cycle times and calculating operational costs. The GW30 collects current signals from key circuits such as W28/W29/W30 Rotary Table Drives, W30 Main Line Drive, and Unloading Lift Drive, while the Roc131, installed compactly inside control cabinets, captures voltage signals from these circuits, processes the combined data, and uploads the results via Modbus-RTU to MES or energy management systems for line-level energy visualization.

*Figure 4: Production line monitoring using the Roc131+GW30 multi-circuit measurement solution.*

Distribution Panel Retrofits

 For existing distribution panels where additional circuit-level metering is required, traditional approaches often face space constraints and wiring difficulties. The Roc131+GW30 solution, featuring compact form factors and clamp-on current sensors, can be easily added to existing panels without altering the original layout, enabling new multi-circuit monitoring capabilities.

Commercial Building Sub-Metering

In commercial complexes, different loads such as lighting, HVAC, elevators, and general outlets require separate measurement. Roc131 modules can be flexibly deployed in floor-level distribution rooms, with the Roc131 processing the data and uploading it to building automation systems, supporting granular energy management.

*Figure 5: Floor-level deployment for building sub-metering applications.*

Quality and Reliability

Both the Roc131 and GW30 are designed to meet industrial-grade standards and carry CE certification, ensuring reliable operation in complex electromagnetic environments. They feature wide operating temperature ranges, making them suitable for applications ranging from factory floors to outdoor electrical enclosures.

About the Company

We are a technology company with years of dedicated experience in energy metering and industrial IoT solutions. Our capabilities span in-house R&D, manufacturing, and localized customer support. From core metering chips to communication protocol stacks, every aspect is optimized by our internal teams to ensure product reliability, stability, and continuous improvement.

Our products serve a wide range of industries, including manufacturing, infrastructure, commercial real estate, and renewable energy, and are part of the global supply chain for several internationally recognized companies. We understand that every project is unique, and we are committed to providing flexible product customization and technical support tailored to our customers’ specific needs.

Start Your Journey to Precise Multi-Circuit Measurement

Facing increasingly compact electrical spaces and growing demands for circuit-level monitoring, the Roc131+GW30 offers a simple, efficient, and scalable solution. Without major modifications, you can gain detailed energy visibility into every critical circuit, providing reliable data for energy optimization, cost control, and equipment maintenance.

Contact us today to learn more about how the Roc131+GW30 solution can meet your project requirements. Whether you are planning a new installation or upgrading an existing system, our team is ready to provide professional support and tailored recommendations.

Roc431-S Smart IoT Meter: Precision Energy Monitoring with Unmatched Connectivity and Storage

In today’s rapidly evolving industrial and commercial landscape, energy efficiency is no longer just a cost-saving measure — it is a strategic imperative. From manufacturing plants and data centers to commercial buildings and renewable energy installations, the ability to monitor, analyze, and act upon real-time energy data has become essential for staying competitive. Yet many organizations still struggle with fragmented monitoring systems, limited data visibility, and complex integration challenges.

Enter the Roc431-S Smart IoT Meter — a compact, rail-mounted three-phase energy meter engineered to deliver precise measurements, robust connectivity, and enterprise-grade data management in a single, space-saving package.

 

Designed for Demanding Environments

The Roc431-S is purpose-built for modern energy monitoring applications. It supports a wide range of voltage configurations, including three-phase 230/400 V, single-phase 120/240 V, 277/480 V, and 230 V systems, making it suitable for diverse global installations. Whether you are monitoring secondary sides in medium- or high-voltage substations or directly wiring into low-voltage distribution panels, the Roc431-S adapts seamlessly with support for 3P4W, 3P3W, 1P3W, and 1P2W wiring systems.

Three Core Advantages That Set It Apart

1. Powerful Data Recording with Local Storage

One of the most distinguishing features of the Roc431-S is its built-in 32GB storage capacity. While many meters rely entirely on continuous cloud connectivity to retain historical data, the Roc431-S empowers users with onboard logging capabilities. It supports programmable interval recording and waveform capture, allowing engineers to analyze load profiles, detect power quality issues, and troubleshoot anomalies without the risk of data gaps. This is especially valuable in environments where network connectivity may be intermittent or where long-term historical analysis is required.

2. Extensive Connectivity and Expandability

The Roc431-S comes equipped with 4 digital inputs and 4 digital outputs as standard, enabling direct connection to alarms, pulse counters, and control devices. But its flexibility does not stop there. An expansion slot allows for customizable add-on modules — including zero-sequence current monitoring, temperature sensing, or additional input channels — ensuring the meter can grow with your application needs.

On the communication front, the meter is future-ready. It includes both RJ45 Ethernet and RS485 ports as standard, supporting Modbus-TCP and Modbus-RTU protocols. This dual-communication capability ensures seamless integration with SCADA systems, building management platforms, PLCs, and cloud-based energy management software, making it a versatile component for new installations or retrofit projects.

3. Flexible Power Supply Options

Installation environments vary widely, and the Roc431-S is designed to accommodate them. The meter is available in two power supply variants: 95–265 VAC for standard AC installations, and 5–36 VDC for low-voltage DC environments. For applications requiring even greater flexibility, an external expansion module can support 90–528 VAC for the main circuit, along with an auxiliary AC power supply — a feature particularly useful in industrial settings where voltage conditions may fluctuate.

Where the Roc431-S Excels

The versatility of the Roc431-S makes it suitable for a broad spectrum of applications:

Commercial Buildings: Perfect for tenant sub-metering, HVAC monitoring, and whole-building energy optimization.

Industrial Facilities: Provides machine-level energy tracking, load profiling, and power quality analysis to support efficiency initiatives.

Data Centers: Delivers high-accuracy metering with waveform capture to help optimize Power Usage Effectiveness (PUE).

Renewable Energy Systems: Ideal for monitoring inverter output, grid interface points, and compliance reporting.

Medium- and High-Voltage Substations: Serves as a reliable secondary-side metering solution with remote communication capabilities.

Quality You Can Rely On

Every Roc431-S meter is manufactured under strict quality controls and carries CE certification, ensuring compliance with international standards for safety and performance. The compact rail-mount design simplifies installation in crowded electrical panels, reducing both labor time and space requirements.

About the Company

Behind the Roc431-S is a company with years of dedicated experience in the field of energy metering and industrial IoT solutions. We specialize in developing reliable, intelligent, and cost-effective monitoring equipment that empowers businesses to take control of their energy usage. Our products serve a wide range of industries — from manufacturing and infrastructure to commercial real estate and renewable energy — across global markets.

What sets us apart is our commitment to in-house research and development, rigorous quality testing, and localized customer support. We believe that a meter is only as good as the results it delivers, and we work closely with system integrators, facility managers, and utility operators to ensure every installation meets the highest standards of performance and reliability.

Ready to Take Your Energy Monitoring to the Next Level?

In a world where energy data drives decisions, you need a metering solution that delivers accuracy, flexibility, and reliability. The Roc431-S Smart IoT Meter combines powerful local storage, extensive connectivity, and scalable expandability in a compact, easy-to-install package — giving you the insights you need to optimize operations, reduce costs, and meet sustainability goals.

Contact us today to learn more about how the Roc431-S can transform your energy monitoring infrastructure. Whether you are planning a new installation or upgrading an existing system, our team is ready to help you find the right solution for your unique requirements.