In today‘s industrial and commercial power distribution systems, the demand for circuit‑level energy monitoring is growing rapidly – yet panel space is becoming increasingly scarce. Traditional metering solutions typically require one meter per circuit, consuming excessive DIN rail space, demanding power shutdowns, complex rewiring, and high installation costs. For retrofit projects, dense distribution panels, or drawer‑type switchgear, these challenges are even more critical.
The Roc132 is a high‑performance energy meter designed specifically for multi‑circuit monitoring. With an ultra‑compact 1P (18mm) width, non‑invasive Rogowski coil or split‑core CT installation, and the ability to cascade multiple units sharing a single voltage reference, the Roc132 allows you to accurately measure dozens of circuits without modifying existing layouts or interrupting power.
Three Core Advantages – Told by Numbers
1. 1P Width – Save 60–80% of DIN Rail Space
Each Roc132 module occupies only 18mm (1P) of DIN rail space, while conventional three‑phase meters typically require 4P to 8P. For a project monitoring 10 circuits, the Roc132 saves over 180mm of rail length – turning an impossible retrofit into a simple installation. For space‑critical applications like drawer‑type switchgear or prefabricated substations, this is often the only feasible solution.
2. Non‑Invasive Installation – Reduce Labor Cost by >60%
The Roc132 works with flexible Rogowski coils (100A to 6000A) or split‑core CTs (≤100A). These sensors can be clamped directly onto cables, copper bars, or busbars – no circuit disconnection, no busbar removal, no power shutdown. Retrofits can be completed while production lines keep running, eliminating downtime, reducing electric shock risks, and cutting installation time to one‑third of conventional methods.
3. Cascading Design – One Voltage Connection for Dozens of Circuits
When multiple Roc132 meters are mounted side by side, a simple MC cascading component transmits the voltage reference (L1/L2/L3/N) and the RS485 bus from one meter to the next. This means: no matter how many circuits you monitor, you only need to connect voltage wires once. No more parallel wiring for each meter, no more dozens of terminal blocks – wiring errors approach zero.
Key Specifications – What the Numbers Mean for You
| Parameter | Value | What It Delivers |
|---|---|---|
| Module width | 1P (18mm) | 10 circuits take only 180mm – saves >50% rail space vs. conventional meters |
| Current range | 100A / 300A / 600A / 1000A / 3000A / 6000A | One solution covers everything from branch circuits to main feeders |
| Sensor type | Rogowski coil or split‑core CT | No power down, no rewiring – zero‑downtime retrofits |
| Active energy accuracy | Class 0.5S (IEC 61557‑12) | Billing‑grade accuracy for cost allocation and energy verification |
| Harmonic analysis | 1st to 51st order (percentage & magnitude) | Diagnose power quality issues from VFDs, LEDs, UPS, and other non‑linear loads |
| Operating temperature | -25°C to +70°C | Reliable in outdoor cabinets and high‑temperature workshop environments |
| Communication | RS485 Modbus‑RTU | Plug‑and‑play integration with PLCs, SCADA, gateways, and energy management systems |
Typical Applications
Drawer‑Type Low‑Voltage Switchgear
Space inside drawer compartments is extremely limited, making traditional meters impossible to install. The Roc132’s 1P width fits easily on the rear panel or side plate, while flexible Rogowski coils clamp directly onto the primary busbars – no disassembly required. Multiple drawers share a single voltage reference via the cascading component, and all data is collected centrally over RS485. This is currently the most space‑efficient drawer monitoring solution available.
Production Line Machine Monitoring
An automated production line typically includes rotary tables, lifts, conveyors, robots, and other workstations. Install one Roc132 per machine, cascade them along the DIN rail, and connect voltage only once. Real‑time current, power, and energy data flow into the PLC or MES via Modbus, helping production managers identify inefficient equipment, optimize cycle times, and calculate product‑level energy costs.
Commercial Building Sub‑Metering
In floor‑level distribution rooms, circuits for lighting, HVAC, elevators, general outlets, and fan coils need separate measurement. The Roc132’s small footprint allows retrofitting inside existing panels without any enclosure modification. The 51st‑order harmonic measurement also helps diagnose neutral overheating or transformer issues caused by non‑linear loads such as VFDs and LED drivers.
Data Center PDU Monitoring
Data centers demand continuous operation and maximum space utilization. The Roc132, paired with flexible Rogowski coils, can be added to PDU input or output busbars without any power interruption. Class 0.5S accuracy provides trustworthy data for PUE calculation, the cascading design reduces internal wiring clutter, and RS485 output integrates seamlessly with DCIM software.
Quality and Reliability
The Roc132 is designed and manufactured to meet IEC 61557‑12 (performance class PMD‑II/DD/K70/1) and carries CE certification. Key reliability features include:
- Measurement category CAT IV – suitable for distribution side applications
- Pollution degree 3 – designed for industrial dust environments
- Wide operating temperature (-25°C to +70°C) – no concerns about high temperatures inside electrical panels
- Factory full‑range calibration – guaranteed 0.5S accuracy over the entire current range
About the Company
We are a technology company with years of dedicated experience in energy metering and industrial IoT solutions. Our in‑house capabilities cover everything from core metering chips to communication protocol stacks. Our product portfolio includes Rogowski coils, split‑core CTs, single‑circuit and multi‑circuit energy meters, gateways, and cloud platforms, serving industries such as manufacturing, infrastructure, commercial real estate, and renewable energy. We understand that every project is unique, and we are committed to providing flexible product customization and professional technical support.
Start Your Multi‑Circuit Monitoring Upgrade Today
Facing tighter electrical spaces and growing demands for circuit‑level visibility, the Roc132 offers a simple, efficient, and scalable solution. No power shutdowns, no major modifications, no high upfront investment – just reliable, accurate energy data for every critical circuit, enabling energy optimization, cost control, and predictive maintenance.
Contact us today to learn how the Roc132 can meet your project requirements. Whether you are planning a new installation or retrofitting an existing system, our team is ready to provide professional advice and tailored recommendations.