Multifunction Meter (MFM) — Class 0.5S, RS485 + MQTT + WiFi, Made in India
A 3-phase multifunction energy meter (MFM) for LT panels, switchgear, sub-metering, and industrial captive plants — Class 0.5S accuracy, RS485 Modbus + Modbus TCP + MQTT + WiFi out of the box, DIN rail or 96 × 96 mm panel mount. Designed and built in Delhi NCR by the team that supplies India's energy-meter market.
At a glance
- What it is
- A 3-phase multifunction meter (MFM) — also called a trivector meter or network analyser — measuring V, I, kW, kVA, kVAr, PF, kWh / kVAh / kVArh, demand, and harmonics on every phase.
- Best for
- LT panel builders, switchgear OEMs, industrial sub-metering, captive power plants, ESCOs, MEP consultants, and tenant-billing buildings.
- Standards
- IEC 62053-22 Class 0.5S energy. BIS-licensed and GeM-registered for India tender procurement. Country-specific certifications on request for export.
- Programmes
- Catalogue MFMs ship with no MOQ. White-label / OEM with custom Modbus map and branding — 200-unit MOQ, 4 weeks from PO.
A Cloud-Native MFM for LT Panels and Industrial Sub-Metering
The India panel-meter category — which includes brands like Selec, Elmeasure, Schneider, and L&T — covers the full spectrum of 3-phase MFMs used on LT panels, switchgear, and industrial sub-distribution. Titan is built for the same buyer set: electrical contractors, plant engineers, switchgear OEMs, ESCOs, and MEP consultants.
What Titan adds to the category is a cloud-native data path integrated with the meter itself. Built-in WiFi and Ethernet stream data directly to our cloud Energy Management System or any third-party MQTT broker. RS485 Modbus RTU and Modbus TCP stay live in parallel for switchgear PLC and SCADA integration. One DIN rail unit, four concurrent comms paths (RS485 Modbus, Modbus TCP, MQTT, REST), and Class 0.5S accuracy that holds across the deployment lifetime.
Used by LT panel builders, captive power plant operators, industrial submetering projects, ESCOs running M&V, and MEP consultants writing tender specs. Buy the same hardware as a standalone meter, a switchgear-integrated panel meter, or a cloud-monitored asset — same device, three deployment modes.
What the Titan MFM Does
Six capabilities that separate a cloud-native Class 0.5S MFM from a legacy Class 1.0 panel meter.
Full Parameter Set on Every Phase
V, I, kW, kVA, kVAr, PF, frequency, kWh, kVAh, kVArh, demand (kW/kVA MD), THD and individual harmonics — per phase. The full parameter set buyers expect from a 3-phase multifunction meter, in one DIN rail unit.
Class 0.5S Revenue-Grade Accuracy
IEC 62053-22 Class 0.5S — the same accuracy class utilities use for revenue billing. Readings hold inside band across the full operating range and across the deployment lifetime, so sub-billing, M&V, and EnPI numbers stay defensible.
RS485 Modbus + Ethernet + WiFi + MQTT
Titan ships RS485 Modbus RTU, Modbus TCP over Ethernet, MQTT, and WiFi simultaneously — so the same hardware can feed a switchgear PLC, an in-house SCADA, an MQTT broker, and a cloud dashboard at the same time without any additional gateway.
DIN Rail or Panel Mount
DIN rail form factor for industrial cabinets and switchgear retrofit. Panel-mount adapter for LT/HT panels using the standard 96 × 96 mm cutout. Same electronics, same accuracy, two install patterns.
Built-In Cloud Connectivity — No Gateway
Titan connects to our cloud Energy Management System directly over WiFi or Ethernet — no separate energy-server PC and no Modbus gateway in the data path between the meter and the dashboard.
Made in Delhi NCR by an Energy-Meter House
Designed and built at our Binola, Haryana facility — the same production line that supplies India's energy-meter market. BIS-licensed and GeM-registered, tender-ready for India procurement.
MFM Specifications
| Parameter | Specification |
|---|---|
| Type | 3-phase 4-wire / 3-phase 3-wire multifunction energy meter (MFM) |
| Accuracy class | Class 0.5S energy (IEC 62053-22), Class 0.5 voltage / current |
| Voltage range | 3 × 57.7/100 V to 3 × 277/480 V (PT or direct) |
| Current input | Via CT, 1 A or 5 A secondary; CT primary 10 A – 1000 A; direct-connected variants on request |
| Parameters measured | V (L-L, L-N), I, kW, kVA, kVAr, PF, frequency, kWh, kVAh, kVArh (import/export), demand (kW, kVA, A — block + sliding), THD-V, THD-I, individual harmonics up to 31st |
| Demand window | Configurable sliding / fixed-block, 1 / 5 / 15 / 30 / 60 min |
| Communication | RS485 Modbus RTU, Modbus TCP (Ethernet), MQTT (WiFi / Ethernet), REST API (cloud) |
| Display | Backlit LCD, configurable scroll, instantaneous + accumulated + demand pages |
| Standards | IEC 62053-22 (Class 0.5S active), IEC 62053-23 (reactive), IEC 61000-4-30 Class S (Titan PQ variant), EMC per IEC 61000-4 series |
| Mounting | DIN rail (standard) or 96 × 96 mm panel-mount adapter |
| Operating conditions | −25 °C to +70 °C, 5–95% RH non-condensing, EMC tested IEC 61000-4 series |
| Origin | Designed and manufactured in Binola, Haryana (Delhi NCR), India |
MFM vs Power Quality Meter vs Energy Meter vs Smart Meter
Indian electrical procurement uses several overlapping names for adjacent products. Here is the side-by-side view so the right device ends up in the right tender BOQ.
| Dimension | MFM (Titan) | Power Quality Meter | Basic Energy Meter | Smart / Utility Meter |
|---|---|---|---|---|
| What it measures | V, I, kW, kVA, kVAr, PF, kWh, kVAh, kVArh, demand, harmonics — per phase | Same as MFM plus full PQ events (sags / swells / transients / flicker) | Active energy (kWh) only, sometimes kVA + PF | MFM parameters + utility-tariff features (TOU, anti-tamper, prepaid) |
| Accuracy class | Class 0.5S (IEC 62053-22) | Class S PQ (IEC 61000-4-30) + 0.5S energy | Class 1.0 or 2.0 typical | Class 1.0 (residential) or 0.5S (industrial) |
| Where it's installed | LT panel, sub-distribution, captive plant, industrial submetering | Critical feeders, OT/ICU, data centre IT load, manufacturing PQ-sensitive equipment | Single-load monitoring, basic kWh tracking | Utility service entrance for billing |
| Typical user | Electrical contractor, plant engineer, switchgear OEM, ESCO, MEP consultant | Power quality auditor, MV/HV engineer, industrial reliability team | Building owner, light commercial submeter | DISCOM, utility company, AMI rollout |
| Indian terminology | MFM, multifunction meter, trivector meter, panel meter, network analyser | PQ meter, power quality analyser, Class A / Class S analyser | kWh meter, energy meter, basic meter | Smart meter, AMI meter, utility meter |
The right TechOVN product for each: Titan (MFM), Titan PQ (PQ analyser, IEC 61000-4-30 Class S), Titan basic variants (basic energy meter), and our utility smart meter range (DISCOM-side).
Where the MFM Is Used
Six common procurement contexts for a Class 0.5S 3-phase multifunction meter in India.
LT Panel Builders & Switchgear OEMs
Panel-mount or DIN rail MFM as a standard fitment on LT distribution boards, MCCs, PCCs, and LT panels. Standard 96 × 96 mm or DIN rail formats with RS485 Modbus for switchgear PLC integration.
Industrial Submetering
Production lines, compressed-air systems, chiller plants, large motors. Class 0.5S accuracy on every circuit, dashboard view across the plant, alerts on demand or PF deviation.
Captive Power Plants & DG Sets
Track DG output independently from grid import, calculate cost per kWh, detect synchronisation issues, and feed data into ABT-style internal billing models for multi-tenant captive plants.
MEP Consultants & Electrical Contractors
Specify Class 0.5S MFM with RS485 + MQTT + WiFi for tender BOQs — IEC 62053-22 compliant, BIS-licensed, GeM-registered. Standards-compliant boilerplate available on request for inclusion in tender documents.
Sub-Metering for Tenant Billing
Per-floor, per-tenant, per-unit submetering with chargeback-grade accuracy. Class 0.5S meets the standard required for revenue-grade tenant bills that hold up under dispute.
Solar PPA & Net-Metering Audits
Independent measurement on the solar generation side and the grid-import side for behind-the-meter solar verification, with bidirectional kWh + kVArh and time-of-use tariff support.
The Titan Family — One Platform, Multiple Meter Types
The Titan MFM is one variant in a family of Class 0.5S meters from the same in-house design and production line. Pick the variant that matches the circuit, the application, or the tender specification — they all feed the same cloud platform.
Frequently Asked Questions
What an MFM is, how it differs from a trivector meter / network analyser / smart meter, Class 0.5S vs Class 1.0, RS485 + MQTT + WiFi comms, and BIS / GeM compliance.
Specifying an MFM for a panel, plant or tender BOQ?
Talk to our team. Class 0.5S Titan MFM with RS485 Modbus + Modbus TCP + MQTT + WiFi, DIN rail or 96 × 96 mm panel mount, BIS-licensed, GeM-registered. Datasheet, Modbus register map, and standards-compliant tender boilerplate on request.