PAGE
Energy Meter 3 Phase 100a Din Rail — product pageDesigned page · specs & gallery
Overview
The Beakn Energy Meter 3 Phase 100A DIN-Rail is a three-phase home energy monitor designed for high-load households and large homes. It mounts on a standard 35mm DIN rail inside your distribution panel and measures current on all three phases simultaneously via three included split-core CT clamps — no cutting or splicing of wires required. It reads voltage, current, power factor, active power, and energy consumption every second, pushes live data to the Beakn app, and sends instant alerts via app and WhatsApp when voltage or power factor crosses safe limits. When paired with Beakn smart switches or plugs in Safe Mode, it can automatically disconnect enrolled appliances during a voltage event.
This is a monitoring and protection device — not a billing meter and not a direct load-switching device. It is the right choice for 3BHK+ homes, villas, and any home with a three-phase supply carrying heavy or multiple simultaneous loads.
Features
Real-Time Per-Phase Monitoring
•Reads voltage, current, power factor, and active power on each of the three phases (R, Y, B) independently, every second
•Per-phase breakdown visible in the Beakn app (e.g. Phase R: 232V / 4.2A, Phase Y: 228V / 6.1A, Phase B: 241V / 8.0A)
•Total household kWh consumption tracked continuously
•Critical for identifying phase imbalance — an uneven distribution of loads across phases that stresses the supply and individual circuits
Voltage Protection Alerts
•Instant Beakn app + WhatsApp alert when any phase voltage rises above 280V or drops below 200V
•Alert includes the exact voltage reading
•Sustained voltage outside the 200–280V safe band damages AC compressors, refrigerator motors, TV power supplies, and inverter batteries
Power Factor Monitoring
•Alerts when power factor on any phase drops below 0.8
•Low power factor is typically a 3–6 month early-warning sign of motor or compressor wear
•Catching it early (AC service: ~₹1,500–2,500) avoids compressor replacement (~₹8,000–15,000)
Safe Mode — Automatic Appliance Disconnect
•When a voltage event is detected, the Beakn cloud sends an OFF command to every enrolled Beakn smart switch or plug within seconds
•Works with Beakn switches and plugs only; non-Beakn appliances receive the alert only (connect them through a Beakn Smart Plug to automate their protection)
•Safe Mode disconnect resumes normal operation when WiFi reconnects after an outage
Built-In Relay for External Contactor
•The meter includes a built-in low-current relay
•This relay can drive an external contactor (sold separately) for whole-circuit cutoff — useful for protecting an entire sub-panel or heavy load circuit
•The meter itself does not switch heavy loads directly; it has no built-in contactor
Offline Resilience
•Continues reading locally if WiFi goes down
•Queues alerts and syncs them to the cloud on reconnect
•Safe Mode disconnect requires WiFi and resumes automatically when connectivity returns
App & Voice Control
•Live wattage, today's kWh, this month's total kWh, and estimated cost calculated from your DISCOM tariff
•Per-phase voltage/current breakdown for load rebalancing decisions
•Daily and monthly budget alerts
•6 months of cloud history to pinpoint when consumption spiked
•Works with Google Assistant, Amazon Alexa, and Apple Siri
CT Clamp Form Factor — No Splicing Required
•Three split-core CT clamps wrap around the existing live wires in the panel
•No cutting, no splicing, no interruption to the live circuit during installation
•Meter body clips directly onto the 35mm DIN rail alongside existing MCBs
Use Cases
| Scenario | Why This Meter Fits |
|---|---|
| 3BHK+ home with three-phase supply | Per-phase tracking across all three phases; 100A capacity handles full household load |
| Villa or bungalow with multiple ACs | High aggregate current; three-phase; per-phase data spots which phase carries the ACs |
| Home with EV charger | EV chargers draw heavy current on a single phase; this meter flags phase imbalance and voltage sag |
| Instant geyser (instantaneous water heater) | High inrush current on one phase; monitor shows real-time spike and running wattage |
| Home with a lift motor | Inductive motor load; power factor monitoring flags early motor wear |
| Multiple split ACs across phases | Per-phase PF tracking catches the compressor degrading before it fails |
| Homes with solar rooftop + grid | Monitor import/export trends; 6-month history shows seasonal patterns |
| Homeowner wanting to rebalance loads | Per-phase current readings guide the electrician on which circuits to move to which phase |
Compatibility
Works With
•Any three-phase distribution panel with a standard 35mm DIN rail
•Three-phase supply: R, Y, B live phases + neutral (four-wire system)
•2.4GHz WiFi routers (802.11 b/g/n) — not compatible with 5GHz-only networks
•Beakn app on Android and iOS
•Google Assistant, Amazon Alexa, Apple Siri
•Beakn smart switches and smart plugs (for Safe Mode auto-disconnect)
•External contactors (third-party, sold separately) via built-in relay terminals — for whole-circuit cutoff
Requires
•Neutral wire (mandatory for meter operation)
•2.4GHz WiFi coverage at or near the distribution panel
•Licensed/qualified electrician for panel installation
Does Not Replace / Not Compatible With
•DISCOM billing meters (runs in parallel, not as a substitute)
•5GHz-only WiFi networks
•Non-Beakn appliances for Safe Mode auto-disconnect (they receive alerts only; use a Beakn Smart Plug to extend protection)
•Single-phase setups (use the 1 Phase 20A DIN-Rail or 1 Phase Box 16A for single-phase homes)
•Inline high-current load switching (no built-in contactor; requires external contactor on the relay)
Choosing Between the Four Beakn Energy Meters
| Situation | Recommended Meter |
|---|---|
| Single-phase home, simple install, load under 16A | 1 Phase Energy Meter Box 16A |
| Single-phase home, DIN-rail panel, up to 20A | 1 Phase Energy Meter 20A DIN-Rail |
| Three-phase home, up to 60A, inline install | 3 Phase Energy Meter Box 60A |
| Three-phase home, up to 100A, DIN-rail panel | 3 Phase Energy Meter 100A DIN-Rail ← this product |
Selling Points
1.100A three-phase capacity — handles the heaviest residential loads: multiple ACs, EV charger, instant geyser, lift motor, all running simultaneously
2.Three CT clamps included — no extra purchase; complete out-of-the-box for a full three-phase install; all three covered under warranty
3.Per-phase breakdown — the only way to see which phase is overloaded, under-voltage, or has a failing motor on it; essential for large homes with distributed loads
4.No splicing, no cutting — split-core CTs wrap around existing wires; electrician is in and out in 15–30 minutes with zero disruption to live circuits
5.Instant WhatsApp + app alerts — voltage spikes and drops land on WhatsApp without needing to open any app; reaches family members who don't monitor dashboards
6.Safe Mode appliance protection — Beakn switches and plugs auto-disconnect within seconds of a voltage event; non-technical household members are protected automatically
7.Power factor early warning — catches compressor and motor degradation months before failure, saving ₹8,000–15,000 in avoidable repairs
8.No subscription, ever — real-time monitoring, 6-month history, WhatsApp alerts, Safe Mode, voice assistant — all included at no ongoing cost
9.3-year warranty — industry-leading for a panel-mounted device; covers the CT clamps too
10.Works without a hub — direct WiFi to cloud; no proprietary gateway or bridge to buy or maintain
11.Free professional install in 8 cities — removes the barrier of finding and briefing an electrician
12.4kV surge rating, –10°C to 105°C operating range — built for Indian panel conditions: heat, dust, and grid surges
Key Specs
| Phase configuration | Three-phase (R, Y, B + neutral) |
|---|---|
| Form factor | 35mm DIN-rail mount |
| Current measurement | Up to 100A per phase via 3 external split-core CT clamps |
| CT clamps included | Yes — 3 CT clamps in the box |
| Operating voltage | 90–300V AC per phase, 50/60Hz |
| Neutral wire | Required (three live phases + neutral) |
| Monitored parameters | Per-phase voltage, current, power factor, active power; total kWh |
| Reading frequency | Every second (real-time) |
| Surge rating | Up to 4kV |
| Operating temperature | –10°C to 105°C |
| Connectivity | WiFi 2.4GHz (802.11 b/g/n), direct to cloud, no hub required |
| Cloud history | 6 months |
| Voice assistants | Google Assistant, Amazon Alexa, Apple Siri |
| App platforms | Android & iOS |
| Built-in relay | Yes — low-current relay for driving an external contactor (contactor sold separately) |
| Warranty | 3 years (includes the 3 CT clamps) |
| Subscription | None — no subscription required |
Installation & Wiring
What Is Required
•A three-phase distribution panel with a 35mm DIN rail
•Four wires accessible: Phase R (live), Phase Y (live), Phase B (live), and Neutral
•A 2.4GHz WiFi network in range of the panel
•A licensed/regular electrician (Beakn recommends this; high-voltage panel work)
What's in the Box
•Beakn 3 Phase 100A DIN-Rail Energy Meter
•3 × split-core CT clamps (one per phase)
Installation Steps (Electrician)
1.Mount the meter — clip the meter body onto the 35mm DIN rail inside the distribution panel
2.Connect the supply wires — connect Phase R, Phase Y, Phase B live wires and the Neutral wire to the corresponding terminals on the meter (for metering power, not inline load switching)
3.Fit the CT clamps — open each split-core CT clamp, wrap it around the relevant phase live wire (R, Y, B), and close the clamp. No cutting or splicing needed
4.Route CT leads — plug each CT clamp lead into the corresponding CT input on the meter body
5.Close the panel — the panel cover closes back over the meter as normal; installation is internal and contained
6.Pair to WiFi — open the Beakn app, add the device, and connect to your 2.4GHz WiFi network
7.Configure Safe Mode — in the app, enrol any Beakn smart switches or plugs you want to auto-disconnect during a voltage event
Typical installation time: 15–30 minutes
Free professional installation: available in 8 cities (check Beakn app/website for covered cities)
Wiring Notes
•Neutral is mandatory — the meter must connect to neutral alongside the three live phases. It will not operate correctly without neutral
•CT clamps are directional on some models — follow the arrow on the clamp body for correct polarity (positive vs. negative power reading)
•The meter does NOT sit inline with the main load — it is a measurement device, not a series breaker or switch
•The built-in relay terminals are available for wiring an external contactor if whole-circuit cutoff is required (contactor not included)
•This meter is not a replacement for your DISCOM billing meter — both run in parallel; the DISCOM meter is the sealed legal billing device on their side of the panel
FAQ
Q: Does this replace my DISCOM electricity meter?
No. Your DISCOM smart meter is the sealed legal billing meter installed by your utility. The Beakn meter is a separate sub-meter on your side of the distribution panel. Both run in parallel. The Beakn meter gives you real-time visibility, protection alerts, and consumption tracking — it does not affect your DISCOM bill calculation.
Q: My home has a three-phase supply — is this the right product?
Yes. This meter is built for three-phase homes (four wires: R, Y, B live + neutral). It tracks all three phases independently, up to 100A per phase, and flags phase imbalance, voltage problems, and power factor issues on any individual phase.
Q: Are the CT clamps included?
Yes — three split-core CT clamps are included in the box, one for each phase. They are covered under the 3-year warranty.
Q: Does installation require cutting any live wires?
No. The CT clamps are split-core — they open, wrap around the existing live wire, and close. No cutting, no splicing, no live-wire modification needed.
Q: Can it automatically switch off my appliances during a voltage spike?
The meter itself senses and alerts — it does not directly switch appliances. For automatic disconnect, pair it with Beakn smart switches or plugs and enable Safe Mode in the app. On a voltage event, the Beakn cloud sends an OFF command to all enrolled devices within seconds. Non-Beakn appliances receive the alert only; connect them through a Beakn Smart Plug to bring them into Safe Mode protection.
Q: Can it cut off my entire main circuit during a fault?
Not on its own. The meter has a built-in low-current relay that can drive an external contactor (sold separately). Wiring an external contactor to the relay terminals enables whole-circuit cutoff. Most homeowners protect appliances individually through Beakn switches/plugs in Safe Mode instead.
Q: What voltage levels trigger an alert?
Any phase voltage above 280V or below 200V triggers an instant alert via the Beakn app and WhatsApp, including the exact voltage reading. This is the safe operating range for Indian household appliances.
Q: What does the power factor alert mean?
Power factor below 0.8 on any phase triggers an alert. This is typically an early sign of motor or compressor wear — often flagged 3–6 months before failure. Acting on it (booking an AC service) is far cheaper than replacing a burned-out compressor.
Q: Does it need a hub or gateway?
No. It connects directly to your 2.4GHz WiFi and communicates with the Beakn cloud without any hub or additional hardware.
Q: What happens if my WiFi goes down?
The meter keeps reading and recording locally. Queued alerts are sent when WiFi reconnects. Safe Mode automatic disconnect requires WiFi; it resumes as soon as connectivity is restored.
Q: Can I see per-phase data in the app?
Yes. The app shows a per-phase breakdown — voltage, current, and power factor for Phase R, Y, and B individually — as well as total kWh and estimated cost against your DISCOM tariff.
Q: Does it work on 50Hz and 60Hz supplies?
Yes — it operates at 90–300V AC, 50/60Hz, covering both Indian standard (50Hz) and international supplies.
Q: Is there a subscription fee?
No subscription. All features — real-time monitoring, WhatsApp alerts, Safe Mode, 6-month cloud history, voice assistant integration — are included at no ongoing cost.
Q: How long is the warranty, and does it cover the CT clamps?
3 years, and yes — the warranty explicitly covers the three included CT clamps.
Q: Does it work with Google, Alexa, and Siri?
Yes — Google Assistant, Amazon Alexa, and Apple Siri are all supported.