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Nexa Retrofit Hd 25a Power Monitor — product pageDesigned page · specs & gallery
Overview
Nexa Retrofit HD 25A + Power Monitor
The NEXA HD 25A + Power Monitor is Beakn's heavy-load smart switch with integrated real-time energy monitoring. It installs behind an existing switchboard in approximately 15 minutes, adding app control, voice control, scheduling, and detailed energy tracking to high-draw appliances — primarily air conditioners and geysers — without replacing switch plates, rewiring, or civil work.
It is the only product in the NEXA Retrofit range that combines a 25A relay with live power monitoring (voltage, current, wattage, units consumed, and power factor). Where the standard NEXA HD 25A gives you smart control of a heavy load, this variant also tells you exactly how much energy that load is using and warns you when it needs servicing.
The module runs entirely on Beakn's own in-house platform — not Tuya or any white-label system — with Indian technical support and a 3-year warranty.
Compatibility
Use Cases
| Scenario | Why this product fits |
|---|---|
| Split AC control | 25A relay handles compressor start-up surge; monitor daily/monthly units; set schedules to switch off at night or before you leave |
| Geyser / water heater | Heavy resistive load; schedule ON before wake-up, auto-OFF after 30 minutes; monitor kWh to track energy spend |
| Energy tracking for heavy appliances | Know exactly how many units your AC consumed this month; compare week-on-week |
| Proactive AC servicing | Power factor alert below 0.8 flags a dirty filter, refrigerant loss, or failing capacitor before it causes breakdown or inflated bills |
| Rental / commercial property management | Remote on/off, monthly unit reports, and servicing alerts without being on-site |
| Voltage-sensitive appliances | Safe Mode disconnects the load automatically if mains voltage goes outside 200–280V — critical for compressor-based appliances |
FAQ
Q: What heavy appliances can the NEXA HD 25A + Power Monitor handle?
A: Any single-phase appliance drawing up to 25A at 240V — primarily split ACs (up to ~2 ton / typical 16–20A running), window ACs, and geysers (5–10A typically). The 25A rating comfortably covers compressor start-up surges.
Q: Can I use this for lights or fans as well?
A: This variant is purpose-built for heavy loads (25A relay). For lights, fans, and standard appliances, the standard 10A NEXA variants or the fan-combo variants (1+1, 2+1, 4+1) are the appropriate products.
Q: Is this the same as a standard NEXA HD 25A?
A: The NEXA HD 25A and the NEXA HD 25A + Power Monitor share the same 25A relay, surge protection
Specifications
| Relay rating | 25A |
|---|---|
| Operating voltage | 240V AC, 50/60Hz |
| Neutral wire | Required |
| Module thickness | 23mm |
| Max load — incandescent / resistive | 800W per channel |
| Max load — LED | 120W or 6 units per channel |
| Max load — inductive | 400W per channel |
| Power supply | Isolated SMPS |
| Standby power | < 0.8W |
| Surge protection | 2.5KV rated; tested up to 4KV |
| 2-way switching | Supported |
| Connectivity | WiFi — direct to cloud, no hub required |
| Offline control | Yes — schedules, timers, and wall switch work without internet |
| Voice assistants | Google Assistant, Amazon Alexa, Apple Siri |
| App features | 20, included free — no subscription |
| Warranty | 3 years |
| Platform | Beakn in-house (app, cloud, firmware) |
| Power monitoring — real-time | Voltage, current, watts, power factor |
| Power monitoring — historical | Units used per day / week / month |
| Servicing alert threshold | Power factor drops below 0.8 |
| Scenario | Why this product fits |
| Split AC control | 25A relay handles compressor start-up surge; monitor daily/monthly units; set schedules to switch off at night or before you leave |
| Geyser / water heater | Heavy resistive load; schedule ON before wake-up, auto-OFF after 30 minutes; monitor kWh to track energy spend |
| Energy tracking for heavy appliances | Know exactly how many units your AC consumed this month; compare week-on-week |
| Proactive AC servicing | Power factor alert below 0.8 flags a dirty filter, refrigerant loss, or failing capacitor before it causes breakdown or inflated bills |
| Rental / commercial property management | Remote on/off, monthly unit reports, and servicing alerts without being on-site |
| Voltage-sensitive appliances | Safe Mode disconnects the load automatically if mains voltage goes outside 200–280V — critical for compressor-based appliances |
Real-time voltage — live voltage reading at the switchboard.
Real-time current — live current draw in amperes.
Real-time power — watts consumed at this moment.
Energy units — kWh consumed; tracked per day, per week, and per month.
Power factor monitoring — efficiency measure of the connected appliance; if power factor drops below 0.8, the module automatically sends a servicing alert before the appliance degrades or fails.
Automation (8):*
Schedules for any day and time
Auto-off timers (fire even when switched on at the wall)
Countdown timers
Sunrise / sunset triggers
Multi-step routines
One-tap scenes
Sensor-driven workflows
Scene-trigger conversion (a physical press fires a scene)
Safety (3):*
Safe Mode voltage protection — disconnects enrolled appliances if voltage rises above 280V or drops below 200V
Lock Room alerts — notifies if a locked switch is toggled manually
Full offline mode (local operation without internet)
Monitoring (4):*
Running-hours tracking per channel
Estimated energy cost
Full ON/OFF history
Intelligent reminders
Convenience (5):*
Siri Shortcuts with Apple Focus Modes and CarPlay
Google Assistant
Amazon Alexa
NFC tag control
Home-screen shortcuts
WiFi direct to cloud — no hub, no bridge required.
Voice control — Google Assistant, Amazon Alexa, Apple Siri.
Offline resilience — wall switch, schedules, and timers work locally on the module even without internet; only remote (outside-home) access requires internet.
2-way switching — compatible with existing 2-way switch setups.
25A relay — handles the full starting and running current of split ACs and geysers.
Isolated SMPS — clean, stable low-power supply to electronics; standby draw below 0.8W.
4KV surge protection — rated at 2.5KV, tested and validated up to 4KV; protects against voltage spikes on the Indian grid.
Installation
Installation & Wiring
Prerequisites
•Neutral wire at the switchboard — mandatory; all NEXA variants require a neutral. Most Indian switchboards already have one. Your electrician confirms availability during installation.
•An existing switch or isolator for the heavy appliance (AC isolator switch, geyser switch, etc.).
•WiFi network (2.4GHz) within range of the switchboard.
Installation Steps (summary)
1.Electrician opens the existing switchboard.
2.The 23mm module is placed behind the board in the available depth.
3.Line, neutral, load, and (if applicable) 2-way wires are connected to the module terminals.
4.Board is closed; switch plates remain unchanged.
5.Module is paired to the Beakn app over WiFi — typically 15 minutes total.
Wiring Notes
•Module thickness: 23mm — verify sufficient depth behind the board before installation.
•2-way switching is supported; existing 2-way wiring can be retained.
•Physical wall switches continue to work normally after installation; app and voice control are additive.
•Free installation available in 8 cities — Beakn can arrange a qualified electrician.
Post-Installation
•Enable Safe Mode in the app to protect the connected appliance from over/under voltage.
•Set up schedules or auto-off timers for the appliance immediately after pairing.
•The power monitoring dashboard activates automatically once the appliance is running.
FAQ
Q: What heavy appliances can the NEXA HD 25A + Power Monitor handle?
A: Any single-phase appliance drawing up to 25A at 240V — primarily split ACs (up to ~2 ton / typical 16–20A running), window ACs, and geysers (5–10A typically). The 25A rating comfortably covers compressor start-up surges.
Q: What exactly does the power monitor track?
A: Real-time voltage, current (amps), power (watts), and power factor — all live on the app. It also accumulates units (kWh) and lets you view consumption for today, this week, and this month.
Q: What is the servicing alert, and why does it matter?
A: When the power factor of the connected appliance drops below 0.8, the module pushes a notification to your app. For an AC this typically indicates a dirty filter, low refrigerant, or a failing capacitor. Catching it early prevents a breakdown, extends appliance life, and avoids inflated electricity bills from running an inefficient unit.
Q: Is there a subscription fee to use the energy monitoring features?
A: No. All 20 app features — including energy monitoring, servicing alerts, Safe Mode, schedules, and voice integration — are included free with every unit. No monthly fee, no premium tier, no in-app purchases, ever.
Q: Will the switch work if my internet goes down?
A: Yes. The physical wall switch always works. Schedules and auto-off timers run locally on the module and fire even without internet. Only remote access from outside your home network requires an active internet connection.
Q: Do I need to rewire or change my switch plates?
A: No. The module installs behind the existing board; your switch plates, physical switches, and wiring layout are unchanged. No drilling, plastering, or new conduit required.
Q: Does it need a neutral wire?
A: Yes — a neutral wire at the switchboard is required for all NEXA variants including this one. Most Indian switchboards have a neutral; your electrician will confirm before installation.
Q: Can I use this for lights or fans as well?
A: This variant is purpose-built for heavy loads (25A relay). For lights, fans, and standard appliances, the standard 10A NEXA variants or the fan-combo variants (1+1, 2+1, 4+1) are the appropriate products.
Q: Is this the same as a standard NEXA HD 25A?
A: The NEXA HD 25A and the NEXA HD 25A + Power Monitor share the same 25A relay, surge protection