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Nexa Retrofit Hd 25a — product pageDesigned page · specs & gallery
Overview
Nexa Retrofit HD 25A
The NEXA HD 25A is Beakn's high-power WiFi smart switch, purpose-built for heavy electrical loads such as air conditioners and geysers. It installs behind your existing switchboard in approximately 15 minutes — no new switch plates, no civil work, no hub — and instantly adds app control, voice control, scheduling, and safety features to appliances that standard 10A smart switches cannot handle.
It is part of the NEXA Retrofit range: Beakn's most affordable WiFi smart switch line, running entirely on Beakn's own in-house platform (app, cloud, and firmware — not Tuya or any white-label system).
Features
Core Smart Control
•App control via Beakn's in-house app (iOS and Android)
•Voice control — Google Assistant, Amazon Alexa, Apple Siri
•Wall switch retained — physical switch keeps working at all times
•2-way switching supported
Offline Resilience
•Schedules, timers, and wall switch operation continue without internet
•Only remote access from outside the home requires an active internet connection
20 App Features — Included Free, No Subscription
Automation (8):
Schedules for any day/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 — automatically disconnects enrolled appliances if voltage rises above 280V or drops below 200V; critical for protecting expensive ACs and geysers
•Lock Room alerts if a locked switch is toggled manually
•Full offline mode
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.
Power Monitoring (Optional Variant)
The NEXA HD 25A + Power Monitor variant adds real-time energy tracking:
•Real-time voltage, current, power (watts and units), and power factor
•Track how many units your AC consumed today, this week, or this month
•Servicing alert: when power factor drops below 0.8, the module sends a proactive alert before the appliance fails
Surge Protection
•Rated at 2.5KV; tested up to 4KV — protects heavy, expensive appliances from power surges
Use Cases
| Appliance | Why HD 25A? |
|---|---|
| Air conditioner (AC) | Primary use case; standard 10A switches cannot safely handle AC loads — 25A relay handles the startup and running current comfortably |
| Geyser / water heater | High-draw resistive load; schedule on/off to save energy and avoid waiting |
| Heavy resistive loads | Any single appliance drawing close to or above 10A |
Practical Scheduling Examples
•Geyser: Schedule ON at 6:00 AM, auto-off at 6:45 AM — hot water ready when you wake, no energy wasted
•AC: Set a countdown timer so it turns off 30 minutes after you fall asleep
•Away from home: Turn off the AC remotely via app before you arrive, or confirm the geyser is off after you leave
Selling Points
1.25A relay — the only NEXA variant rated for AC and geyser loads; handles heavy startup and running currents that 10A switches cannot
2.No hub, no rewiring — installs in 15 minutes behind the existing board; switch plates stay
3.Safe Mode voltage protection — automatically disconnects expensive appliances during voltage fluctuations (above 280V or below 200V)
4.4KV surge-tested — protects high-value appliances from power surges
5.Works without internet — schedules and wall switch function fully offline
6.All 20 features free — no subscription, ever
7.3-year warranty — longest in class for a retrofit
What's in the box
No what's-in-the-box information was provided.
Compatibility
Compatibility
| Category | Detail |
|---|---|
| Voice assistants | Google Assistant, Amazon Alexa, Apple Siri (including Siri Shortcuts, Focus Modes, CarPlay) |
| Hub requirement | None — direct to cloud over WiFi |
| WiFi | Standard 2.4GHz WiFi network |
| Switchboard | Works behind existing switchboards; plates unchanged |
| Physical switch | Retained and functional after installation |
| Platform | Beakn in-house app (iOS & Android) |
| NFC | NFC tag control supported |
| Neutral wire | Required at switchboard |
What It Is NOT Compatible With
•Cannot replace standard NEXA 10A variants for light/fan loads (overkill; those use the standard switch variants)
•Not a fan regulator — the HD 25A does not include built-in fan speed control (that is unique to NEXA's combo variants)
Use Cases
| Appliance | Why HD 25A? |
|---|---|
| Air conditioner (AC) | Primary use case; standard 10A switches cannot safely handle AC loads — 25A relay handles the startup and running current comfortably |
| Geyser / water heater | High-draw resistive load; schedule on/off to save energy and avoid waiting |
| Heavy resistive loads | Any single appliance drawing close to or above 10A |
Specifications
| Relay rating | 25A |
|---|---|
| Operating voltage | 240V AC, 50/60Hz |
| Neutral wire | Required at switchboard |
| 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 |
Installation
Installation & Wiring
What You Need
•A neutral wire present at the switchboard (required; most Indian boards already have one — electrician confirms during install)
•An existing switchboard with physical switches already in place
•A WiFi network (2.4GHz)
Installation Process
1.Electrician opens the existing switchboard
2.The 23mm-thick NEXA HD 25A module is placed behind the board
3.Wiring is connected (live, neutral, load)
4.Board is closed — switch plates remain unchanged
5.Module is paired to the Beakn app via WiFi
Time: approximately 15 minutes
Civil work required: none — no drilling, plastering, or new wires
Free installation available in 8 cities
Wiring Notes
•Neutral wire is mandatory — all NEXA variants require a neutral at the switchboard
•The physical wall switch continues to function normally after installation
•Module operates direct to cloud over WiFi — no hub, no bridge required
User Manual
No manual content was provided.
Configuration
Configuration
•Module is paired to the Beakn app via WiFi
•Beakn app is used for app control on iOS and Android
•Voice control is available through Google Assistant, Amazon Alexa, and Apple Siri
•Siri Shortcuts work with Apple Focus Modes and CarPlay
•NFC tag control is supported
•Home-screen shortcuts are included
•Schedules, auto-off timers, countdown timers, sunrise/sunset triggers, multi-step routines, one-tap scenes, sensor-driven workflows, and scene-trigger conversion are included as part of the 20 app features
•Local app control works on the same WiFi network
•Remote access from outside the home requires an active internet connection
•The device runs entirely on Beakn's own in-house app, cloud infrastructure, and firmware — not Tuya or any white-label system
Reset
No reset instructions were provided.
Troubleshooting
Troubleshooting / Safety Notes
•Safe Mode voltage protection automatically disconnects enrolled appliances if voltage rises above 280V or drops below 200V
•Safe Mode is critical for protecting expensive ACs and geysers
•The module has Lock Room alerts if a locked switch is toggled manually
•Full offline mode is supported
•Schedules, timers, and wall switch operation continue without internet
•Only remote access from outside the home requires an active internet connection
•Surge protection is rated at 2.5KV and tested up to 4KV
•The NEXA HD 25A + Power Monitor variant sends a proactive servicing alert when power factor drops below 0.8
•The physical wall switch continues to function normally after installation
•The module does not interfere with the AC's own remote or internal controls
FAQ
Is the NEXA HD 25A suitable for my air conditioner?
Yes — this is the primary use case. Standard NEXA variants (10A) are not rated for AC or geyser loads. The HD 25A is rated at 25A, making it the correct choice for these heavy appliances.
What is the difference between the HD 25A and the HD 25A + Power Monitor?
Both are identical in switching capability (25A). The Power Monitor variant adds real-time tracking of voltage, current, watts, units consumed, and power factor — plus a proactive servicing alert when power factor drops below 0.8.
Does it work without internet?
Yes. The physical wall switch always works. Schedules and auto-off timers run locally on the module. Local app control works on the same WiFi network. Only remote access from outside your home requires internet.
Does it need a neutral wire?
Yes — a neutral wire must be present at the switchboard. This applies to all NEXA variants. Most Indian switchboards already have one; your electrician will confirm this during the 15-minute installation.
Is there a monthly subscription?
No. All 20 app features are included free forever — no subscription, no premium tier, no in-app purchases.
Does Safe Mode protect my AC?
Yes. When enrolled in Safe Mode, the HD 25A will automatically disconnect your AC if voltage goes above 280V or below 200V, protecting the compressor from voltage fluctuations.
Will my physical AC remote and wall switch still work after installation?
Yes. The HD 25A sits in line with your power supply to the AC; it does not interfere with the AC's own remote or internal controls. The wall switch continues to function normally.
How is this different from the Low Profile Retrofit?
Both install behind the existing board. The Low Profile Retrofit is thinner (16mm vs 23mm) and supports up to 16A per channel — suitable for heavy loads but below the HD 25A's 25A rating. For ACs or geysers, the HD 25A is the correct choice. The Low Profile range does not offer fan combo variants; NEXA does (though those are separate 10A products, not the HD).
What surge protection does it offer?
The HD 25A is rated at 2.5KV for surge protection and has been tested up to 4KV — important protection for expensive heavy appliances like ACs.
Is this a Tuya-based product?
No. The NEXA HD 25A runs entirely on Beakn's own in-house app, cloud infrastructure, and firmware. It is not a Tuya or white-label product, and is supported by Indian technical support.