Manual Transfer Switch (MTS) – Lets you manually switch between two AC power sources (e.g., grid and generator) for continuous power supply.
63 A Rated Current – Supports up to 63 amps load, suitable for residential and light commercial circuits.
1‑Pole Configuration – Switches a single circuit line (live) for simple single‑phase power control.
Circuit Breaker + Transfer Switch Combo – Combines breaker protection with manual power switching in one unit.
Mechanical Interlock – Prevents both power sources from being connected at the same time, reducing risk of short circuits and back feeding.
Flame‑Retardant Plastic Housing – Made with high‑temperature resistant insulation for safety and durability.
Easy DIN‑Rail Mounting – Designed for standard 35 mm DIN‑rail installation in electrical panels.
Compact & Simple Operation – Small, user‑friendly design makes it easy to install and operate in tight spaces.
Reliable Backup Control – Ideal for switching between main and alternate power sources during outages or maintenance.
₨ 799
The TOMZN TO119G 1P 63A ChangeOver Switch Breaker is a manual transfer switch with built‑in breaker protection designed to safely control and alternate between two AC power sources (such as grid and generator or backup supply) for single‑phase systems. It ensures continuous power availability by letting the user manually switch to a secondary source whenever the primary supply fails, while also providing circuit protection. Made from flame‑retardant plastic and featuring a mechanical interlock to prevent simultaneous connection of both sources, it is easy to install on a 35 mm DIN rail and offers dependable performance for homes, offices, shops, and light industrial applications.
| Specification | Details |
|---|---|
| Model / Type | TOMZN TO119G 1P 63A ChangeOver Switch Breaker (Manual Transfer Switch + Circuit Breaker) |
| Rated Current | 63 A |
| Pole Configuration | 1 Pole (L only) |
| Rated Voltage | ~400 V AC (standard single‑phase supply application) |
| Frequency | 50 Hz / 60 Hz |
| Operation Type | Manual Transfer Switch (MTS) – manual switching between two power sources |
| Interlock Mechanism | Yes – prevents both sources from being connected simultaneously for safety |
| Mounting | 35 mm DIN‑Rail mountable |
| Housing Material | Flame‑retardant plastic for insulation and durability |
| Protection Type | Acts as a circuit breaker + isolating switch |
| Typical Use Cases | Switching between main (grid) and backup power (generator, inverter) |
| Applications | Residential, commercial, light industrial backup power systems |
4-Pole Surge Protection Device (SPD) – Designed to protect three-phase AC systems plus neutral from voltage surges and transient over voltages.
High Surge Current Handling – Built to absorb surge currents (typically around 20 kA–40 kA depending on rating) to protect equipment from lightning strikes and switching transients.
Designed for Low-Voltage AC Networks – Works with 230/400 V AC at 50/60 Hz, making it suitable for residential, commercial, and light industrial electrical panels.
Fast Response & Low Let-Through Voltage – Quickly clamps and diverts excess surge energy to ground, reducing the risk of damage to sensitive electronics.
DIN-Rail Mountable – Compact, DIN-rail design for easy installation in distribution boards and sub-panels.
Thermal Disconnect Protection – Often includes thermal disconnection mechanisms for added safety if internal components overheat.
Visual Status Indicators – Many models use simple status windows/LEDs (green for normal, red for fault) to show device health and when replacement is needed.
Smart WiFi Control – Remotely turn the breaker ON/OFF from anywhere using the Smart Life / Tuya app on your phone.
Energy Monitoring (kWh) – Measures and reports real-time energy usage, including voltage, current, and power, so you can track consumption and manage bills.
Scheduling & Timer Functions – Create timers, schedules, and loop timers for automatic circuit control.
Built-In Protection – Offers over-voltage, under-voltage, and over-current protection settings to safeguard connected devices.
Wide Operating Range – Works with AC 90–300 V (50/60 Hz) supply and supports 63 A load capacity (adjustable).
Last State Memory – Remembers the previous ON/OFF status after a power outage.
Durable & Reliable – Designed for over 100,000 mechanical operations and –25 °C to +70 °C operating temperature.
Real-Time Voltage & Current Metering – Displays voltage, current, and power values in the app.
Voice Assistant Ready – Works with Google Assistant & Alexa via the Tuya/Smart Life platform (depending on app setup).
Adjustable Over-Voltage Protection – Cuts off power if voltage rises above your set safe level (e.g., 230–300 V range).
Adjustable Under-Voltage Protection – Disconnects supply when voltage falls below the safe limit (e.g., 140–210 V range).
Adjustable Over-Current Protection – Protects against excessive current with adjustable current range up to 63 A.
Real-Time Monitoring – Built-in voltage meter, ammeter, and energy (kWh) meter for live electrical data.
Delay & Reconnect Settings – Adjustable delay times before protection kicks in and automatic power reconnection after normal conditions return.
Memory of Fault Values – Saves recorded values for over-voltage, under-voltage, and over-current events even after power is off.
LED Indicators – Flashing LEDs show voltage or current protection status when triggered.
DIN-Rail Mountable – Fits easily into electrical panels using a standard DIN rail.
Single‑Pole AC Miniature Circuit Breaker (MCB) – Protects a single phase in AC electrical circuits.
Rated Voltage: 230/400 V AC at 50/60 Hz — suitable for standard household and industrial AC systems.
C‑Type Trip Curve – Trips on moderate overcurrents (≈5–10× rated current), ideal for circuits with moderate inrush like lighting and small motors.
Overload & Short‑Circuit Protection – Automatically disconnects the circuit when current exceeds safe limits to prevent wiring or device damage.
Multiple Current Ratings Available: Often offered in 2 A, 4 A, 6 A, 10 A, 16 A, 20 A, 32 A, 63 A to match different circuits.
Compact, DIN‑Rail Mountable Design – Easy to install in standard distribution boards and electrical panels.
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