4‑Pole Manual Changeover Switch – Designed for three‑phase systems (L1, L2, L3 + N), allowing safe switching between two AC power sources (e.g., main grid and backup).
63 A Rated Current – Suitable for moderate‑to‑heavy loads in residential, commercial, or industrial three‑phase installations.
Manual Transfer Switch Function (MTS) – Lets you manually switch power sources to maintain continuity when the primary supply fails.
Interlock Mechanism – Prevents simultaneous connection of both power sources, reducing the risk of short circuits and equipment damage.
DIN‑Rail Mountable – Standard 35 mm DIN‑rail installation for easy integration into electrical panels and distribution boards.
Flame‑Retardant Durable Build – Made of high‑quality insulating plastic for safety and reliability.
Compact & Robust Design – Space‑efficient construction suitable for crowded control enclosures.
Seamless Power Management – Helps manage dual power supply systems (e.g., grid & generator) where uninterrupted power is needed
₨ 2,999
The TOMZN TO419G 4P 63A Changeover Switch Breaker is a manual transfer isolating switch (MTS) designed for three‑phase AC power systems to safely switch between two power sources such as the utility grid and a backup generator or alternate supply. It features a 4‑pole configuration to separately handle all three phases plus neutral, ensuring balanced and reliable power transfer. Built with high‑temperature resistant, flame‑retardant plastic and compatible with standard 35 mm DIN‑rail installation, this switch simplifies manual power source control, prevents both sources from being connected at once (interlock mechanism), and enhances safety and continuity in residential and commercial power distribution applications.
| Specification | Details |
|---|---|
| Model / Type | TOMZN TO419G 4P 63A Manual ChangeOver Switch Breaker (Manual Transfer Switch) |
| Pole Configuration | 4‑Pole (L1, L2, L3 + N) for three‑phase AC systems |
| Rated Current | 63 A |
| Rated Voltage | ~220/380–400 V AC (typical three‑phase distribution) |
| Rated Frequency | 50 Hz / 60 Hz |
| Operation Type | Manual Transfer Switch (MTS) — manual switching between two AC power sources |
| Interlock Mechanism | Yes — prevents both sources from being connected simultaneously |
| Mounting | 35 mm DIN‑Rail mountable |
| Housing Material | Flame‑retardant plastic for durability and safety |
| Typical Use | Dual power source switching (e.g., grid & generator), three‑phase backup power control |
| Dimensions | Compact design suitable for panel installation (approx. similar to other MTS units) |
| Weight | Light, suitable for standard distribution boards |
1‑Pole Configuration: Single‑pole fuse holder for one DC circuit/string in a PV system.
Wide Fuse Compatibility: Works with 10×38 mm PV fuse links rated from around 3 A up to 30 A (varies by model and application).
Robust Construction: Made from high‑temperature resistant plastic with good insulation for safer DC operation.
DIN‑Rail Mountable: Standard 35 mm DIN rail mounting allows easy installation in PV combiner boxes and DC panels.
Essential PV Protection: Acts as a base for fuse links that protect against overcurrent, overloads, and short‑circuit faults in solar strings.
Over-Voltage Protection – Cuts power if voltage exceeds the safe set level.
Under-Voltage Protection – Shuts off supply when voltage drops below the safe limit.
Over-Current Protection – Protects circuits from excessive current draw.
Automatically Recovers – Restores power once voltage/current returns to safe range.
Real-Time Voltage & Current Display – Built-in display shows live voltage and current.
Adjustable Settings – You can set over-voltage, under-voltage, and over-current thresholds.
Memory of Settings – Remembers your set values even after power loss.
DIN-Rail Mountable – Easy installation in distribution panels.
Dual Power Manual Transfer Switch (MTS) – Enables manual switching between two independent DC power sources (e.g., solar array and battery bank) in a PV system for reliable power control.
4P + 4P Pole Configuration – Provides full isolation of both positive and negative poles for each power path, ensuring greater safety and complete DC disconnection when switching.
High DC Voltage & Current Capacity – Typically rated for up to 1000 V DC and 63 A, suitable for a wide range of solar system sizes and off‑grid applications.
Built‑in Overload & Short‑Circuit Protection – Integrated MCB function protects DC circuits from overcurrent and short circuits during normal operation.
Robust Construction – Made with flame‑retardant, durable materials to withstand PV environmental conditions and long‑term use.
Manual Operation with Visual Indicators – Simple hand‑operated transfer and clear on/off indicators help ensure correct switching and safer operation.
DIN‑Rail Mountable – Designed for easy installation in DC combiner boxes, distribution panels, or PV system enclosures.
Suitable for PV & Off‑Grid Systems – Ideal for solar PV installations, battery backup systems, and other DC power networks requiring safe manual source selection.
10-in-1 Smart Protection & Monitoring – Monitors voltage, current, leakage current, total kWh (energy) and protects your circuit.
WiFi Connectivity & App Control – Connects to your home Wi-Fi (2.4 GHz) and lets you remote ON/OFF control, monitor and adjust settings from the Smart Life / TUYA app on iOS/Android.
Adjustable Protection Settings – Set thresholds for over-voltage, under-voltage, over-current, and leakage current via the app or manually.
Voltage & Current Monitoring – Real-time display and tracking of line voltage and current in the app.
Leakage Current Protection – Detects leakage and cuts power to enhance electrical safety.
Energy Consumption Tracking – Shows total kWh usage so you can monitor and manage power consumption.
Scheduled Control & Timer – Create schedules to automate ON/OFF times for your circuits via the app.
Automatic Reconnection with Delay – After a fault trip, it can reconnect automatically with an adjustable delay (1 s to 500 s).
Calibration Feature – Allows calibration for voltage, current, and kW readings for better accuracy.
Voice Assistant Compatible – Works with Google Assistant / Alexa for hands-free control (where supported).
DIN-Rail Mountable – Standard design for installation in electrical panels.
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