Dual Power Manual Transfer Switch (MTS) – Allows you to manually switch between two AC power sources (e.g., main grid and backup generator).
1P + 1P Configuration – Uses two single-pole modules—one for each power source—ideal for single-phase systems.
Built-in Circuit Breaker (MCB) – Provides overload and short-circuit protection during power source switching.
Safety Interlocking System – Prevents both power sources from being connected at the same time to avoid back-feeding and electrical hazards.
Manual Operation – Simple, user-controlled switching between power supplies without automated control.
Wide Frequency Support: Works with 50 Hz / 60 Hz AC systems.
Single-Phase Compatibility – Best for homes, small businesses, and backup power setups.
₨ 1,599 ₨ 1,799
The TOMZN 1P+1P MTS AC Dual Power Manual Transfer Switch is a manual transfer switch combined with MCB protection designed for single-phase AC electrical systems. It lets you safely switch between two power sources (such as the main grid and a backup generator) by hand, making it ideal for homes, small businesses, and backup power setups. The built-in interlocking mechanism ensures only one source is active at a time, preventing electrical hazards, while the integrated circuit breaker offers overload and short-circuit protection during power transitions. Compatible with 50 Hz and 60 Hz systems and easily mounted on a standard DIN rail, this switch helps maintain reliable and safe power management in dual-source applications.
| Specification | Details |
|---|---|
| Model | TOMZN TOB1-63H 1P+1P MTS |
| Type | Manual Transfer Switch + MCB |
| Pole Configuration | 1P + 1P (Single-phase dual source) |
| Rated Voltage | 230 V / 240 V ~ to 400 V AC |
| Frequency | 50 Hz / 60 Hz |
| Rated Current Options | 6 A, 10 A, 16 A, 20 A, 25 A, 32 A, 40 A, 50 A, 63 A |
| Breaking Capacity | 6 kA (typical) |
| Operation | Manual switching between two AC power sources |
| Safety Features | Interlocking to prevent both sources ON simultaneously |
| Integrated Protection | Built-in overload and short-circuit protection (MCB-type) |
| Mounting | DIN-Rail (standard) |
| Applications | Backup power switching for residential, commercial & industrial systems |
Over-Voltage Protection – Automatically cuts power when the input voltage exceeds a set safe limit.
Under-Voltage Protection – Automatically shuts off power if the voltage falls below the configured threshold.
Over-Current Protection – Trips the socket if the current exceeds the adjustable limit (1–16 A).
Automatic Recovery – Restores power automatically once voltage/current returns to normal after a fault.
Real-Time Voltage & Current Display – Built-in digital display shows live voltage and current readings.
Adjustable Calibration – Voltage calibration adjustable within ±9.5 % for more accurate readings.
Configurable Protection Values – Users can adjust over/under-voltage and over-current trigger levels and delay times.
Factory Reset & Fault Inquiry – Easy reset of settings and ability to check fault history with button presses.
Wide Voltage Range Compatibility – Works with 90–300 V AC supply, suitable for both 110 V and 220 V environments.
Durable Construction & Long Life – Low power consumption (< 2 W) and long mechanical/electrical life (~100,000 operations).
4‑Pole AC Miniature Circuit Breaker – Provides protection for all three phases plus neutral (3P + N) in AC systems.
C‑Type Trip Curve – Trips reliably on overloads and short circuits, and can handle moderate inrush currents from motors and lighting loads.
Wide Voltage Compatibility: Rated for 230/400 V AC and works with 50 Hz/60 Hz electrical networks.
Multiple Current Ratings Available – Often offered in ratings up to 63 A (and sometimes 16 A, 20 A, 25 A, 32 A, 50 A).
Overload & Short‑Circuit Protection – Automatically disconnects the circuit if current exceeds safe limits.
DIN Rail Mounting – Compact design for easy installation in distribution boards.
Durable Construction – Built with robust materials for reliable performance in residential, commercial, and industrial installations.
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.
3‑Phase Dual Power Manual Transfer Switch (MTS) – Designed for three‑phase AC systems to manually switch between two independent power sources (e.g., grid and backup/generator), ensuring continuous power supply.
4P + 4P Pole Configuration – Each power source has a 4‑pole module (phases L1, L2, L3 + neutral), providing full control and protection across all conductors.
Integrated MCB Protection – Combines manual transfer switch functionality with a Miniature Circuit Breaker (MCB) to offer overload, short‑circuit, under‑voltage, and phase‑loss protection in one unit.
Manual Operation – User‑controlled changeover between main and backup power sources for reliable fail‑safe switching without automation.
Wide Voltage & Frequency Support – Suitable for 230 V / 400 V AC systems at 50 Hz / 60 Hz frequencies, compatible with a broad range of electrical networks.
Multiple Current Ratings – Available in common ratings such as 6 A, 10 A, 16 A, 20 A, 25 A, 32 A, 40 A, 50 A, 63 A to match different load requirements.
High Breaking Capacity – Typically around 6 kA, ensuring safe interruption of fault currents during protection events.
DIN‑Rail Mountable – Easy installation in electrical distribution boards and control panels using standard 35 mm DIN rail.
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