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.
₨ 5,099 ₨ 5,500
The TOMZN 4P+4P AC Dual Power Manual Transfer Switch with Integrated MCB is a manual changeover device with built‑in circuit breaker protection designed for three‑phase AC dual power systems. It lets you manually switch between two independent power sources (such as the main grid and a backup generator) to maintain continuous and reliable power supply during outages or faults. The device supports 230 V–400 V AC at 50/60 Hz and features protective functions such as overload, under‑voltage, short‑circuit, and phase‑loss protection, making it suitable for critical applications where power interruptions are not acceptable, including factories, commercial installations, high‑rise buildings, hospitals, and emergency systems. Its dual 4‑pole design ensures complete switching of all three phase lines and neutral for safe and balanced power transfer.
| Specification | Details |
|---|---|
| Model/Type | TOMZN 4P+4P MTS AC Dual Power Manual Transfer Switch with MCB (Manual Transfer Switch + Circuit Breaker) |
| Pole Configuration | 4P + 4P (three‑phase + neutral per source for dual power inputs) |
| Rated Voltage | 230 V – 400 V AC (50 Hz / 60 Hz) |
| 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 AC breaking capacity) |
| Protection Functions | Overload protection, short‑circuit protection, under‑voltage protection, phase‑loss protection |
| Operation | Manual transfer switch — manually switches between two AC power sources (e.g., grid and generator) |
| Safety Interlock | Prevents both sources from being connected at the same time (mechanical interlock) |
| Mounting | DIN‑rail mount (standard) |
| Application | Ideal for three‑phase dual power systems in residential, commercial, or industrial settings where continuous power is critical |
| Standards / Certifications | ISO/CE certified (common quality/production standards) |
Power Rating: Delivers a rated output power of 50kW and supports a maximum output of 55.5kVA, ideal for commercial and industrial solar systems.
High Efficiency: Achieves up to 98.8% maximum efficiency, ensuring superior energy conversion with minimal losses.
Multiple MPPT Inputs: Features 6 independent MPPTs, allowing flexible string design and maximizing energy harvest across various roof orientations or shading conditions.
Wide MPPT Voltage Range: Operates within a voltage range of 200V–1000V, supporting diverse PV array configurations.
Advanced Communication Options: Equipped with RS485, USB, and optional Wi-Fi, LAN, or GPRS/4G for real-time monitoring and smart integration via mobile and web platforms.
Comprehensive Protection Suite:
Type II Surge Protection (AC & DC sides)
DC Switch for manual disconnection
AFCI (Arc Fault Circuit Interrupter)
Ground Fault Monitoring
Anti-Islanding Protection
DC Reverse Polarity Protection
AC Short Circuit and Overvoltage Protection
Transformerless Design: Lightweight and compact build without compromising performance or reliability.
Smart Cooling System: Uses intelligent air cooling to maintain stable internal temperatures and prolong lifespan.
User-Friendly Interface: Built-in LED display with Wi-Fi connectivity, enabling app-based system monitoring and control.
Outdoor-Ready Enclosure: IP65-rated for water and dust resistance, suitable for installation in harsh environments.
Flexible Grid Compatibility: Supports adjustable power factor (0.8 leading to 0.8 lagging) and complies with international grid codes.
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.
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