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.
₨ 2,250 ₨ 2,500
The TOMZN TOB1‑63H 4‑Pole AC Mini Circuit Breaker is a C‑type protection device designed for 230/400 V AC electrical systems at 50/60 Hz. It provides reliable overload and short‑circuit protection for three‑phase + neutral (4P) circuits in residential, commercial, and industrial installations. Built with a compact, robust flame‑resistant body, this MCB ensures long‑lasting performance and easy DIN‑rail mounting while meeting standard safety requirements for low‑voltage power distribution systems.
| Specification | Details |
|---|---|
| Model | TOB1‑63H 4P |
| Type | 4‑Pole AC Miniature Circuit Breaker (MCB) |
| Pole Configuration | 4P (3P + N) |
| Rated Voltage | 230/400 V AC ~ |
| Frequency | 50 Hz / 60 Hz |
| Current Ratings Available | 16 A, 20 A, 25 A, 32 A, 40 A, 50 A, 63 A |
| Trip Curve | C‑Type (for moderate inrush) |
| Breaking Capacity | 6 kA (typical) |
| Rated Insulation Voltage | 500 V |
| Rated Impulse Withstand Voltage | 6 kV |
| Operating Temperature | -25 °C to +55 °C (approx.) |
| Mounting | DIN Rail (standard 35 mm) |
| Standards Compliance | IEC 60898 |
| Typical Applications | Residences, commercial & industrial AC power protection |
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.
2-Pole AC Surge Protection Device – Protects single-phase electrical systems from voltage surges and transient over-voltages.
High Surge Current Capacity (20 kA ~ 40 kA) – Can absorb and divert high-energy spikes from lightning strikes or switching surges to safeguard devices.
Rated Voltage ~275 V AC (up to 385 V versions) – Designed for typical household and light commercial AC mains.
Low Let-Through Voltage (< 1.5 kV) – Limits the voltage that reaches connected equipment during a surge, reducing damage risk.
Compact DIN-Rail Mountable – Easy installation in electrical panels or distribution boards.
Flame-Retardant Durable Build – Made with robust materials for long-term reliability.
Auto-Reset After Surge – Resets itself after handling a surge event for continuous protection.
3P + 3P Dual Power Manual Transfer Switch (MTS) – Lets you manually switch between two three-phase AC power sources (e.g., grid and generator/backup), ensuring continuous supply when one source fails.
Integrated Circuit Breaker (MCB) Protection – Combines transfer switch functionality with overload, short-circuit, under-voltage, and phase-loss protection in one unit for safer operation.
Three-Phase Compatibility (3P + 3P) – Designed for balanced switching of all three phases between two input sources, suitable for industrial, commercial, and large-load three-phase systems.
Wide Voltage & Frequency Support – Compatible with 230 V / 400 V AC and works on both 50 Hz and 60 Hz networks.
Manual Operation – User-controlled changeover without automation, giving direct control over which source is supplying power.
Wide Current Range – Available in various current ratings (e.g., 6 A up to 63 A), allowing selection based on load requirements.
High Breaking Capacity (~6 kA) – Built to safely interrupt fault currents and protect the circuit during overloads and short-circuit events.
DIN-Rail Mountable Design – Easy installation in electrical panels and distribution boards with standard DIN-rail mounting.
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.
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