TOMZN 4P 63A 3Phase ChangeOver Switch Breaker-TO419G Subtotal: ₨ 2,999
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Ac/dc Breakers, Solar Accessories
TOMZN 4P DC MCB Solar PV System Mini Circuit Breaker-TOB7Z-63 1000V
TOMZN 4P DC MCB Breaker Features
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High DC Voltage Rating: Designed for up to 1000 V DC, making it suitable for solar photovoltaic (PV) systems, battery storage and other high‑voltage DC applications.
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4‑Pole Configuration: Offers four‑pole protection, providing comprehensive isolation and safety for complex DC circuits.
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Overload & Short‑Circuit Protection: Protects DC circuits against overcurrent, short circuits and overloads, helping prevent equipment damage and fire hazards.
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Versatile Current Ratings: Available in multiple ratings like 16 A, 20 A, 32 A, 63 A to match different PV system needs.
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Flame‑Retardant Durable Build: Constructed with high‑quality flame‑retardant materials for durability and safer operation in harsh environments.
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Compact & DIN‑Rail Mountable: Space‑efficient design that easily installs on standard 35 mm DIN rails in PV combiner boxes and DC panels.
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Reliable for PV & DC Systems: Ideal for solar PV string protection, energy storage systems, telecom DC circuits, and industrial DC applications.
₨ 3,299 ₨ 3,499
TOMZN 4P DC MCB TOB7Z-63 1000V Solar PV System Mini Circuit Breaker
The TOMZN TOB7Z‑63 4‑Pole DC Miniature Circuit Breaker is high‑voltage DC protection device designed for solar photovoltaic (PV) systems, energy storage (ESS), telecommunication DC power, and other DC electrical applications. It is rated for up to 1000 V DC and available in various current ratings (e.g., 16 A, 20 A, 32 A, 63 A) to suit different system needs. This DC MCB provides dependable overload and short‑circuit protection for direct current circuits, ensuring safety and reducing the risk of equipment damage. Its 4‑pole design offers comprehensive isolation and protection across DC lines, and the compact, DIN‑rail mountable construction makes installation easy in PV combiner boxes and DC panels.
| Specification | Details |
|---|---|
| Model | TOMZN TOB7Z‑63 4P DC Miniature Circuit Breaker |
| Type | DC Miniature Circuit Breaker (MCB) |
| Number of Poles | 4 Poles |
| Rated Voltage | 1000 V DC |
| Rated Current Options | 16 A, 20 A, 32 A, 63 A |
| Protection Functions | Overload protection, Short‑circuit protection (DC systems) |
| Application | Solar PV systems, energy storage (ESS), telecom DC power, DC distribution |
| Body Material | Flame‑retardant, durable construction |
| Mounting | DIN‑rail (standard) |
| Typical Use Cases | Photovoltaic solar arrays, ESS/battery protection, industrial DC circuits |
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High Discharge Capacity (20 kA ~ 40 kA) – Can absorb and divert large surge currents caused by lightning or fast transient overvoltage events, helping safeguard connected equipment.
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Rated for Up to 1000 V DC – Suitable for high-voltage DC systems typically used in photovoltaic (solar) installations and other DC circuitry.
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Fast Response Time – Activates quickly (in microseconds) to reduce exposure to harmful transient events in the DC network.
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Low Residual Voltage – Limits the voltage that passes through to sensitive devices during a surge, minimizing potential damage
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Thermal Disconnect Safety – Built-in thermal disconnect devices improve reliability by isolating the unit if internal components overheat.
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Visual Status Indicators – Color-coded indicators (e.g., green for normal, red for fault) provide quick feedback on protection status.
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DIN-Rail Mountable – Easy installation in DC combiner boxes, PV distribution panels, and electrical cabinets using standard DIN-rail mounting.
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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.
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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.
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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.
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Wide Voltage & Frequency Support – Compatible with 230 V / 400 V AC and works on both 50 Hz and 60 Hz networks.
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Wide Current Range – Available in various current ratings (e.g., 6 A up to 63 A), allowing selection based on load requirements.
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High Breaking Capacity (~6 kA) – Built to safely interrupt fault currents and protect the circuit during overloads and short-circuit events.
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DIN-Rail Mountable Design – Easy installation in electrical panels and distribution boards with standard DIN-rail mounting.
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TOMZN 4P AC MCB Breaker Features
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4‑Pole AC Miniature Circuit Breaker – Provides protection for all three phases plus neutral (3P + N) in AC systems.
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C‑Type Trip Curve – Trips reliably on overloads and short circuits, and can handle moderate inrush currents from motors and lighting loads.
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Wide Voltage Compatibility: Rated for 230/400 V AC and works with 50 Hz/60 Hz electrical networks.
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Multiple Current Ratings Available – Often offered in ratings up to 63 A (and sometimes 16 A, 20 A, 25 A, 32 A, 50 A).
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Overload & Short‑Circuit Protection – Automatically disconnects the circuit if current exceeds safe limits.
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TOMZN 4P+4P DC MTS Breaker Features
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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.
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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.
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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.
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Built‑in Overload & Short‑Circuit Protection – Integrated MCB function protects DC circuits from overcurrent and short circuits during normal operation.
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Robust Construction – Made with flame‑retardant, durable materials to withstand PV environmental conditions and long‑term use.
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Manual Operation with Visual Indicators – Simple hand‑operated transfer and clear on/off indicators help ensure correct switching and safer operation.
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DIN‑Rail Mountable – Designed for easy installation in DC combiner boxes, distribution panels, or PV system enclosures.
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Suitable for PV & Off‑Grid Systems – Ideal for solar PV installations, battery backup systems, and other DC power networks requiring safe manual source selection.
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