2-Pole DC Circuit Breaker – Designed for direct current (DC) circuits.
High DC Voltage Rating: Supports up to 1000 V DC, ideal for solar and battery systems.
Overload & Short-Circuit Protection: Automatically trips to protect DC circuits from faults.
Multiple Current Ratings: Available in ratings from 6 A up to 63 A for different load needs.
DIN Rail Mounting: Easy installation in standard DC distribution boxes.
Compact Modular Design: Space-efficient and suitable for solar PV combiner boxes and enclosures.
Reliable DC Arc Protection: Built to handle DC arcs and provide safer breaking performance compared to AC breakers in DC systems.
₨ 1,200 ₨ 1,500
Tomzn TOB7Z-63 2P DC 1000 V MCB is 2-pole direct-current circuit breaker specially designed for high-voltage DC systems (up to 1000 V DC), such as solar photovoltaic (PV) installations, battery systems, and DC power circuits. It provides reliable overload and short-circuit protection, easily mounts on a standard DIN rail, and is available in multiple current ratings (up to 63 A) to match different loads. Its compact, flame-retardant design makes it suitable for residential, commercial, and industrial DC applications where safety and durability are essential.
| Specification | Details |
|---|---|
| Model | TOB7Z-63 |
| Type | 2-Pole DC Miniature Circuit Breaker (MCB) |
| Rated Voltage | 1000 V DC |
| Current Ratings Available | 3 A, 6 A, 10 A, 16 A, 20 A, 25 A, 32 A, 40 A, 50 A, 63 A |
| Poles | 2-Pole |
| Protection Functions | Overload & Short-Circuit Protection |
| Trip Curve | Type C |
| Mounting | DIN Rail (35 mm) |
| Body Material | Flame-retardant plastic |
| Breaking Capacity | ~6000 A (6 kA) |
| Application | Solar PV DC circuits, battery systems, general DC protection |
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.
WiFi Smart Control — Remotely turn ON/OFF the circuit from your smartphone using the Smart Life / Tuya app.
Energy Monitoring (kWh) — Tracks real-time energy usage, including voltage, current, power, and total kWh.
Scheduling & Timer Functions — Set schedules, countdowns, and loop timers for automated circuit control.
Over/Under Voltage Protection — Protects connected equipment by tripping when voltage goes too high or too low.
Over-Current & Over-Power Protection — Trips the breaker if current or power exceeds safe limits.
Real-Time Metering — Displays voltage (V), current (A), and active power (W) in the app.
Voice Assistant Compatible — Works with Amazon Alexa & Google Assistant for hands-free control.
Relay Last Status Memory — Remembers the last ON/OFF state after a power outage.
Durable Design — Built with flame-retardant materials and supports DIN-rail installation.
Wide Operating Range — Works with AC 90–300 V and supports 2.4 GHz Wi-Fi (not 5 GHz
2P + 2P DC Manual Transfer Switch (MTS) – Lets you manually switch between two DC power sources in a photovoltaic (PV) setup, such as a solar array and a backup battery bank.
Dual Power Operation – Designed for DC dual power systems to ensure continuity of power without automatic switching.
Rated for High DC Voltage: Supports up to 1000 V DC, meeting common PV system requirements.
Integrated Circuit Breaker Protection: Combines manual transfer switching with overload and short‑circuit protection in one unit.
2P + 2P Pole Structure: Provides full protection and switching for two separate DC sources (each 2‑pole).
Rated Current Options: Available (commonly) at 63 A and potentially other ratings depending on model.
DIN‑Rail Mountable: Compact design fits standard 35 mm DIN rails in PV combiner boxes and DC 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.
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