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 |
Adjustable Over‑Voltage Protection — Cuts power when phase voltage exceeds the set safe level to protect equipment from high‑voltage damage.
Adjustable Under‑Voltage Protection — Disconnects supply if phase voltage drops below the set threshold to avoid brown‑out damage.
Over‑Current Protection — Protects circuits from over‑current conditions with adjustable current limits.
Three‑Phase Balance & Asymmetry Protection — Detects phase imbalance (asymmetry) and trips to prevent damage to motors and other loads.
Phase Sequence Protection — Ensures correct phase order and prevents reversal faults that can damage three‑phase equipment.
Adjustable Timing Controls — Active time, reconnect delay, and power‑on delay are adjustable to fine‑tune protection response.
Manual Voltage & Current Calibration — Allows precise calibration of measurement ranges to match specific system requirements.
DIN‑Rail Mountable Design — Standard 35 mm DIN‑rail installation for easy panel mounting.
Wide Use Cases — Suitable for industrial, commercial, and residential three‑phase systems to protect motors, compressors, HVAC units, and other loads.
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.
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.
4‑Pole Configuration: Offers four‑pole protection, providing comprehensive isolation and safety for complex DC circuits.
Overload & Short‑Circuit Protection: Protects DC circuits against overcurrent, short circuits and overloads, helping prevent equipment damage and fire hazards.
Versatile Current Ratings: Available in multiple ratings like 16 A, 20 A, 32 A, 63 A to match different PV system needs.
Flame‑Retardant Durable Build: Constructed with high‑quality flame‑retardant materials for durability and safer operation in harsh environments.
Compact & DIN‑Rail Mountable: Space‑efficient design that easily installs on standard 35 mm DIN rails in PV combiner boxes and DC panels.
Reliable for PV & DC Systems: Ideal for solar PV string protection, energy storage systems, telecom DC circuits, and industrial DC applications.
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.
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