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Orbit 20 A Modular MCB (White) — Description

A Modular MCB (Miniature Circuit Breaker) is a safety device used in electrical systems to protect circuits against overloads and short circuits. The Orbit 20 A Modular MCB is a compact, white-finished breaker designed to fit into standard modular distribution boards / electrical panels.

What It Does

Overload Protection: Automatically trips (cuts off the circuit) when the current exceeds 20 A for a sustained period, protecting wires and appliances from overheating or fire risk.

Short-Circuit Protection: Trips very quickly if a sudden high surge occurs (e.g., live and neutral fault), reducing risk of damage to equipment and wiring.

Manual Reset: After a trip, the breaker can be manually reset once the fault condition is resolved — unlike a fuse that must be replaced.

Modular Format: Designed to snap into a 1-module slot on a DIN-rail or modular consumer unit for neat, organized electrical distribution.

MCBs are essential safety components in modern wiring, replacing old fuse systems for better reusability, quicker operation, and easier maintenance.

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Key Specifications

Feature Detail

Rated Current 20 A — suitable for circuits expected to carry up to ~20 amps safely.
Poles Single Pole (SP) — breaks the live (phase) conductor in single-phase circuits.
Voltage ~240 V AC (standard mains supply).
Module Size 1 Module — compact modular breaker.
Finish White — blends with typical modular distribution boards.
Protection Type Overload & short-circuit (trips automatically when fault detected).

This kind of MCB is generally used in residential, commercial, and light-commercial wiring to safeguard circuits like lighting, sockets, small appliances, fans, and general power feeds.

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Typical Use-Cases

An Orbit 20 A Modular MCB (white) is ideal for:

Protecting circuit lines that feed multiple power points or moderate loads (e.g., lighting + sockets, moderate appliances).

Home distribution boards — keeps individual circuits protected rather than relying on a single main fuse.

Office or small shop wiring — protecting small power circuits from faults.

Modular wiring installations — integrates cleanly with other modular breakers and accessories.

Important Note:

MCBs protect against overload/short circuits but do not provide earth-leakage (shock) protection — so pairing with an RCCB/RCD in the board is recommended for complete safety.

Proper wiring gauge and earthing must be ensured for safety and compliance.

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In Summary

The Orbit 20 A Modular MCB (White) is a compact circuit breaker for modern modular electrical panels. It safeguards individual circuits from overloads and short circuits, can be manually reset after tripping, and helps keep electrical wiring safe and organized. It’s suitable for typical residential and light commercial use where a 20 A circuit protection is required.

What It Is — Miniature Circuit Breaker (MCB)

An Orbit 25 A Modular MCB is a miniature circuit breaker designed to protect electrical circuits from overloads and short circuits. It is a modular form‑factor breaker (compact, DIN‑rail/consumer‑unit mountable) with a white housing that integrates neatly into standard electrical distribution boards.

MCBs are automatic safety devices that break the circuit when current exceeds a safe level, preventing overheating, fire hazard, or damage to wiring and connected equipment. Unlike fuses, MCBs can be reset manually after they trip.

Orbit Electric’s own MCB range is described by the manufacturer as devices that detect abnormal current flow and automatically switch off the circuit when a fault is detected, making them safer than simple fuse protection.

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Key Specifications (Typical)

Feature Detail

Rated Current 25 A — designed for circuits that may carry up to about 25 amps under normal load.
Protection Type Overload and short‑circuit protection.
Number of Poles Usually Single‑Pole (SP) — breaks the live conductor.
Voltage Rating Standard single‑phase AC (≈240 V).
Mounting Modular / DIN‑rail mountable — fits in standard breaker panels.
Colour White housing — matches common distribution board aesthetics.
Resettable Manual reset after trip — no fuse replacement needed.

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What It Does — Safety & Protection

A 25 A modular MCB provides:

Overload Protection

If the current drawn in a circuit rises above its safe limit (25 A) due to too many devices or a fault condition, the MCB will automatically trip — cutting power and preventing overheating of wires and devices.

Short‑Circuit Protection

In case of a sudden surge (e.g., a short circuit where phase and neutral contact directly), the breaker will trip instantly, minimizing the risk of fire or equipment damage. MCBs combine thermal and magnetic trip mechanisms to react appropriately across different fault types.

Manual Reset

Once the fault is identified and cleared, you can reset the breaker by switching it back ON — unlike a fuse that must be replaced after it melts.

Typical Use‑Cases

These breakers are commonly used in:

Residential Distribution Boards: Protecting circuits for socket outlets, lighting groups, kitchen circuits, or other circuits rated up to 25 A.

Light Commercial Installations: Office or shop circuits where moderate loads (fans, lights, computers, appliances) need dedicated overcurrent protection.

Structured Modular Panels: Fits well with modular consumer units and switchgear — giving a neat, professional installation.

Typical installation involves mounting the MCB on a DIN rail in the distribution board, with appropriate upstream protection (main breaker/RCCB) and correctly sized wiring for safety and compliance.

What It Is — and What It Isn’t

It is NOT earth‑leakage protection. MCBs do not detect ground faults or shock/leakage currents — for that you would use an RCCB/RCD upstream.

It is NOT a switch. While you can use it to disconnect circuits manually, its primary role is overcurrent protection, not line switching.

Wiring must match load. Even if the breaker is rated 25 A, the conductor gauge, socket rating, and connected equipment must be suitable for that current.