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What It Is — Miniature Circuit Breaker (MCB)

A modular MCB (Miniature Circuit Breaker) is a compact protective device used in electrical distribution panels. It automatically cuts off power when the current flowing through a circuit exceeds a safe threshold (overload or short-circuit), protecting wiring and connected devices. MCBs are a modern and reusable alternative to traditional fuse protection.

The Orbit Express 10 A Modular MCB is designed to fit standard modular distribution boards / consumer units with DIN-rail or modular panel mounting. Modular construction helps keep switchboards neat and makes it easy to add or replace breakers.

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Key Specifications

Feature Description

Rated Current 10 A — suitable for circuits drawing up to ~10 amps continuously.
Pole Configuration Single Pole (SP) — protects the live conductor.
Modular Size 1 Module (1-slot width) — fits modular panels neatly.
Color & Finish White housing — common for distribution board use; blends with most panels.
Trip Characteristic Typically C-curve — good for general residential/commercial circuits (lighting, small appliances, fans).
Protection Type Provides overload & short-circuit protection — trips automatically when fault detected.
Standards Compliance Fulfills standard MCB safety/operation norms (similar to IS/IEC 60898-1-type breakers widely used in modular boards).

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What It Does — Protection Functions

Overload protection: If current exceeds 10 A for a sustained period, the breaker trips to protect wires and devices.

Short-circuit protection: It trips rapidly during a short circuit (big surge), minimizing risk of fire or equipment damage.

Manual reset: After tripping, the breaker can be manually reset once fault is fixed — no fuse replacement required.

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Typical Use-Cases

This 10 A modular MCB is commonly used in:

Residential circuits — protecting lighting, fan circuits, small socket circuits, or individual room feeds.

Small offices / shops — protecting low-power circuits.

Distribution boards with modular wiring layouts — works well with standard modular panels for neat and organized electrical distribution.

Upgrading old fuse protection — replacing fuses with modern breakers improves safety and convenience.

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What To Keep In Mind

MCBs do not protect against earth-leakage/shock — if you need earth-fault protection, combine with an RCCB/RCD upstream.

Proper wiring & earthing is essential — breaker alone doesn’t ensure safe installation.

The 10 A rating means it’s not suited for heavy appliances (like water heaters, big ACs, high-power motors) — use appropriately rated breakers for those circuits.

Installation should be done in a proper distribution board / panel by a qualified electrician for safety and code compliance.

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Quick Summary

The Orbit Express 10 A Modular MCB (Single Pole) is a compact, white modular circuit breaker that protects electrical circuits from overloads and short circuits. It fits standard modular panels, is easy to reset, and is ideal for residential or light-commercial circuits drawing up to 10 A. Proper upstream protective devices and good installation practices should be followed for safe operation.