Shakti Switchgears

Here’s a summary of Exora MCBs (Miniature Circuit Breakers) — what they are, key features and why they’re used.

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What is Exora MCB

Exora MCBs are modular circuit-protection devices made for overload and short-circuit protection of wiring installations (homes, offices, industrial panels).

They are made by Lauritz Knudsen Electrical & Automation (formerly associated with Larsen & Toubro / L&T in many cases).

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Key Features & Specifications

Rated Current: Exora MCBs come in a range — from small currents (for lighting, small loads) up to ~100 A.

Breaking / Short-Circuit Capacity: Typically 10 kA — meaning they can safely interrupt fault currents up to 10 kA.

Standards Compliance: Conform to IS/IEC 60898 (standard for MCBs) for domestic & light commercial use.

Poles / Configurations: Single-pole (SP), double-pole (DP), 3-pole (TP), 4-pole (FP) versions available depending on uses.

Curve Type: Many are “C-curve” which defines tripping characteristic — suitable for general purpose circuits including mixed resistive + inductive loads.

Safety & Utility Features:

True-contact indication (shows whether contacts are open or closed) for safety.

Label-holder for pole/circuit identification.

“Trip-free” mechanism — ensures the breaker trips even if handle is held in ON position, enhancing safety.

Low watt-loss design (reduces power wastage, heating).

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Example Exora MCB Products

Here are some example Exora MCBs in different configurations / ratings:

[L&T Exora Single Pole C Curve 32A MCB]() — good for single-phase circuits / lighting / small loads.

[Lauritz Knudsen EXORA 1‑Pole 240 V AC 10 kA C Curve MCB 16A]() — lower-rating option for light circuits / sockets / distribution boards.

[L&T Exora 63A 2 Pole 10 kA C‑Curve MCB]() — heavier-duty MCB for higher loads, distribution lines, small motors / equipment.

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When / Where to Use Exora MCBs

For household wiring: lighting circuits, socket outlets, small appliances — use single-pole or double-pole MCBs of suitable amp rating.

For commercial / small-industrial panels: for distribution feeders, small motors, mixed loads — use higher-amp, 2-pole / 4-pole MCBs.

Anywhere you need protection from overload or short-circuit with easy reset (compared to fuses).

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