Standard Havells MCB Changeover Switch

An MCB Changeover Switch is a compact electrical device that allows safe and convenient switching between two power sources, such as main power (grid supply) and backup power (generator or inverter). It combines the functionality of a Miniature Circuit Breaker (MCB) with that of a changeover switch, providing protection from overloads and short circuits along with manual switching capability.

Key Features of MCB Changeover

• Dual input connection – typically from main supply and generator/inverter.

• Manual switching between sources using a lever or rotary handle.

• Built-in MCB protection for each circuit.

• Compact and space-saving design, suitable for homes and small businesses.

• Safe and reliable operation with clear ON/OFF indicators.

Types of MCB Changeover Switches

1. Manual MCB Changeover – Requires the user to manually flip the switch.

2. Automatic Changeover with MCB – Automatically transfers the load to the backup supply during a power outage (available in advanced models).

Advantages of MCB Changeover Switch

• Protection: Prevents damage from overloads and short circuits.

• Ease of Use: Simple switching between power sources.

• Cost-effective: Combines two functions in one device.

• Safe: Eliminates the risk of backfeed or accidental connections.

Applications

• Residential homes – For switching between electricity board supply and inverter or generator.

• Shops and small offices – To ensure uninterrupted power supply.

• Small industries – For backup power management.

In summary, an MCB Changeover Switch is an efficient and safe solution for managing multiple power sources in low to medium power setups. It ensures continuous power supply with built-in circuit protection, making it ideal for domestic and commercial use.