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Information on the GO - Unique Knowledge Manager (QR Code)
Innovative Accessories viz. Short Circuit Alarm Switch, Illuminated Handle, Shunt






Current Limiting Type, Direct Mounting Arrangement for Extended Rotary Handle,
Adjustable Overload From 63-100% & Neutral Protection for All Breakers


Microprocessor Trip Unit with LSI Protection, Adjustable Overload with Delay/Short
Neutral Protection for All Breakers as Standard, Direct Mounting Arrangement

I2T ON/OFF for Precise Coordination, Dedicated Pre Trip Alarm Contact
Microprocessor Trip Unit with LSIG Protection, Adjustable Overload with Delay/Short

Current Limiting Type, Direct Mounting Arrangement for Extended Rotary Handle,
Thermal Magnetic Trip Unit with Adjustable O/L & S/C

Neutral Protection for All Breakers as Standard, Direct Mounting Arrangement
I2T ON/OFF for Precise Coordination, Dedicated Pre Trip Alarm Contact



Knowledge Manager (QR Code)
Common Internal accessories for the entire range




Innovative Accessories viz. Short Circuit Alarm Switch, Illuminated Handle, Shunt
Common Internal accessories for the entire range



ETS (Microprocessor based) Release
Neutral with 100% rated current

Customer Care Number: 1800 103 1313

LSIN protection
Neutral Protection 50% to 100%




Impulse Withstand Voltage: 8 kV
Trip Range: 100 A




Optium 2.1 Electronic/Microprocessor Range & Class II Front Face
Ics= 100% Icu

Optium 2.0 Adjustable TM Range & Class II Front Face
Adjustable Short Circuit Setting Isd= (5-10)xIn





Common Internal accessories for the entire range
Innovative Accessories viz. Short Circuit Alarm Switch, Illuminated Handle, Shunt


No Line-load Bias
FMU (Thermal Magnetic) Release
Hang on, Loading More
What is a 630 Amp MCCB?
A 630 Amp MCCB (Molded Case Circuit Breaker) is an electrical safety device designed to protect electrical circuits from damage caused by overcurrents, including overload and short circuits. The 630 Amp rating indicates its maximum continuous current carrying capacity.
What are the main functions of a 630 Amp MCCB?
The primary functions of a 630 Amp MCCB are to provide overcurrent protection (both overload and short-circuit) and to act as a switch to safely disconnect a circuit when necessary, preventing equipment damage and potential fire hazards.
Where are 630 Amp MCCBs typically used?
630 Amp MCCBs are commonly found in industrial and commercial applications, such as main distribution panels, large motor protection, power factor correction equipment, and in systems where high current loads are present.
What is the difference between an MCCB and an MCB?
While both protect circuits, an MCB (Miniature Circuit Breaker) is typically used for lower current ratings (up to 100A) and in residential or light commercial settings. An MCCB has higher current ratings (like 630A) and is more robust, often featuring adjustable trip settings for greater flexibility in industrial environments.
What are key considerations when selecting a 630 Amp MCCB?
Key considerations include the required breaking capacity (kA rating), thermal and magnetic trip settings (which may be adjustable), voltage rating, pole configuration (e.g., 3-pole), environmental conditions, and any specific application requirements like earth leakage protection.