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Provision of theimai memory: OT-J/OFF
Inbuilt ground fault pratecbori available 20% to 100% of tn

Adjustable short circuit from 1.5-1 Olr
Adjustable Overload from 0.5 - 1.0ln





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






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

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, Pre Trip Alarm Contact to...
Microprocessor Trip Unit with LSIG Protection & OLED Display, Multifunction

Microprocessor Trip Unit with LSIG Protection & OLED Display, Multifunction
Adjustable Overload with Delay/Short Circuit with Adjustable Delay/Ground Fault &

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












Trip free mechanism
Fixed Overload

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

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

Microprocessor based trip unit
Innovative Accessories viz. Short Circuit Alarm Switch, Illuminated Handle, Shunt

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




Common Internal accessories for the entire range
Microprocessor based trip unit


Impulse Withstand Voltage: 8 kV
Trip Range: 100 A

Protection type LSIGN
Trip Range: 100 A
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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.