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Trip Range: 100 A
Impulse Withstand Voltage: 8 kV


Customer Care Number: 1800 103 1313

Adjustable Overload 40 - 100%
ETS (Microprocessor based) Release




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

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

Neutral Protection 50% to 100%
No Line-load Bias



Common Internal accessories for the entire range
Switch disconnectors

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








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



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

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

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




Adjustable Overload Setting Ir= 0.4-1xIn
Optium 2.1 Electronic/Microprocessor Range & Class II Front Face

Ics= 100% Icu
Optium 2.0 Adjustable TM Range & Class II Front Face


Manual, Rotary or Motorized available
Trip Free Mechanism



Current limiting
No Line-load Bias

Adjustable Short circuit 5 - 10 In
Current limiting

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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.