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True Contact Indication for Enhanced Safety
Higher Life with Use of Heavy Duty Contacts




Biconnect Terminals
Line Load Reversibility

Highly effective touch protection against accidental contact . Ergonomically designed,...



Highly effective touch protection against accidental contact . Ergonomically designed,...


Padlocking Facility
Integrated Labour Channel Holder

Safeguarding You & Your Home from Any Mishaps Due to
Used to Control, Master & Regulate the Electrical Power Systems

Enhanced Protection & Reliability
Ensuring Safe & Efficient Circuit Operation

Scratch and solvent resistant body
25 mm² cage terminals



Magnetic Release Setting:(3-5)ln
Electrical/Mechanical Life:10,000 Cycles

Dielectric Strength: 10 kA
Trip Current: 7-10 times of Input Current

Improved, Rugged Design of Operating Mechanism & State of the
State of Art: Specially Designed Arc Runner System Delivers Spectacular



Shunt Trip: Bimetal
Trip Current: 7-10 times of Input Current

Padlocking Facility
Finger Proof Terminal



Magnetic Release Setting:(10-20)ln
Electrical/Mechanical Life:10,000 Cycles

Shunt Trip: Bimetal
Trip Current: 7-10 times of Input Current

Large Terminal Screws
Integrated Labour Channel Holder

Electrical/Mechanical Life:10,000 Cycles
Magnetic Release Setting:(5-10)ln

Magnetic Release Setting:(5-10)ln
Electrical/Mechanical Life:10,000 Cycles



Electrical/Mechanical Life:10,000 Cycles
Magnetic Release Setting:(3-5)ln


AC MCB
Magnetic Release Setting:(10-20)ln


Magnetic Release Setting:(10-20)ln
Electrical/Mechanical Life:10,000 Cycles

Magnetic Release Setting:(10-20)ln
AC MCB

Electrical/Mechanical Life:10,000 Cycles
Magnetic Release Setting:(10-20)ln

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What is a 40 amp MCB used for?
A 40-amp Miniature Circuit Breaker (MCB) is typically used for protecting high-power circuits. This includes appliances like electric geysers, air conditioners, and electric ovens, ensuring safe operation by preventing overloads.
How many watts is a 40 amp MCB load capacity?
A 40-amp MCB can typically handle a load capacity of around 9600 watts. This is calculated using the formula Watts = Amps x Volts, assuming a standard voltage of 240 volts.
What is the maximum load on a 40 amp breaker?
A 40-amp Miniature Circuit Breaker (MCB) can safely handle a maximum load of approximately 9.6 kilowatts (kW) at 240 volts. This ensures your electrical system operates efficiently and prevents overloads.
Can I use a 40 amp breaker on a 6mm cable?
A 40-amp Miniature Circuit Breaker (MCB) is generally suitable for a 6mm cable, provided it's rated for the correct application. Always consult electrical codes and a qualified electrician for precise installation guidance.
What is a 40 Amp MCB?
A 40 Amp Miniature Circuit Breaker (MCB) is an electrical safety device designed to protect electrical circuits from overcurrents, specifically those exceeding 40 amperes. It automatically interrupts the flow of electricity when a fault occurs, preventing damage to appliances and wiring, and reducing the risk of fire.
Are there different types of 40 Amp MCBs?
Yes, 40 Amp MCBs come in various types (e.g., Type B, C, D, K) which differ in their tripping characteristics based on the magnitude and duration of the overcurrent. The appropriate type depends on the specific application and the expected load.
| Latest Models | Price | Discount |
|---|---|---|
| L&T Tripper 40A C-Curve Single Pole MCB, BA10400C | ₹340 | 28% OFF |
| L&T 15kA 40A Double Pole MCB, BB20400B | ₹1,374 | 38% OFF |
| L&T BB30400C 40 A Three Pole Miniature Circuit Breakers | ₹2,026 | 39% OFF |
| B-Five Bsf 40A Double Pole MCB, Bsf-405 | ₹326 | 22% OFF |
| Indoasian Optipro 40A D Curve 4 Pole MCB, 811357, Breaking Capacity: 10 kA | ₹2,421 | 1% OFF |
| Siemens 5SL44407RC 40 A Four Pole MCB | ₹3,071 | 23% OFF |
| Siemens 5SL72407RC Miniature Circuit Breakers 40 A C-Curve | ₹1,638 | 28% OFF |
| Siemens 5SY52407CC 40 A Betagard Miniature Circuit Breakers | ₹2,916 | 1% OFF |
| Siemens 5SL63406RC 40 A Three Pole MCB | ₹1,872 | 26% OFF |
| Siemens Betagard 40A Three Pole D Curve MCB, 5SL73408RC, Breaking Capacity: 15 kA | ₹3,296 | 28% OFF |