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40 Amp MCB

Showing 40 out of 358 Products
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C&S Wintrip2 40A C Curve SP MCB, CSMBS1C40
By: C&S
Available on Request
₹536
  • Fin ger proof Terminal

  • Padlocking Facility

ABB SB203 M-D40 40A 10kA Triple Pole MCB, 1SYS273012R0401
Havells Reo 40A Double Pole C-Curve MCB, DHMXCDPZ040, Breaking Capacity: 6 kA
  • Suitable for Protection against Overload & Short Circuit for Motor

  • Ease of Installation

Havells Euro-II 40A Double Pole C Curve MCB, DHMGCDPF040
  • Safety Terminals

  • Cooler Operation

Polycab Polyshield 40A C Curve Triple Pole MCB, GMM203P007
  • High Quality Contact Tips & Energy Saver

  • Positive Contact Position Indication

Devco 40A 10kA C Curve Triple Pole MCB, MCB30400C
By: Devco
Available on Request
₹1,390
  • Used to Control, Master & Regulate the Electrical Power Systems

  • Safeguarding You & Your Home from Any Mishaps Due to

Devco 40A 10kA C Curve Four Pole MCB, MCB40400C
By: Devco
Available on Request
₹1,745
  • Safeguarding You & Your Home from Any Mishaps Due to

  • Used to Control, Master & Regulate the Electrical Power Systems

Siemens 5SL43407RC 40 A Three Pole MCB
By: Siemens
Available on Request
₹2,461
  • Highly effective touch protection against accidental contact . Ergonomically designed,...

Siemens 5SL61407RC 40 A Single Pole MCB
By: Siemens
Available on Request
₹612
  • Highly effective touch protection against accidental contact . Ergonomically designed,...

L&T 15kA 40A Three Pole MCB, BB30400B
By: L&T
Available on Request
₹2,029
L&T 15kA 40A Four Pole MCB, BB40400D
By: L&T
Available on Request
₹2,759
L&T Tripper 40A C-Curve Triple Pole MCB, BA30400C
By: L&T
Available on Request
₹1,267
  • True Contact Indication for Enhanced Safety

  • Innovatively Designed Breathing Channels Between Poles Ensure Cooler Operation

L&T 15kA 40A Three Pole MCB, BB30400C
By: L&T
Available on Request
₹2,029
L&T BB20400C 40 A Double Pole Miniature Circuit Breakers
L&T 15kA 40A Four Pole MCB, BB40400C
By: L&T
Available on Request
₹2,509
L&T BB30400B 40 A Three Pole Miniature Circuit Breakers
Indoasian Optipro 40A C Curve Triple Pole MCB, 811196
By: Indoasian
Available on Request
₹1,722
  • Line Load Reversibility

  • Energy Limitation Class 3

Havells X7 40A Single Pole C Curve MCB, DHMYCSPM040
By: Havells
Available on Request
₹379
Indoasian Optipro 40A B Curve Single Pole Neutral MCB, 811035
  • Line Load Reversibility

  • Energy Limitation Class 3

Indoasian Optipro 40A B Curve Double Pole MCB, 811054
By: Indoasian
Available on Request
₹1,095
  • Line Load Reversibility

  • Energy Limitation Class 3

Indoasian Optipro 40A C Curve Four Pole MCB, 811240
By: Indoasian
Available on Request
₹2,293
  • Line Load Reversibility

  • Energy Limitation Class 3

Indoasian Optipro 40A D Curve 3 Pole MCB, 811319, Breaking Capacity: 10 kA
  • Energy Limitation Class 3

  • Biconnect Terminals

Havells DHMGODPX040 2 Pole PVC Plastic MCB Changeover
By: Havells
Available on Request
₹1,992
  • Compact construction

  • Double break contacts

Avni D-lite 40A C Curve Single Pole Neutral MCB
By: Avni D-lite
Available on Request
₹248
  • Shunt Trip: Bimetal

  • Rated Impulse Voltage: 440 V

C&S Wintrip2 40A C Curve FP MCB, CSMBS4C40 (Pack of 3)
  • Large Terminal Screws

  • Low watt loss-almost 50% of the values prescribed by IS/IEC

B-Five Bsf 40A Single Pole MCB, Bsf-402
By: B-Five
Available on Request
₹143
Chint NB1-63H 40A 10kA B-Curve Four Pole MCB, 179903
By: Chint
Available on Request
₹1,699
B-Five Bsf 40A Four Pole Changeover MCB, Bsf-427
By: B-Five
Available on Request
₹1,341
Halonix Sure 40A Three Pole C Curve MCB, LSD12000068
By: Halonix
Available on Request
₹813
  • Air Vent Provision for Strategic Air Circulation Around Individual Poles

  • Silver Contact Point for Long Durability & Finger Touch Proof

Chint NB1-63 40A 5kA B-Curve Double Pole UL MCB, 180262
Chint eBG 40A 6kA C-Curve Double Pole RoHS MCB, 187507
Chint NB1-63H 40A 10kA D-Curve Four Pole MCB, 179931
By: Chint
Available on Request
₹1,959
Chint NB1-63H 40A 10kA C-Curve Three Pole & Neutral MCB, 201913
Chint NB1-63 40A 5kA B-Curve Single Pole UL MCB, 180269
Chint eB 40A 4.5kA C-Curve Single Pole MCB, 186422
By: Chint
Available on Request
₹299
Chint NB1-63 40A 5kA C-Curve Four Pole UL MCB, 180219
By: Chint
Available on Request
₹1,599
Chint NB1-63 40A 5kA B-Curve Four Pole UL MCB, 182833
By: Chint
Available on Request
₹1,599
HPL 10kA 40A Four Pole C Curve Techno N MCB, NTFPC6-32
C&S Wintrip 2 DC Type Higher Rating DP MCB CSMBS2DC40 (Pack of 4)
5.0 (1 Review)
By: C&S
Available on Request
₹6,323
  • DC MCB

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Frequently Asked Questions about 40 Amp MCB

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.