The DC MCB (Miniature Circuit Breaker) is a solar protection device that protects our electrical equipment from overloads and short-circuits. They are designed to protect the electric circuits and other appliances by automatically tripping in no time when an abnormal current is detected.
Miniature circuit breakers are classified into two types: DC MCB and AC MCB. Both types of MCBs are further distinguished by their current carrying capacity like 16A, 25A, 32A, 40A, 63A & 125A.
If the current exceeds the device’s rated current carrying capacity, it interrupts the flow of electric current by breaking the circuit and protects your appliances from overload and short-circuits.
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#1. Solar DC MCB
A DC miniature circuit breaker is a small but important part of any solar system. This small solar protection device is used to protect devices that operate on direct current (DC) power, like solar panels and solar batteries.
DC MCB can sense when the current (Ampere) coming from the solar panels exceeds a certain threshold. In the event of overcurrent, it will trip automatically and protect the DC appliances/components as well as DC circuit from damage.
Price List Of Solar DC MCB
Kenbrook Solar offers a complete range of MCB for solar at very affordable prices. You can see and compare the prices below.
- (Inclusive of all taxes) Prices can vary ± 3% to 5% depending on location, promotions and availability, and solar brand.
- Check our Online Solar Shop or Amazon Store for latest price and stock availability.
Read more about: Solar Protection Devices – SPD, MCD, DC Fuse, ACDB & DCDB At Best Price
#2. 16A Sigma DC MCB
The 16A MCB for solar is a 2 pole circuit breaker with an operational voltage rating of 500V DC. The device protects your DC circuit and DC appliances against extra amperes.
With quick tripping, fireproof and durable material, the MCB provides the best performance and high reliability. It possesses a high breaking capacity with its strong and eco-friendly design material.
Specifications of 16A Sigma DC MCB
The copper-coated plastic material uses thermal-magnetic technology to carry and break currents at required conditions. The colour indicators are equipped to improve productivity. Besides, there are several other specifications as follows.#3. 25A Sigma DC MCB
The 25A DC Miniature Circuit Breaker model from Kenbrook Solar Sigma comes with a current rating of 25 Amps and a voltage rating of 500 Volts. The standard circuit breaker provides protection against overload and short-circuit.
Talking about the features, it has colour indicators, a quick tripping system, fireproof and durable material and high breaking capacity.
Specifications of 25A Sigma DC MCB
The heavy-duty 25A MCB for solar from Kenbrook Solar Sigma is highly sensitive and quickly responsive. The specifications that make it extremely beneficial are mentioned below in the table.#4. 32A Sigma DC MCB
The 32A Sigma DC MCB is a short-circuit preventing device that is rated 32 Amps for current and 500V for voltage. The automatic circuit breaking device uses a highly efficient electromagnetic trip system to ensure complete protection.
The 32A model is extremely reliable when it comes to operation. Its quick disconnection technology is highly efficient to protect the DC side of the circuit.
Specifications of 32A Sigma DC MCB
A 32A MCB model of Sigma is loaded with exclusive features like colour indicators, high breaking capacity, fireproof material and high sensitivity. For more details, have a look at the table mentioned below.#5. 40A Sigma DC MCB
The 40A Sigma MCB for solar provides complete overload protection with its highly advanced tripping system and thermal-magnetic technology. The device is rated with 500V and 40A.
The features of the 40A MCB include green and red indicators, copper-coated plastic material, best performance and reliability.
Specifications of 40A Sigma DC MCB
Mentioned below is the list of specifications that a 40A MCB from Kenbrook Solar Sigma possesses.#6. 63A Sigma DC MCB
This model from Kenbrook solar is rated 500V 63A. The DC MCB breaks the circuit in case of overload to protect the DC circuit and the equipment connected.
It takes no time to break the circuit and ensure safety. The highly sensitive and quick responding device is equipped with colour indicators to provide better output while the high breaking capacity ensures high performance.
Specifications of 63A Sigma DC MCB
The 63A Sigma MCB is a feature-loaded gadget that is fireproof, durable, quick tripping and intelligently designed. Other splendid specifications of this model of MCB are mentioned in the table below.#7. 125A Sigma DC MCB
The 125A MCB from Kenbrook Solar Sigma is designed to protect your DC applications and DC circuit from short-circuit. The device is highly advanced and is designed with high-grade material.
Equipped with a quick responding electromagnetic trip system, the MCB works to extend the life of your electrical circuit. It is designed with plastic material with a copper coating hence it is lightweight, fireproof and durable.
Specifications of 125A Sigma DC MCB
Kenbrook solar manufactures the best 125A MCB for solar at an affordable price. For more information, refer to the table below.#8. AC MCB For Solar
An AC MCB is a type of miniature circuit breaker that is designed to protect our sensitive appliances and electrical circuits that run on alternative current (AC). These small solar protection devices can be used everywhere, whether it is a residential place or a commercial place.
Just like DC MCBs, it senses the increase of amperes in AC power supply. When the current supply exceeds the rated capacity of a MCB, it trips automatically to protect your electrical appliances and circuits from overload/short-circuit.
Price List Of Solar AC MCB
There are various models in solar AC MCBs also. You can see the best possible prices of AC MCBs below.
AC MCB Model | Selling Price | Buy It Now |
32A Sigma AC MCB (1Ph- 2 Pole) | Rs. 309 | |
40A Sigma AC MCB (1Ph- 2 Pole) | Rs. 389 | |
32A Sigma AC MCB (3Ph- 4 Pole) | Rs. 665 | |
63A Sigma AC MCB (3Ph- 4 Pole) | Rs. 975 |
- (Inclusive of all taxes) Prices can vary ± 3% to 5% depending on location, promotions and availability, and solar brand.
- Check our Online Solar Shop or Amazon Store for latest price and stock availability.
#9. Choose Best MCB Rating
The right size for the DC MCB is determined considering the current range of the circuit where the device is needed to be installed. To provide you with an idea, mentioned below is the table of most suitable MCB rating for a range of current.
Current Range | Most Suitable MCB Rating |
0A – 12.5A | 16 AMP MCB |
13A – 20A | 25 AMP MCB |
21A – 25.5A | 32 AMP MCB |
26A – 32A | 40 AMP MCB |
33A – 50.5A | 63 AMP MCB |
51A – 100A | 125 AMP MCB |
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Frequently Asked Question
MCB stands for Miniature Circuit breaker. It is a small protection device that protects our appliances as well as circuits from excess current supply.
Yes, there are AC MCBs and DC MCBs for AC circuits and DC circuits, respectively.
DC MCBs can detect the increase of amperes in DC power supply. So it trips accordingly to break the circuit and protect the DC devices.
We have provided a chart below, you can compare and choose the best capacity MCB from there.
For a standard 2 ton AC, you should go for 40A MCB.
MCB stands for Miniature Circuit Breaker.
The price of 40A DC MCB is Rs.549.
MCBs are protection devices. For complete protection of your appliances, it is required. However, MCBs are not mandatory.
No. AC MCBs can’t be used for DC circuits and DC MCBs can’t be used for AC circuits.
For buying DC MCB & AC MCB, you can contact us. You can also buy it online from our Amazon Store.
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✍️ Written & Updated By: Bhanwar Chauhan On: 18/04/2022
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