MCB, an abbreviated form of miniature close
circuit, is a trip switch operated by overload and utilized to protect electric
circuit, especially domestic one as a substitute of fuse. It securely protects
from possible hazards caused by overheating of cables and other electrical
equipments. Glass fuses are replaced by circuit breakers due to their resetting
capacity after tripping. In a house, every single electrical outlet is connected
to a cable or wiring system, which fetches its power via a circuit breaker.
120
Volt And 240 Volt Circuit
For domestic and business use,
two AC voltages i.e. 120-volt and 240-volt are supplied. House appliances like
TV, radio, DVD player, hair dryer, washing machine, computer, blender, toaster,
microwave, vacuum cleaner etc. are delivered with 120 volts.
Some appliances require more
energy and higher voltage to perform. These types of product include centralized
AC, dryers, water heaters, ovens and electric baseboard heat.
Single pole MCB is used with
light appliance and double pole MCB is utilized with the heavy appliance such
as oven, refrigerator, air conditioner, washing machine, etc.
Overall
Dissimilarity
A single pole MCB is used with a 120V circuit
and it consists of one hot wire and neutral wire. Here switching and the
security is harmed in just one
phase.
The double pole MCB is used with a 220V
circuit having two cables or wires. And in case of short circuit to any of the
wires, both poles are ganged together and trip together. Hence, in two pole
MCB, switching and the security are affected in both phases. This type of MCBs
prevents the return current into an electrical machine if there is a failure while
starting the appliance. The extra pole prevents the load current from coming
back into the appliance. In this way, the appliance does not harm anyone.
Not just single or double
pole MCBs, but triple pole MCBs, triple pole and neutral MCBs and 4 pole MCBs
are available in market and each of them are used for varied applications.
To buy
MCB online, visit http://www.bestofelectricals.com/protection-devices/mcbs. At site, you can buy distinct types of branded
MCBs and other quality electrical products.