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Frequently Asked Questions about Miniature Circuit Breakers (MCB)

April 1, 2021 | POSTED IN: FAQs

Frequently Asked Questions about Miniature Circuit Breakers (MCB)

[vc_row type="in_container" full_screen_row_position="middle" scene_position="center" text_color="dark" text_align="left" overlay_strength="0.3" shape_divider_position="bottom"][vc_column column_padding="no-extra-padding" column_padding_position="all" background_color_opacity="1" background_hover_color_opacity="1" column_shadow="none" column_border_radius="none" width="1/1" tablet_text_alignment="default" phone_text_alignment="default" column_border_width="none" column_border_style="solid"][heading]Miniature Circuit Breakers (MCB)[/heading][divider line_type="No Line"][text-with-icon icon_type="font_icon" icon="icon-pencil" color="Accent-Color"]Looking for equivalent model for PLSM-C16, miniature circuit breaker (MCB) Answer :  You may consider this A9F84116, Schneider miniature circuit breaker (MCB).[/text-with-icon][divider line_type="No Line"][text-with-icon icon_type="font_icon" icon="icon-pencil" color="Accent-Color"]Looking for miniature circuit breaker (MCB), 16A, 3P, and B Curve. For contactor, 25A and coil voltage is 24VDC. Answer : You may consider A9F73316 and LC1D25BD, Schneider Miniature Circuit Breaker (MCB).[/text-with-icon][divider line_type="No Line"][text-with-icon icon_type="font_icon" icon="icon-pencil" color="Accent-Color"]What type of MCB should be used in domestic loads? Answer : 
Type C will be the best for domestic loads.
[/text-with-icon][divider line_type="No Line"][text-with-icon icon_type="font_icon" icon="icon-pencil" color="Accent-Color"]Why should I use 16amp MCB for 11amp load why not 13amp MCB is used? Answer : MCB is the protection of human beings and electrical appliances from electrical shocks caused by current overload or short circuits. There is no 13A MCB, hence, 16A is the option.[/text-with-icon][divider line_type="No Line"][text-with-icon icon_type="font_icon" icon="icon-pencil" color="Accent-Color"]How to differentiate between MCB and RCCB by looking at them? Answer : RCCB will have a test trip button while MCB doesn't have it.[/text-with-icon][divider line_type="No Line"][text-with-icon icon_type="font_icon" icon="icon-pencil" color="Accent-Color"]Does ELCB not have a test trip button? Answer :
ELCB is the same as RCCB, hence, it will have a test trip button.
[/text-with-icon][divider line_type="No Line"][text-with-icon icon_type="font_icon" icon="icon-pencil" color="Accent-Color"]Does RCCB have to be equal or larger current rating with MCB? Does RCCB has to be before or after MCB? If so, how many poles does it have to be?  Answer :
RCCB can be equal but you have to ensure the full load for the MCB(s) are lower than the RCCB when you power up. RCCB is always install before MCB. If your RCCB is 1-phase 2 poles, your MCB will be either 1 pole or 2 poles
RCCB does not protect from overload. If you put the MCB before a RCCB, you are facing a risk that there will no protection from small current leakage arising due to accidental touch by human being or insulation failure
[/text-with-icon][divider line_type="No Line"][nectar_btn size="small" open_new_tab="true" button_style="regular" button_color_2="Extra-Color-1" icon_family="none" url="https://sg.electgo.com/categories/4-miniature-circuit-breakers-mcb" text="Shop for Miniature Circuit Breakers"][/vc_column][/vc_row]
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