ʻO ka wehewehe pōkole:

Generala

S7 he kiʻekiʻe o kēia manawa palena hana e kaupalena i ka ikehu luku ma muli o ka pōkole kaapuni i ka nui loa. Noi: No ka pale ʻana i nā kaula a me nā mea hanats e kūʻē i ka ukana nui a me ke kaapuni pōkole.

Nā lula maʻamau no ke koho ʻana iā MCB.

ʻikepili ʻenehana o ka pūnaewele ma kahi i manaʻo ʻia:

ʻO nā ʻōnaehana honua, ka manawa pōkole pōkole ma ka wahi hoʻonoho kaapuni. ka mea pono mau emi iho ma mua o ka haʻihaʻi ʻana o kēia hāmeʻa, ka uila uila maʻamau.

Aia 3 mau hiʻohiʻona curve no ka hana magnetic:

ʻO ka pale B (3-5In) ka pale a me ka hoʻomalu ʻana i nā kaapuni i nā kaula lōʻihi ma TN a me IT SYSTEMS.

C curve (5-10In) ka pale a me ka hoomalu ana o na kaapuni i ka oi aku a me ka pōkole; pale no ka haawe resistive a me inductive me ka haʻahaʻa inrush au.

ʻO ka pale D (10-20In) ka pale a me ka hoʻomalu ʻana i nā kaapuni e kūʻē i nā overloads pōkole pōkole; pale no na kaapuni e hoolako ana i na haawe me ke au komo nui ma the pani kaapuni (LV/LV nā mea hoʻololi, nā kukui wāwahi).