General

YCM7YV series hluav taws xob yas rooj plaub Circuit Court breaker (tom qab no hu ua: Circuit Court breaker) yog tsim rau low-voltage power grids with AC 50Hz, rated insulation voltage 800V, rated operating voltage 400V and below, and rated operating current up to 800A. Lub Circuit Court breaker muaj overload long-delay inverse time limit, short-circuit short-delay inverse time limit, short-circuit short-delay fixed time limit, short-circuit instantaneous and under-voltage protection functions. Nyob rau hauv ib txwm muaj xwm txheej, Circuit Court

breaker yog siv rau infrequent switching ntawm circuits thiab infrequent pib ntawm

motors.This series ntawm Circuit Court breakers muaj kev sib cais muaj nuj nqi, thiab nws cov cim cim yog "   "

Txheem: IEC 60947-2.

Cov xwm txheej ua haujlwm

1. Ambient cua kub

a) Tus nqi txwv tsis pub tshaj +40 ℃;

b) Tus nqi qis qis tsis tshaj -5 ℃;

c) Qhov nruab nrab tus nqi tshaj 24 teev tsis tshaj +35 ℃;

2. Qhov siab

Qhov siab ntawm qhov chaw teeb tsa tsis pub tshaj 2000m.

3. Cov huab cua puag

Qhov txheeb ze humidity ntawm huab cua tsis tshaj 50% thaum lub ambient

Qhov kub siab tshaj plaws yog +40 ° C; nws tuaj yeem muaj qhov txheeb ze dua cov av qis dua

kub; thaum lub hli nruab nrab qhov tsawg kawg nkaus kub ntawm qhov ntub dej

Lub hli yog +25 ° C, lub hli nruab nrab qhov siab tshaj plaws ntawm lub hli yog +25 ° C. Tus txheeb ze humidity yog 90%, coj mus rau hauv tus account condensation uas tshwm sim ntawm lub

cov khoom nto vim qhov kub thiab txias hloov.

4. Kev ua qias tuaj

Pollution degree 3, cov khoom siv tau nruab rau hauv Circuit Court breaker muaj cov pa phem 2.

5. Kev teeb tsa qeb

Lub hauv paus ntsiab lus ntawm Circuit Court breaker yuav tsum yog installation qeb III, thiab lub koom haum pab thiab tswj Circuit Court yuav tsum yog installation qeb II.

6. Kev teeb tsa kev teeb tsa.

Circuit Court breakers feem ntau yuav tsum tau ntsia vertically, feem ntau nrog upward thaiv, thiab sab nraud magnetic teb nyob rau hauv lub installation yuav tsum tsis txhob ntau tshaj 5 npaug ntawm geomagnetic teb nyob rau hauv txhua txoj kev.