ETB-63 Series High Breaking MCB

Applicable Scope

ETB-63 Series high breaking miniature circuit breaker has the features of structure advanced performance reliable, breaking capacity high, appearance elegant and its shell and parts are made of material with impact resistance, strong flame-retardant feature. it is suitable to powel system of 50or 60 frequency, Ue 4oov and below, Ui63Aand below.lt is mainly applied at office building, residence, for lighting, power distribution and overload and short circuit protection of eguipment.Normally, it also can be used as the not freguent transfer of power system, Life more than 10,000 times(on-off) it conforms to the standards lEC60898and GB10963.1.

Model Meaning

Characteristic

Compact Size	Short Circuit Protection	Overload Protection	Short arcing
High Breaking Capacity	Complete accessories	Flame Retardant Material

Technical Parameters

Rated voltage(V)	Pole	Rated current(A)	Rated short circuit breaking capacity Icn(A)
230/400(220/380)	1P, 2P	6、10、16、20、25、32、40、50、63	6000
400	3P, 4P		6000

Current Release Character Diagram

Test current	Rated current	Requested time	Result	Start station	Remark
1.13In	All	t ≤ 1h	Don’t trip	Cool	6000
1.45In	All	t < 1h	Trip	Heat	Current ascends the requested value stably in 5s
2.55In	In < 32A	ls < t < 60s	Trip
2.55In	In > 32A	ls < t < 120s	Trip
3In(B Type)	All	t ≤ 0.1s	Don’t trip	Cool	Auxiliary switch closed and power on
5In(B Type)		t < 0.1s	Trip	Cool	Auxiliary switch closed and power on
5In(C Type)		t ≤ 0.1s	Don’t trip	Cool	Auxiliary switch closed and power on
10In(C Type)		t < 0.1s	Trip	Cool	Auxiliary switch closed and power on
10In(D Type)		t ≤ 0.1s	Don’t trip	Cool	Auxiliary switch closed and power on
20In(D Type)		t < 0.1s	Trip	Cool	Auxiliary switch closed and power on

Multi-machine Side-by-side Installation Correction Factor

1	2	3	4	5	6	7	8	9	> 9
1	0.95	0.9	0.86	0.82	0.795	0.78	0.777	0.76	0.76

Breaking Characteristic Curve

Appearance and installation dimensions