Meba mcb rccb MB1-63-50A | Meba Electric Co., Ltd

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Meba mcb rccb MB1-63-50A

Specification

Meba mcb rccb MB1-63-50A , this series Miniature Circuit Breaker is nice in appearance, reasonable in structure, sound in feature and high in breaking capacity. Installed with standard din rail, it is convenient and easy in usage. It is mainly used in the line of AC 50/60Hz, rated working voltage to 240V/415V, and rated current to 63A as protection against overload and short-circuit. It can be used as infrequent on-and-off operation and changeover.
It complies with standard of GB10963 and IEC/EN60898.

Parameter

Meba mcb rccb MB1-63-50A

Technical parameters

Frame class	63A
Rated working voltage	240V/415V
Rated frequency	50/60Hz
Rated working current	1、3、6、10、16、20、25、32、40、50、63A
Making and breaking capacity	6000A(6~40A)，4500A(50、63A)
Release type	B、C、D
Poles	1、2、3、4P
Mechanical life	20000
Electric life	4000

The over-current tripping unit protection feature

Sequence NO .	Release	Test current I/In	Start state	Tripping time	Expected result
1	B、C、D	1.13In	Cold state	t≤1h	Not tripping
2	B、C、D	1.45In	Start right after the serial NO . 1 test	t＜1h	Tripping
3	B、C、D	2.55In	Cold state	1s＜t＜60s	Tripping
4	B C D	3In 5In 10In	Cold state	t≤0.1s	Not tripping
5	B C D	5In 10In 20In	Cold state	t＜0.1s	Tripping