S/N	Name		Unit	Data
S/N	Name		Unit	12kV	24kV
1	Rated Voltage		kV	12	24
2	Rated Frequency		Hz	50	50
3	Rated currency		A	630 1250	630 1250
4	Rated short-circuit breaking current		kA	20 25 31.5	20 25 31.5
5	Rated peak withstand current		kA	50 63 80	50 63 80
6	Rated short-time withstand current / duration		kA/S	20/4 25/4 31.5/4	20/4 25/4 31.5/4
7	Rated short circuit closing current (peak)		kA	50 63 80	50 63 80
8	Rated operation sequence		times	0-0.3S-C0-180S-CO	0-0.3S-C0-180S-CO
9	Mechanical life		times	10000	10000
10	Rated short-circuit breaking current breaking times		times	30	30
11	1min Power frequency withstand voltage	(wet) phase, ground/fracture	kV	34/35	64/50
11	1min Power frequency withstand voltage	(dry) phase, ground/fracture	kV	42/49	65/79
12	Lightning impulse withstand voltage (peak) phase to phase, phase to ground / fracture		kV	75/85	125/145
13	Secondary circuit 1min power frequency withstand voltage		V	2000	2000

Main mechanical characteristics of the circuit breaker

S/N	Name	Unit	Data
S/N	Name	Unit	12kV	24kV
1	Contact opening distance	mm	9±1	12±1
2	Contact over-travel distance	mm	2⁺¹_-0.5	3±1
3	Opening speed	m/s	1.4±0.2	1.4±0.2
4	Closing speed	m/s	0.6±0.2	0.7±0.2
5	Contact closing bounce time	ms	≤2	≤2
6	Distance between the phase	mm	340	380
7	Different period of three phase closing(opening)	ms	≤2	≤2
8	Main circuit resistance per phase / with CT / with CT band isolation	μΩ	≤50/≤70/≤120	≤50/≤70/≤120
9	Closing time	ms	30~60	25~60
10	Opening time	ms	20~45	20~50
11	Energy storage motor rated power	W	40	70
12	Circuit breaker body weight	kg	70	85

Switch appearance and size

Product Tags:

schneider vacuum circuit breaker

construction of vacuum circuit breaker

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