Shanghai Huabang Industrial Business Network - Low oil circuit breaker

[Low oil circuit breaker]SW2-63 High voltage low oil circuit breaker

2026-6-10 20:55:09

The SW2 series high-voltage low oil circuit breaker is a three-phase AC 50Hz outdoor high-voltage power equipment, mainly used for control and protection of transmission lines, and can also be used as a contact circuit breaker. This series of circuit breakers is based on a 63kV arc extinguishing unit, using a double tube structure arc extinguishing chamber and a longitudinal and transverse arc extinguishing principle. Form a single or multiple break block structure according to different voltage levels. SW2-63 type single column single fracture surface per phase. SW2-110 type single column double fracture surface for each phase. SW2-220 type double column with four fracture surfaces per phase. The SW2 series low oil circuit breaker is developed based on SW2-60 and SW6-220 through a series of significant improvements. This product has the characteristics of strong series, high breaking current, simple structure, reliable action, and easy installation and debugging

model	name	unit	data	Example diagram
model	name	KV	SW2-63II/1600-25	Example diagram
one	rated voltage	KV	sixty-three
two	Maximum operating voltage	KV	seventy-two point five
three	rated current	A	one thousand and six hundred
four	rated frequency	KA	twenty-five
five	Rated short-circuit breaking current	KA	twenty-five
six	Thermal stable current	KA	twenty-five
seven	Thermal stability time	S	four
eight	Dynamic stability current (peak value)	KA	sixty-three
nine	Rated short-circuit closing current (peak)	KA	sixty-three
ten	When closing (minimum, maximum, rated operating voltage)	KV	zero point two five
	Minimum operating voltage	KV	zero point two
eleven	Rated operating voltage	KV	zero point two two
	Maximum operating voltage	KV	zero point two five
twelve	Rated operating sequence		0-0.5 S-CO-180 S-CO
thirteen	Net weight of circuit breaker	Kg	one thousand one hundred and forty
fourteen	oil weight	Kg

SW2-63 High Voltage Low Oil Circuit Breaker

[Low oil circuit breaker]SW2,SW4,SW6 Series Outdoor High Voltage Low Oil Circuit Breaker

2026-6-10 20:55:00

SW2, SW4, SW6 series outdoor high-voltage low oil circuit breakers

[Low oil circuit breaker]SN10 High Voltage Low Oil Circuit Breaker

2026-6-10 20:54:50

The SN10-10 (C) and SN10-35 (KV) series indoor high-voltage low oil circuit breakers are indoor switchgear in slurry filled 50Hz three-phase AC systems, which can be used for protection and control in industrial and mining enterprises, power plants, and substations.

Main technical parameters of SN10 high-voltage low oil circuit breaker

serial number	Name				unit	Numerical value
						SN10-10 I��C��/630-16	SN10-10 I/ 1000-16	SN10-10 II ��C��1000-31.5	SN10-10 III (C)/1250-40	SN10-10 III (C)/2000-40	SN10-10 III (C)/3000-40
one	rated voltage				KV	ten
two	maximum voltage					eleven point five
three	Rated insulation level		Lightning impulse withstand voltage (full wave)			seventy-five
			Power frequency withstand voltage for 1 minute			forty-two
four	rated current				A	six hundred and thirty	one thousand	one thousand	one thousand two hundred and fifty	two thousand	three thousand
five	Rated short-circuit breaking current		6KV 10KV		KA	twenty		thirty-one point five	40 (Fen-180S-HeFen-180S-HeFen) 31.5 (Fen-0.5S-180S-Fen)
						sixteen
six	Rated operating sequence					Fen-0.5S-180S-Fen
seven	Rated short-circuit closing current (peak)				KA	40;50*		eighty
eight	Rated peak closing current					40;50*		eighty
nine	Rated short-circuit withstand current					16;20*		thirty-one point five
ten	Rated short-time duration				S	four		two		four
eleven	closing time		Electromagnetic mechanism Spring mechanism	not greater than		zero point two
						zero point one five
twelve	Opening time	When electricity		minimum		zero point one		zero point one
		voltage		rated		zero point zero six		zero point zero six	0.07 (main cylinder)
		Source Force		highest		zero point zero six		zero point zero three	0.07 (main cylinder)
thirteen	weight	Circuit breaker body (oil-free) oil (three-phase)				one hundred		one hundred and twenty	one hundred and forty	one hundred and seventy	one hundred and ninety
						six		eight	nine	thirteen
fourteen	Model of the accompanying institution		Electromagnetic mechanism			CD10 I		CD10 I		CD10 III
			Spring mechanism					CT8 I CTB II

If the rated breaking current is 20KA (below 6KA), the rated short-circuit closing current, rated peak withstand current is 50KA, and rated short-time withstand current is 20KA

External installation dimensions of SN10 high-voltage low oil circuit breaker

SN10 type high voltage low oil circuit breaker