CTM9LR Series Black New Residual Current Operated Circuit Breaker Automatic Recloser-Zhejiang Chengtong Electric Power Technology Co.,Ltd.

MODEL	CTM9LR-250		CTM9LR-400		CTM9LR-630
Frame grade rated current Inm(A)	125/250		400/630		630/800
Pole	3P+N/4P		3P+N/4P		3P+N/4P
Rated current (adjustable) In(A)	(0.4~1.0)In		(0.4~1.0)In		(0.4~1.0)In
Rated insulation voltage Ui(V)	1000		1000		1000
Rated working voltage Ue(V)	AC380/400/415
Rated impulse withstand voltage Uimp(kV)	12		12		12
Rated limit short-circuit breaking capacity class	M	H	M	H	M	H
Rated limit short-circuit breaking capacity Icu(kA) (AC400V)	36	50	65	85	65	85
Rated running short-circuit breaking capacity Ics(kA) (AC400V)	25	36	50	70	50	70
Rated short time withstand current Icw(kA)/1s	10		15		15
Rated residual operated current I△n(mA)	30/50/75/100/200/300/500/OFF step regulation(non time delay type；50/75/100/200/300/500/800/1000/OFF step regulation(time delay type；
Overvoltage operated value	280V±5% default as (OFF), and it can be(ON) 310V±5%(photovoltaic)
Undervoltage operated value	165V + 5% default as (OFF), and it can be(ON)
Flashover distance (mm)	0
Back-up protection	Magnetic trip/ thermal magnetic trip

Model	Contour size						Installation size			External copper busbar size	Zero flashover hood	Specification of mounting screw	Wiring screw
Model	L	W	H	L1	H1	L2	A	B	C	D	G
Oujang CTM9L R-250	234	142	120	213	36	22	194	70	35	25	28	M4X85	M8X20
Oujang CTM9L R-400	335	195	175	303	40	33	265	96	48	30	45	M6X65	M10X35
Oujang CTM9L R-630	335	240	176	299	38	37	265	116	58	40	45	M6X65	M12X40

Q: Can circuit breaker specifications be customized based on project parameters?

Support customization requirements such as parameter tuning, communication protocol, wiring method, and appearance identification. The R&D team can provide adaptation solutions for engineering drawings.
Q: Can samples and testing reports be provided before procurement?

Samples can be applied for, and a complete set of materials such as third-party testing certificates, high-tech/specialized and new qualification documents, product qualification certificates, etc. can be provided to meet the requirements of bidding and power grid inventory review.
Q: What industries and projects is the product suitable for?

Widely used in industrial and commercial power distribution, photovoltaic new energy, municipal power grid renovation, residential buildings, factory workshops, charging pile supporting facilities, smart parks, old power distribution upgrades and other scenarios.
Q: What products can you offer?

We focus on the research and development, production, sales, and supporting services of intelligent circuit breaker series products.
Q: After we send you the inquiry, how long will it take to receive a response?

We will reply to you within 12 hours after receiving the inquiry on weekdays.

CTM9LR Series Black New Residual Current Operated Circuit Breaker Automatic Recloser