CTM9LR Series Gray Older Model Residual Current Operated Circuit Breaker Automatic Recloser-Zhejiang Chengtong Electric Power Technology Co.,Ltd.

Model	CTM9LR-125		CTM9LR-250		CTM9LR-400/ CTM9LR-630 (Capacity-increased type)			CTM9LR-630 / CTM9LR-800
Frame grade rated current Inm(A)	125/160		250/320		400/630			800/630
Pole	3P+N/4P
Rated current (adjustable) In(A)	(0.4~1.0)In
Rated insulation voltage Ui(V）	1000
Rated impulse withstand voltage Uimp(kV	12
Rated working voltage Ue(V)	AC380/400/415
Rated limit short-circuit breaking capacity class	M	H	M	H	L	M	H	L	M	H
Rated Iimit short-circuit breaking capacity lcu(kA) AC400V	50	85	50	85	50	65	85	50	65	85
Rated nunoing shod-circuit breaking capacity Ics(kA AC400V	35	50	35	50	35	50	65	35	50	65
Rated short time withstand current Icw(kA)/1s	10		10		10			10
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)

Model	Contour size						Installation size			External copper busbar size	Wiring screw	Specification of mounting screw	Arc barrier in&out terminal length
Model	L	W	H	L1	H1	L2	A	B	C	External copper busbar size	Wiring screw	Specification of mounting screw	Arc barrier in&out terminal length
CTM9LR-125	220	122	134	202	29	15	199	60	30	15	M8X20	M4X45	50
CTM9LR-250	240	142	135	218	23.5	20	201	70	35	20	M8X20	M4X45	65
CTM9LR-400	335	195	177	302	40	30	272	96	48	30	M10X35	M6X65	100
CTM9LR-630 Capacity-increased type	335	195	177	302	41	30	272	96	48	30	M10X35	M6X65	100
CTM9LR-630 / 800	355	280	184	316	42	39	284	140	70	40	M12X35	M6X65	100

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 Gray Older Model Residual Current Operated Circuit Breaker Automatic Recloser