CTB5Z Series Miniature DC Circuit Breaker-Zhejiang Chengtong Electric Power Technology Co.,Ltd.

Model	CTB5Z-63		CTB5Z-80
Frame grade rated current Inm(A)	63		80
Rated current In(A)	6,10,16,20,25,32,40,50,63		6,10,16,20,25,32,40,50,63,80
Pole(Series circuit)	1P,2P,3P,4P
Rated working voltage Ue(VDC)	1P	60,80,125,250
	2P/3P/4P	60,80,125,250,500,750,1000
Rated insulation voltage Ui(V)	1000
Impulse withstand voltage Uimp(kV)	6
Icu(kA) Rated limit short-circuit breaking capacity lcu(kA)	10 Common type:6 /H type:10
Ics(kA) Rated running short-circuit breaking capacity lcs(kA)	Ics=100%1cu
Mechanical life(times)	20000
Electrical life(times)	2500
Reference temperature	+40℃
Release type	Thermal magnetic type
UItimate torque of wiring(N.m)	5

Rated current In(A)	6	10		16,20		25	32		40,50	63	80
Wire cross area S(mm²)	1	1.5		2.5		4	6		10	16	25

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.

CTB5Z Series Miniature DC Circuit Breaker