Office Building Residential Civilian 1P 125A Miniature Circuit Breaker

FOB Reference Price:Get Latest Price
$1.30 - $1.50 / Piece | 50 Piece/Pieces (Min. Order)
Report Suspicious Activity
Quick Details
Place of Origin:
Zhejiang, China
Brand Name:
Model Number:
Poles Number:
Supply Ability
Supply Ability:
2000 Piece/Pieces per Day
Packaging & Delivery
Packaging Details
Standard Export Package or according to customs request
Trade Assurance

Trade Assurance 

With Trade Assurance, you're covered for:
1.Financial security
2.Quality assurance
3.Delivery guarantee

How to place an order via Trade Assurance?
>>>Click ME for more<<<

Product Description

Office Building Residential Civilian 1P 125A Miniature Circuit Breaker

CZB3-125 circuit breaker is suitable for AC 50Hz, rated voltage 400V and below, rated current to 125A circuit for overload, short circuit protection, can also be used as a line infrequent operation conversion. The circuit breaker is suitable for commercial office buildings and residential houses;

Meet the GB10963.1, IEC60898-1 standard.

Model and Meaning

Operating conditions

The maximum ambient air temperature does not exceed +40℃, minimum is not less than -5℃,

and the average value does not exceed +35℃.

The altitude of the installation site does not exceed 2000m.

The relative humidity of the atmosphere does not exceed 50% at the maximum ambient

temperature of +40℃. Relative humidity at high temperatures can be relatively high. The monthly

average maximum relative humidity of the wettest month is 90%, and the monthly average of the

month The minimum temperature is +25℃ and takes into account condensation that occurs on

the surface of the product due to temperature changes.

Pollution level is 2.

Installation categories are II, III.

Use TH35-7.5 steel mounting rails for installation.

The inclination of the mounting surface and the vertical surface does not exceed 5°.

Screw the wire tight.


Main technical data


 Rated voltage: 230V ~ (1P), 400V ~ (2P, 3P, 4P)

 Rated current : 80A, 100A, 125A

 Number of poles: 1P, 2P, 3P, 4P

 Instantaneous release type: Type C (5-10In),Type D(10-16In)

The main technical performance parameters

 Rated short-circuit breaking capacity: 6000A

 Mechanical electrical life: 4000 times;

 Overcurrent protection characteristics are refer to Table 1.


No.Rated current(A)Initial stateTest currentTime limitExpected
180~125Cold state1.13In1s<t<120sNo tripping 
2Right after
test number 1
1.45Int≤0.1sTrippingCurrent rises steadily to a specified value within 5S
3Cold state2.55Int<0.1sNo tripping 
4Cold state5Int≥2hTrippingType C
5Cold state10Int≤0.1sNo trippingType D
























Trip characteristic curve refer to Figure 1


For 50mm2 and below wire connection, use the cross-sectional area of the wire with reference

to Table 2.

Rated current(A)Wire range(mm²)










The dimensions are refer to Figure 2, and the mounting rail dimensions are refer to Figure 3.

Mold development

Professional mold development and design, auto parts, surge protectors, contactors and other accessories design and production.

Company Information



Packaging & Shipping


Q1:Are you manufactuiring or selling?

A1:If you want to buy a product, I am a manufacturer; if you want to serve, I am a service provider. My job is to give you the best quality on a cheap basis.


Q2:I can’t find the product on your catalogue, can you make this product for me?
A2: Our catalogue shows most of our products,but not all.So just let us know what product do you need.

We have the professional enginer team which can design and develop the mold to arrive different customer nequirement.

We also have the sales team to offer good service from pre-sale to after-sale.


Q3:If I Have Custom-made Requirement, Do You Have Person To Design According To My Concept?

A3:Certainly.our design team will do for you. 


Q4:How about warranty?

A4:According to the actual situation. Each product will be different warranty,please contact us.


Q5: What’s your warranty terms? 

A5: We offer 12-24 months warranty time.

Q6:What is payment terms?

A6: T/T,Paypal,Western Union and L/C isacceptable.Please be sure that we can receive the same amount of the Invoice. And you can pay money In RMB. No problem.

contact us