3 Poles Number and Mini Type Electrical Circuit Breakers
GSB1Z-40 Range Miniature DC Circuit-breaker
1.Application
GSB1Z-40 range miniature DC circuit breaker is mainly used in the DC electric circuits with the rated voltage of up to 250V and the rated working current of up to 250V and the rated working current of up to 40A for purposes of the protection of over-load;short-circuit as well as the non-frequently switching.This circuit breaker can be fitted with the auxiliary contacts,the alarm contacts and the field-exciter tripping,the alarm contacts and the field-exciter tripping accessories to realize the remote breaking-off and signal control functions.
2.Structural features
1)This breaker use module design and can used with shunt trip and auxiliary contacts ect...
2)This product complies with the demands of the following standards:
IEC60947-2<Low-voltage Switchgear and Control Gear Part || low-voltage breaker>
GB14048.2<Low-voltage Switchgear and Control Gear low-voltage breaker>
3)Through the CCC certification,the EU CE safety certification
3.Type and Means
| Type | Instantaneous release type | Pole | Inm Frame rated current | Rated operating current(+30±2℃) |
| GSB1Z-40 | C | 1P,2P | 40A | 1,2,3,6,10,16,20,25,32,40 |
Table 1
Note:user can specially order:A. rated current is 50A and 63A DC breaker
B.3P and 4P DC breaker
4.Working condition and Installation condition
1)Environment temperature: -5℃ ~ +40℃,the average hours of temperature exceeding +35℃ during 24 hours.
2)Elevation:≤2000m
3)There must be not any explosive medium and there must be not any gas which could corrode metal or any conducting dust which could destroy the insulation.
4)Products should be used in no significant impact and vibration place.
5)Installing categories:Class ||,|||
6)Pollution protection:Grade 2
7)Installing condition:mounted by TH35-7.5 standard rail track.
5.Main Technical Parameters
Basic technical parameters(as table 2)
| Type | Pole | DC Rated voltage | UI Rated insulation voltage | Icu Breaking capacity | Operation performance | Operation frequency | |
| Electrical life span | Machine life span | ||||||
| GSB1Z-40 | 1P | 127V | 500V | 10KA | 10000 times | 20000 times | 120 |
| 2P | 127/250V | 20/10 KA | |||||
table 2
Over-current instantaneous action character(as table 3)
| No. | Testing current | Order time | Initial state | Expectancy ending | Benchmark temperature | Note |
| Over-load protection character | 1.05ln | 1h | Cold state | not release | +30±2℃ | -- |
| 1.31ln | within 1h | Heated state | release | 5s in the current trial will be stable up to the value of the agreement. | ||
| Short-circuit protection character | 7ln | within 0.1s | Cold state | not release | -- | -- |
| 10ln | within 0.1s | Cold state | release | -- | -- |
table 3
Time-current characteristic curve(as picture 1)

picture 1
6.Outline and Mounting dimensions
picture 2
| Type | Pole | a | b | c | d | e | f | g |
| GSB1Z-40 | 1P | 80 | 72 | 18 | 40 | 66.5 | 45 | 37.5 |
| 2P,3P,4P | 74 | 68.5 |
table 4
7.Wiring picture
Circuit breaker terminals and polarity mark shown in picture 3
picture 3
8.Operating instruction
1)Be sure to pay attention when wiring in the circuit breaker terminals of the polarity signs,to ensure that the current direction of the internal circuit breaker for the "+" into the most,"-" very outflow(see picture 3)
2)Circuit breaker can be installed vertically,but also the level of installation,does not affect the use of performance
3)Circuit breaker before the current value of the factory setting pass,the user can not adjust
4)Auxiliary circuit breaker contact,and contact the police sub-Lai release,and so on in the annex to General "DZX2/4 Series circuit breaker annex"
9.Order notice
User need attention the entitle type,character and volume of breaker and accessories
For example:GSB1Z-40 20A/1P breaker 200sets
10.Quotation
| Model | Rated current | Poles | Frame size | Unit price |
| GZB1Z-40/1P | 1A,3A,6A,10A,16A,20A,25A,32A,40A | 1 | 40A | USD5.50/pc |
| GZB1Z-40/2P | 2 | 40A | USD10.80/pc | |
| GZB1Z-40/3P | 3 | 40A | USD16.35/pc | |
| GZB1Z-40/4P | 4 | 40A | USD21.65/PC |
table 5
REOO Technology Co.,Ltd., is expert at a wide range of solar panel production lines, solar panel connectors, solar panel cables connectors as well as solar power system. We provide one package service, including design, producing, export, site installations and technical guidance and after-sale service as well.
Our factory is located in Nantong, Jiangsu province of China. It is 2 hours to Shanghai by vehicle. REOO together with SUNTECH, HANWA SOLAR, and QS SOLAR bring the technologic innovation superiority of the industrial cluster into full play.
Our senior technicians are familiar with ISO quality management system, and have strong sense of continuous improvement and responsibility. Our products enjoy competitive price, and have a ready market in USA, South Amercian, Europe, Australia, UK, Spain, Korea, Japan, Malaysia, India, Bangladesh, Vietnam and so on.
Please feel free to contact us if you are looking for a trustworthy source of solar panel machines and accessories. We take superior technical support and customer service as our integral parts of our offering. Any of your enquiries will be highly concerned and will be dealt with immediately. Your satisfaction of our products and services will be guaranteed.
![]() | Ms.Shelly Zhu NANTONG REOO TECHNOLOGY CO.,LTD. Add: Chennan industrial park, Rudong, Jiangsu, China PC226400 Tel: +86 513 8410 5399 Fax: +86 513 8410 5505 Whatsapp:+86 139 6274 9175 Skype: reooshelly |
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