ndb3-30, 50, 100 series hydraulic electromagnetic circuit breakers
● product introduction
ndb3-30, 50, 100 series circuit breakers for equipment (hydraulic electromagnetic type) are applicable to electric systems with the rated current of 100a and the rated voltage not higher than ac480/277v (50/60hz) and dc125v. the products can be used for infrequent making and breaking as well as overload and short-circuit protection. they are widely used in the computer and peripheral equipment, industrial automation system, telecommunication equipment, universal power supply system, ups equipment, locomotive, marine electrical system, aerospace, elevator control system and mobile power supply equipment.
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features
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certification
◆ with the adoption of the hydraulic magnetic tripping device, it integrates the overload tripping with the short-circuit tripping, which is also known as the electromagnetic circuit breaker;
◆ the tripping performance only depends on the magnetic flux generated by the current flowing through the coil, which is little affected by the ambient temperature change. therefore, do not consider the reduced capacity due to high temperature;
◆ cooling time is not required as the circuit breaker is not equipped with thermal elements, which can be re-closed immediately after the fault current disappears;
◆ viscosity of the hydraulic oil is affected by the temperature change: with large viscosity and long delay time at low temperature, it provides the sufficient additional time during startup of the cold-state equipment. with small viscosity and short delay time at high temperature, the circuit breaker can trip quickly to protect the heating load. therefore, this "reverse time limit" facilitates the overload protection;
ndb3-30, 50, 100 series circuit breakers for equipment have obtained china compulsory certification (ccc) for products, ul and ce certification.
实践案例
best practice
- nuclear power generation
- civil building
- rail transportation
- data center
- rail transportation
- commercial building
- charging facility
- wind power generation
- pv industry
- military field
the world's first fourth-generation commercial nuclear power plant snptc pressurized water reactor (pwr) demonstration project
the fourth-generation with proprietary intellectual property rights, one of the 16 national science and technology major projects
- provide molded case products and dc mcb with two-stage/three-stage protection
- main models: ndb2z, ndm2, ndm2z, ndm1
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class a supplier of vanke real estate
the partnership between nader and vanke real estate can be dated back to year 2009. till now, its products have been used in over 1 million households in 65 cities throughout china. over 50 electrical appliance factories have been built under strategic cooperation with vanke and its low-voltage components account for up to 95% of the vanke's supplies.
- products used: whole series products of liangxin electrical
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the world's first new energy air-rail train made its trial run in chengdu, sichuan
the train control cabinet used nader's ndm2/ndm2z products, which will be later applied to the sudan project and the qingdao metro project.
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china mobile - hohhot & harbin data centers
ultra-large-scale, green and energy-saving, centralized world-class cloud computing data center
- ndw3 series frame circuit breaker
- ndm3 series molded case circuit breaker
- ndq3a series dual power products
- ndb2 series miniature circuit breaker
- ndm1 series miniature circuit breaker
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handan (xingtai) - huanghua port railway main line
national level 1 railway project and the "transportation artery" of hebei province
- ndw3 series frame circuit breaker
- ndm3 series molded case circuit breaker
- ndq3a series dual power products
- ndb2 series miniature circuit breaker
- ndm1 series miniature circuit breaker
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qingdao oriental movie metropolis, shandong
a film and television industry base with the world's largest investment
- ndw1 series frame circuit breaker
- ndm2/ndm3 series molded case circuit breaker
- ndc1/ndr1/r2 series industrial control products
- ndm1/ndb2 series miniature circuit breaker
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china's first expressway with electric vehicle fast-charging services
along the 1,262 km beijing-shanghai expressway, 50 fast-charging stations have been built by the state grid corporation of china, with one fast-charging station every 50 km one-way. each fast-charging station is equipped with four 120-kilowatt dc chargers and eight charging piles and capable of simultaneously charging eight electric vehicles which can be fully charged within 30 minutes.
- ndm2l residual current molded case circuit breaker
- ndm1 circuit breaker
- ndc1 ac contactor
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guazhou wind farm project by longyuan (jiuquan) wind power
the world's largest wind farm and 10 million-kilowatts wind power project
- frame: ndw1-2000
- contactor: ndc1-1600
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100mw photovoltaic project in xitieshan, qinghai
china's first photovoltaic power generation project at an elevation of above 3,000 meters
- ndm5z dc1200v molded case circuit breaker
- ndc1 series contactor
- ndb2 series miniature circuit breaker
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国庆大阅兵，全通信保障，按秒对接
无数“nader”断路器默默坚守在自己的工作岗位，承担着供配电的重要角色，为阅兵的可靠通信保驾护航。
- ndm1a系列微型断路器
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