博文

目前显示的是 八月, 2018的博文

Relay characteristics parameters terminology

1.Insulation resistance:  it is the impedence when the conductors insulated with insulating material are applied to voltage and it is generally shown in "MΩ". The speculated voltage discribed above are general 500Vd.c.(or 250Vd.c.). 2.Dielectric strength:  it is the voltage value when, within the speculated time, the conductors insulated with insulated material are applied to the voltage and the leakage current is less than the speculated current. The certain voltage above generally is the effective value of AC voltage and unless otherwise stated, the leakage current is generally less than 1mA. 3.Operation time:  it refers to, with the relay in the released state, the elapsed time from the initial application of power to the coil, till the closure of the normal open contacts. It does not include any bounce time, and expressed in "ms". 4.Release time:  it refers to, with the relay in the operation state, the elapsed time from the initial removal of coil

Basic relay contacts parameters terminology

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1.Contact forms : they're the arrangements of relay contacts. The basic contact arrangements are shown in table below, the multi-contact arrangments can be ratiocinated. 2.Contact resistance : it is the total resistance between the contacts, the terminals and spring jointed with contacts, generally shown in mΩ. 3.Contact voltage drop : it generally is, in the load circuit, the total voltage drop between contacts,springs jointed with contact and the terminals. It is generally described as the voltage drop value under the regulated current, for example 50mV(measured in 10A). 4.Contact material : it is the material used in contacts and generally shown in chemistry formula, for example, AgNi represents silver-nickel alloy contacts.  5.Contact rated load : it generally refers to the load of which the contacts can switch reliably under the certain regulated conditions. Generally it is shown as the combination of the voltage and the current. The loads listed in the catalogue ar

Relay development trends upon market since year 2017

Like other components in the electronics industry, power relay technology is moving forward. Current trends in power relays include lower profile packages, less real estate, low input power, higher switching power, higher electrical isolation and higher ambient temperature operation. The above trends are pushing the development of what relays can do in terms of material research, manufacturing techniques and advanced computer aided modeling principles. In terms of size, we see the relay height and overall volume dropping, due to the fact that customers must fit more electronics on their PC boards. The higher electronic content is a direct result of adding more functionality and product features to the end product. With more functionality, this creates the use of more relays, which once again necessitate smaller relays. Also, in terms of height, we see the industry moving to thinner control panel designs. The need for relay input power to be lower is also important. The drivers for t

Working of relays

What is a relay? We know that most of the high end industrial application devices have relays for their effective working. Relays are simple switches which are operated both electrically and mechanically. Relays consist of an electromagnet and also a set of contacts. The switching mechanism is carried out with the help of the electromagnet. There are also other operating principles for its working. But they differ according to their applications. Most of the devices have the application of relays. Why is a relay used? The main operation of a relay comes in places where only a low-power signal can be used to control a circuit. It is also used in places where only one signal can be used to control a lot of circuits. The application of relays started during the invention of telephones. They played an important role in switching calls in telephone exchanges. They were also used in long distance telegraphy. They were used to switch the signal coming from one source to another destina

Relay design and technology

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A relay may be used in circuits where it is not possible to have a direct electrical connection between the control circuit and the output device: eg due to the risk of damage to the circuit from back electromotive force (EMF). A relay is a special type of switch turned on and off by an electromagnet (see the diagram of a simple relay). When a current flows through the coil an electro-magnetic field is set up. The field attracts an iron armature, whose other end pushes the contacts together, completing the circuit. When the current is switched off, the contacts open again, switching the circuit off.            A useful property of relays is that the circuit powering the coil is completely separate from the circuit switched on by the relay. For this reason relays are used where a safe low-voltage circuit controls a high-voltage circuit. The symbol for a relay makes the separation of the two circuits clear by separating the coil symbol from the switch symbol. The relays used i

NBC GP new developed relays

NBC GP new developed transparent relays now start to become one of the best substitution of Omron G2R relays. Omron relays are widely relied upon for their high capacity switching performance characteristics within a number of common applications, such as automotive, household appliances, audio and visual devices, construction, robotics, imaging and communications.  Included in the new product ranges are general purpose SPCO power relays in the G2R series. Standard 10A and high capacity 16A types are available, with clearance and creepage distances of 8mm/8m conforming to EN 61810-1, UL508, CSA22.2, SEV, SEMKO. More information please view  here .

Low profile PCB relays now available with AC coils

Finder's popular low profile relayrange has now been extended for use with AC supply voltages. The new 24VAC and 230VAC versions of the 41 Series are ideal where the use of a DC supply voltage proves unsuitable, or would incur additional cost. Available in single and 2-pole contact versions, with rated switching currents of 8A and 16A, the 15.7mm high relay will find useful applications in electronics, control panels, machine and factory process control systems—particularly where space constraints place limits on height. With a rated coil power of 0.9VA, the low consumption promotes energy saving, and the cadmium-free contact materials conform to current and future REACH and WEEE directives. It also features RTII environmental protection, making it flux-proof for automatic flow soldering. The 41 Series low profile relay can be mounted directly onto the pcb, or into a pcbsocket. It can also be used with a range of 35mm rail-mounted sockets, with screw or screwless terminals –

Congratulations! Wonderful success at HK ELECTRONICS FAIR 2017!

HongKong electronics fair is one of the largest world electronics fairs, attracts a large numbers of exhibitors and customers meeting and cooperating together. Ningbo Baocheng Electronics is as known for PCB relay manufacturing for nearly two decades, also attends this great fair and meet some regular customers and a lot of new friends. We shown our most popular relay series types NB90E, NB90, NB901E, NB901, 922, BS6, GN, GP, CE, BM94 and so on to customers and won good reputations at the fair. We believe our world market share will be enlarged after this fair and our brand BAOCHENG(NBC) will be marked as high quality relay representative in customers' heart. More information please view  here .

What we do

With nearly 20 years relays research and manufacture experience and  the research team composed by top relays technical person, our factory focused on relays product research and technical innovation. Our products include power relays, telecom relays and automotive relays, etc and which all passed UL, cUL, TUV, CQC internal and external safety certification and RoHs and REACH requirements. We always insist the operation concept of “creating and share”,  abide by the service concept of “quality first, service best”  and with the passion of  do every relays well to create Baocheng relays for world famous brand. Baocheng Electronics wish to hand in hand with global customers to pursuit excellent quality and cast perfect products to share happiness life bring by technology. More information please view  here .

Ningbo Baocheng Electronics Co., Ltd.

Ningbo Baocheng Electronics Co., Ltd. is a high-tech enterprise for research and development electromagnetic relays and can quantity produce. Our factory is located in prosperous and beautiful Jiangnan famous city--- Yuyao City of Zhejiang Province, with the convenient transportation as on the north is Hangzhou Bay, on the south is Siming Mountain,  the west is Hangzhou City,  the east is Ningbo Port. Now with modern production workshop more than 5,000 m 2 ,   our factory absorb the internal and external advanced technology, introduce and develop 10 odd automatic production line, operate strictly as ISO9001:2015 international quality management system, and build local service network in many countries and regions, and have global market operation and technical service ability. With nearly 20 years relays research and manufacture experience and  the research team composed by top relays technical person, our factory focused on relays product research and technical innovation. Our

BM940 Relay

RELAY TYPE: BM940 Relay Baocheng export excellent power relay , telecom relays  and automotive relays . 40A switching capability  PCB layout mounting EU&American terminal types available NO,NO&NC contact form optional Environmental friendly product  Outline dimension: 26.8 x 21.5 x 22.3mm Automotive Relays , Automotive Relays for Sale , Factory Contact Ratings Contact Form: 1A, 1C Contact Material: AgSnO2 Contact Load Capacity: 1A: 40A/14VDC 1C: 40A/14VDC; 30A/14VDC Max. Switching Current: 40A Max. Switching Power: Mechanical Endurance: 1*107OPS Electrical Endurance: 1*105OPS Technical Ratings Insulation Resistance: 100MΩ Dielectric Strength(Between coil&contact): 500VAC Operate Time (Max.): 10ms Release Time (Max.): 10ms Ambient Temperature -40℃ ~ 125℃ Terminal Type: THT Coil Ratings Nominal Voltage (6-24)VDC Nominal Coil Power 1.6W,1.9W More information p