Cable choice.
An important element of assessment is the length of the cable. Each meter of the cable causes a voltage drop proportional to the value of the current that runs through it, if cosf = 1 we have: V = IxR.
V = voltage drop, I = current, R = resistance of the cable. In the case of inductive loads (solenoid valves, motors, etc.) or with variable currents, the higher current peak must be considered to 
avoid even temporary loss of power, which could hinder the proper functioning of the equipment. The longer is the cable, the greater the voltage drop, the IEC allows maximum values drop from 3% to 5% of rated voltage. Greater values are admitted only for the current peaks (e.g.: engines starting), if they do not create functioning problems. To minimize the voltage drop the cable section should be increased. Here are some tables that can help to easily calculate the minimum theoretical cable section. See tables 3 and 4 on the page http://www.shield.net/files/catalogue/support/2.2.pdf
For example, an average continuous current 1 A with section 0,34 mm2 and cable length 10 m generates a voltage drop of 1,3 V, which is approximately 5% of 24 V.
Posts Tagged ‘43650’
Cable Maximum Voltage Rating and Mechanical Strength
Posted in cable, connectors, distribution box, spider, splitter, tagged 175301 803, 43650, 61076, automation, cable, connectivity, connector, connectors, IEC 60204-1, industrial, manufacture, manufacturing, production, pvc, rating, section, spider, voltage on June 25, 2010| Leave a Comment »
Tips to choose a cable.
The maximum voltage depends on the material characteristics, the conductor insulation thickness and the outer sheath thickness. The insulation must be sufficiently resistant to prevent even accidental crushing situations, so different uses can have different requirements of project. Norms as UL and CSA (American), IEC (International) and EN (European) set values which are not always equal to each other and sometimes refer only to heavy employment, such as cables for power transmission.
For the transmission of signals inside industrial machinery, it is frequent to use reduced thickness which refers to commercial standards which are not supported by norms, such as cables LiYY and FROR. The advantage of using reduced thickness is particularly evident in the smaller volume occupied by bundles of cables. The reference nominal voltage is generally at least 300 V. On the market there are also low-cost cables in PVC, with extremely reduced thickness, which may not be compatible with the safety standards for specific applications; it is advisable to carefully evaluate the characteristics of the products.The norm IEC 60204-1 (Machinery Safety) recommends the minimum section of the cables according to the application as well, see table 1 on page http://www.shield.net/files/catalogue/support/2.2.pdf . The norm allows smaller sections only if the mechanical protection is sufficiently guaranteed, for example with conduits.
Manufacturer of #M12 and M8 connectors
Posted in connectors, tagged 175301 803, 43650, 61076, automation, cable, cabled, cables, cabling, connection, connectivity, connector, connectors, copper, DIN, electronic, electrovalve, EN, fep, how to, hydraulic, industrial, IP68, iso, make, manufacture, manufacturing, overmoulded, plug, pneumatic, polyurethane, production, pvc, screen, shield, shielded, silicone, socket, soldering, terminal, thread, tinned, unshielded, wire on June 1, 2010| Leave a Comment »
Shield manufacturs #IEC 61076, IEC 60947-5-2 #M8 and M12 circular #connectors, angled or straight, with shielded or unshielded cables, halogen free polyurethane cables, PVC or silicone cables, dynamic or static application; circuits: Led or special circuit available. Ratings up to 4A, 250V. Clean design.
DIN 43650 connectors
Posted in connectors, tagged 175301 803, 43650, 61076, architecture, art, automation, baby, beach, bike, bird, birthday, black, blue, cable, cabled, cables, cabling, california, canada, canon, car, cat, chicago, china, christmas, city, clouds, concert, connection, connectivity, connector, connectors, copper, DIN, dog, electronic, electrovalve, EN, england, europe, family, fep, festival, film, how to, hydraulic, industrial, IP68, iso, make, manufacture, manufacturing, overmoulded, plug, pneumatic, polyurethane, production, pvc, screen, shield, shielded, silicone, socket, soldering, terminal, thread, tinned, unshielded, wire on May 30, 2010| Leave a Comment »
These connectors are also called as EN 175301-803, ISO 4400, ISO 6952, ISO 15217 #electrovalve #connectors. They can be made with shielded or unshielded #cables, halogen free polyurethane cables, PVC or silicone cables with dynamic or static application. Ratings up to 10A, 250V. Electronics: custom electronic circuit design available. This connector style is also available as field attachable version, with screw terminals or crimp contacts.
Link to www.shield.net .
DIN 43650 electrovalve connector
Connectors with 7/8″ thread metal nut
Posted in connectors, tagged 175301 803, 43650, 61076, automation, cable, cabled, cables, cabling, connection, connectivity, connector, connectors, copper, DIN, electronic, electrovalve, EN, fep, how to, hydraulic, industrial, IP68, iso, make, manufacture, manufacturing, overmoulded, park, party, people, photo, plug, pneumatic, polyurethane, portrait, production, pvc, red, rock, screen, sea, shield, shielded, show, silicone, sky, snow, socket, soldering, spain, spring, street, summer, sunset, taiwan, terminal, thailand, thread, tinned, tokyo, travel, tree, trip, unshielded, usa, vacation, water, wedding, white, winter, wire, yellow on May 30, 2010| Leave a Comment »
Shield manufactures #connectors for industrial #hydraulic, #pneumatic, electrical auto
mation, illumination, trucks and various construction equipments. These photos show 7/8″ circular angled and straight connector series with shielded or unshielded cable. The cable materials can be chosen among a wide choice: halogen free, polyurethane, PVC, silicone, etc. Dynamic or static application. 2, 3, 4, 5, 6, 14 poles.
Gender configurations can be: standard male, female and hybrid male-contacts / female-thread, female-contacts / male-thread. Ratings up to 13A, 600V. IP68 over-molded cables. Clean design.
Receptacle can be supplied with frontal or rear assembly method.
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