RELAYS Panasonic

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Panasonic is part of a large worldwide groupselling relays and associated switching products under different brand names in different territories.The conditions of use in some territories may differ from those customary in Europe. In particular there are often major differences in regard to national and international specifications, such as UL, CSA, VDE, SEV, EVE, SEMKO, etc. Thus, when considering contact loads as stated in this catalogue (e.g. 10 A, 30 VDC for the SP relay) its hould be understood that these values are not necessarily an absolute maximum but tested ratings. Mostly the stated value has been tested for a certain life expectancy as stated by the manufacturer or the respective test house. Thus, under different conditions, the stated “maximum” may, in practice, be safely exceeded.

Vydal: Panasonic Electric Works Czech s.r.o. Autor: Panasonic

Strana 778 z 1090

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Poznámky redaktora
3.5mm. 2. Inindependentchambers,thecontacts“a”and“b”arekeptapart byabody/ caseseparatororbythecarditself. 576 Energized (whenno. ds 61405 sf3: 180413D . 6A250VAC R9919003(SF3) 6A250VAC 97. Independent COMenablesdifferingpolecircuit configurations.1 10197.5mm.020inch.01 6A250VAC SAFETY STRUCTURE RELAYS T t s d c e w g a s ( r d , a l i , s e s , f e a d r f e . Contact rating E43149 6A250VAC LR26550etc. 3FormA1FormBcontact Structurewithindependent COMcontact of(3FormA1FormB), contacts.SF3 SAFETY STANDARDS UL/C-UL(Recognized) CSA(Certified) TÜV(Certified) SEV FileNo. F d I a m . Contact rating FileNo. contact welds.020inch.5mm. Contact rating FileNo.1 10376 99. 3contact iswelded) Becausetheweldedcontactspringisattachedtothe card,thearmaturehasbecomeinoperative. Structure Operation 1. Eachofthethreeform“a”contacts(No. 1,2,and4) maintainagapofgreaterthan0. Inthediagramontheleft,thelowercontact “b”have weldedbuttheuppercontact “a”maintainatagapof greaterthan0.Theoperation ofeachcontact isregulatedbythemovementoftheothercontact. Separatechambermethod (3FormA1FormBtypes) Preventsshortingandfusingofspringsandspring failureowingtoshort-circuit current. Subsequentcontact movementissuspendedandthe weldcanbedetected Thetwocontacts“a”and“b”arecoupledwiththesamecard.020inch. Asshownonthediagramontheleft, evenifthe operatingspringsnumbered 1and2thereisno shortingbetween“a”and“b”contacts. Rating FileNo. If the No. Forcedoperationmethod (3FormA1FormBtypes) Evenwhenonecontact isweldedclosed,theother maintainsagapofgreaterthan0. Thismakesitpossibletodesign variouskindsofcontrol circuitsandsafetycircuits