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 942 z 1090

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) 6 lta e (Pull-In Voltage ust Operate Voltage) increased, the value below which all contacts must function (transfer). Form contacts are also called N. 4 r The design value watts (DC) volt amperes (AC) which can safely be switched the contacts.C. AC and voltage aximums will differ in most cases. 6 t The maximum current which can safely be switched the contacts. and DC current maximums may differ. Nominal Power VA) Nominal Voltage Nominal Current. 2 lta e (Rated Coil Voltage) A single value (or narrow range) of source voltage intended design be applied the coil input. M itc ity Example: Using relay switching voltage 60V DC, the maximum switching current 1A. lta e (Release Must Release Voltage) As the voltage operated relay is decreased, the value above which all contacts must revert their unoperated position. lta e The maximum voltage that can be applied continuously the coil without causing damage.Definition Relay Terminology DEFINITION RELAY TERMINOLOGY COIL (also referred primary input) 1. 8. 5 e This the resistance the coil DC type relays for the tem perature conditions listed the catalog. Contact mechanism where Form contacts (norm ally open contacts) close before Form contacts open (norm ally closed contacts). contacts break contacts.O. Form contacts are also called changeover contacts transfer contacts. This value is the product switching voltage x switching current, and will lower than the maxim voltage and maximum current product. For coils expressed in watts; expressed volt amperes. 8 ity This listed the data column for each type relay the maximum value the contact capacity and an interrelationship the maximum switching power, maximum switching voltage, and maxim switching current. 3 tin t The value current flow the coil when nominal voltage impressed the coil. (*M axim switching capacity given for resistive load. 2 ls Form contacts (norm ally open contacts) , Form contacts • 6 (norm ally closed contacts) Form contacts (changeover contacts) £> ^ Form contacts are also called N. tio n state. Short duration spikes of a higher voltage may tolerable, but this should not assumed without first checking with the manufacturer. 5 lta e The maxim open circuit voltage which can safely switched the contacts. 7. 7 r The upper limit power which can be switched the contacts. The value power used the coil at nominal voltage. CONTACTS (secondary output) 1. The switching current and switching voltage can obtained from this graph. contacts make contacts. For example, the switching voltage is fixed certain application, the maximum switching current can be obtained from the intersection between the voltage the axis and the maximum switching power. Therefore, the coil symbol is also shown for the reset coil its reset state. s Denotes the contact mechanism and number contacts the contact circuit. sure carefully check the actual load before use. (Note that for certain types relays, the resistance may be for tem peratures other than the standard 20°C 68°F. 3 ts Abbreviation for ake-before-break contacts.) ds_x61_en_relay_technical_information_090712D. For latching relays, schematic diagrams generally show the coil its reset state. Care should be taken not exceed this value