Group: Matsushita Electric Works
Catalog excerpts
Maximum Switching Capacity This is listed in the data column for each type of relay as the maximum value of the contact capacity and is an interrelationship of the maximum switching power, maximum switching voltage, and maximum switching current. The switching current and switching voltage can be obtained from this graph. For example, if the switching voltage is fixed in a certain application, the maximum switching current can be obtained from the intersection between the voltage on the axis and the maximum switching power. բĦ or less.We recommend that you verify with one of our sales offices regarding usage. Nominal Current. ו Coil Resistance This is the DC resistance of the coil in DC type relays for the temperature conditions listed in the catalog. (Note that for certain types of relays, the DC resistance may be for temperatures other than the standard 20C Е Minimum switching capability This value is a guideline as to the lowest possible level at which it will be possible for a low level load to allow switching. The level of reliability of this value depends on switching frequency, ambient conditions, change in the desired contact resistance, and the absolute value. Please use a relay with AgPd contacts if your needs analog low level loads, control, or a contact resistance of 100 m Nominal Operating Current The value of current flow in the coil when nominal voltage is impressed on the coil Օ Nominal Operating Power The value of power used by the coil at nominal voltage. For DC coils expressed in watts; AC expressed as volt amperes. Nominal Power (W or VA) = Nominal Voltage Maximum Continuous Voltage The maximum voltage that can be applied continuously to the coil without causing damage. Short duration spikes of a higher voltage may be tolerable, but this should not be assumed without first checking with the manufacturer. Օ Maximum Switching Voltage The maximum open circuit voltage which can safely be switched by the contacts. AC and DC voltage maximums will differ in most cases. Maximum Switching Current The maximum current which can safely be switched by the contacts. AC and DC current maximums may differ. Օ Maximum Switching Power The upper limit of power which can be switched by the contacts. Care should be taken not to exceed this value. Maximum Carrying Current The maximum current which after closing or prior to opening, the contacts can safely pass without being subject to temperature rise in excess of their design limit, or the design limit of other temperature sensitive components in the relay (coil, springs, insulation, etc.). This value is usually in excess of the maximum switching current. Օ Drop-Out Voltage (Release or Must Release Voltage) As the voltage on an operated relay is decreased, the value at or above which all contacts must revert to their unoperated position. Rated Switching Power The design value in watts (DC) or volt amperes (AC) which can safely be switched by the contacts. This value is the product of switching voltage x switching current, and will be lower than the maximum voltage and maximum current product. Օ Pick-Up Voltage (Pull-In Voltage or Must Operate Voltage) As the voltage on an unoperated relay is increased, the value at or below which all contacts must function (transfer). MBB Contacts Abbreviation for make-before-break contacts. Contact mechanism where Form A contacts (normally open contacts) close before Form B contacts open (normally closed contacts). > (also referred to as primary or input) Օ Nominal Coil Voltage (Rated Coil Voltage) A single value (or narrow range) of source voltage intended by design to be applied to the coil or input. Coil Designation A black coil represents the energized state. For latching relays, schematic diagrams generally show the coil in its reset state. Therefore, the coil symbol is also shown for the reset coil in its reset state. (secondary or output) Օ Contact Forms Denotes the contact mechanism and number of contacts in the contact circuit. Contact Symbols Form A contacts are also called N.O. contacts or make contacts.Form B contacts are also called N.C. contacts or break contacts. Form C contacts are also called changeover contacts or transfer contacts. > 68հF .) > Single side stable type Non-polarized Polarized 1 coil latching type 2 coil latching type 4-terminal 3-terminal + + + or + or ח + ח ח ++ Form A contacts (normally open contacts) Form B contacts (normally closed contacts) Form C contacts (changeover contacts) All Rights Reserved ש C OPYRIGHT Matsushita Electric Works, Ltd. size="-1">
Open the catalog to page 1Mechanical Life Օ Vibration Resistance, Functional The vibration which can be tolerated by the relay during service, without causing the closed contacts to open for more than the specified time. s) Օ Vibration Resistance, Destructive The vibration which can be withstood by the relay during shipping, installation or use without it suffering damage, and without causing a change in its operating characteristics. Expressed as an acceleration in Gs or displacement, and frequency range. ҕ Shock Resistance, Functional The acceleration which can be tolerated by the relay during service without...
Open the catalog to page 2Notes: 1. Except where otherwise specified, the tests above are conducted under standard temperature and humidity (15C to 35аC Hermetic Seal The plastic sealed type is not a true hermetic seal, there is an exchange of gas molecules through the plastic cover over time. The only true hermetic seals are metal to metal and glass to metal. The entire device is purged with dry nitrogen gas prior to sealing, improving reliability. Օ V.S.W.R. (Voltage Standing Wave Ratio)High frequency resonance is generated from the interference between the input signal and reflected (wave) signal. V.S.W.R. refers...
Open the catalog to page 3Notes:1.Sockets are available for certain PC board relays. (SEB relay, ST relay, etc.)2.M type (solder type) for direct screw mounting of case is also available. (HG relay) > 12 10 9 8 Direction indication* TX relay Fig. 4 PC board self-clinching terminal PC board surface-mount terminal Type PC board through hole terminal Plug-in terminal Quick connect terminal Screw terminal Typical relay type Terminal configuration Typical relay typeGQ, GN, TQ, TN, TK, TX, TX-D relay, DS relay, DS-BT relay, RP relay, JS relay, JW relay, SEB relay, JQ relay, PQ relayTQ, TN, TK, TX, TX-D relayGQ-SMD,...
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