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 946 z 1090

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• Under normal use, the relay is designed that the case will not detach. (However, for some polarized relays, this rate change considerably smaller., due differences in power supply type, voltage fluctuations, and rises temperature. • Avoid bending terminals, because it may cause malfunction. tio il • tio e For the operation relays, the power source alm ost always commercial frequency (50 60Hz) with standard voltages 12, 24, 48, 115, 120, 230 and 240V AC. Avoid ultrasonic cleaning all types relays. • not exceed the usable ambient tem perature values listed the catalog. Furthermore, because humming occurs when below the pick-up voltage and when above the rated voltage, care is required with regard power source voltage fluctuations. Also, caution is required, because problems such as layer shorts and burnout the coil may damage and welding, with the occurrence false operation self- maintaining condition. (This applies plastic sealed type relays, too. Please avoid the use silicone-based resins near the relay, because doing so may result contact failure. The DC type relay coil resistance varies due to bient tem perature well its own heat generation the extent of about 0. • Use the flux-resistant type sealed type autom atic soldering be used. For installation adverse environments, one the sealed types should considered. [2] PRECAUTIONS REGARDING COIL INPUT Application the rated voltage the most basic requirem ent for accurate relay operation. Also, the type, shading coil resistance loss, magnetic circuit eddy current loss, and hysteresis loss exit, and because lower coil efficiency, is normal for the tem perature rise be greater than that for the type. For the type, there inrush current during the operation tim (for the separated condition the armature, the impedance low and current greater than rated current flows; for the adhered condition the armature, the impedance is high and the rated value current flows), and because this, for the case of several relays being used parallel connection, necessary give consideration power consumption. For example, the case motor starting, the power source voltage drops, and during the humming the relay, reverts the restored condition, the contacts suffer burn consideration for changes coil resistance, etc. maintain initial performance, the case should not be removed. • For proper use, read the main text for details. The physical phenomena the contacts and contact life greatly vary depending on the type load and the operating conditions. • Use alcohol based cleaning solvents when cleaning performed using a sealed type relay.General Application Guidelines BASICS RELAY HANDLING • maintain initial performance, care should taken avoid dropping or hitting the relay. Therefore, sure to carefully check the type load and operating conditions before use. • Proper usage requires that the rated voltage impressed the coil. • sure the coil impressed voltage does not continuously exceed the maximum allowable voltage. the extent that is possible, the standard voltages should be selected.) • Care should taken observe correct coil polarity (+, for polarized relays. However, because this value pick-up current nothing more than guarantee of just barely moving the armature, the variation energizing voltage and resistance values, and the increase in coil resistance due tem perature rise, must given consideration for the worst occur the voltage applied exceeds the maximum that can applied continuously. • The rated switching power and life are given only guides. Because this, when the voltage other than the standard voltage, the product special order item, and the factors price, delivery, and stability characteristics may create inconveniences. • Use the relay atm osphere at standard tem perature and humidity with minimal amounts dust, SO2 , H2 organic gases is recommended. possible condition relay operation, making necessary consider the current value 1. Also, because the extensive use relays limit devices in place meters for both voltage and current, and because the gradual increase decrease current impressed the coil causing possible delay ovem ent the contacts, there is the possibility that the designated control capacity may not satisfied.) ds_x61_en_relay_technical_information_091112D. • guide, use Faston mounting pressure 70N 7kgf} for relays with tab terminals. • tio e For the operation relays, standards exist for power source voltage and current, with voltage standards set at 5, 12, 24, 48, and 100V, but with regard current, the values as expressed catalogs illiamperes of pick-up current. Relay characteristics cannot be guaranteed the case removed.5 tim the pick­ up current. Although the relay will ork if the voltage applied exceeds the pick-up voltage, required that only the rated voltage applied the coil out of 1. Please refer order avoid problems. Thus necessary exercise care. Use rectangular waves for coils and sine waves for coils.4%/°C, and accordingly, the tem perature increases, because the increase pick-up and drop-out voltages, care required. The following section contains precautions regarding coil input