L INNOV atlon+service SKRC 440 SKRC 440-2 SKRC 660 Dv/Dt SNUBBER NETWORKS Features OLow Cost SKRC 440/660 are economic RC Snubber Networks for up to 500A RMS load current O 660V operation applications.The modules are primarily designed to limit the rate of rise of voitage spikes which may exceed the Dv/Dt rating of SCR"s.Besides protection,the module will also assist In latching SCR*s used for 440V operation OMOV option * O Compact low level Inductive load currents. Dimensions The SKRC Module can also be O Semipack supplled Incorporating an optional MOV * Semistack (Metal Oxide Varistor) forming an excellent Compatible protection unit for semiconductor devices O Encapsulated against high energy level voltage spikes. Module The packaging concept allows modules to OEasy Mounting be mounted directly alongside SEMIPACKS OUL Approved and the electrical connections are made Materials using 2.8mm push on connectors. x TO Speciat Order Ors. Specifications _ a4 Dv/Ot Suppression - will protect SCRs with Ov/Ot rating of 100V/uS nom. Operating Voltages SKRC 440 / SKRC440-2 = 440V RMS 210% SKRC 660 = 660V RMS +#10% Operating Frequency MOV (optional) Weight Temperaiure Range Mounting Holes Packing Encapsulation Materials SKRC 440 & 680 Module Dimensions 92 80 21 {s3ea ons te is t \ Twin 28mm 2 Holes 5.8 dia. ee terminals i ri 28 SEMIKRON SKRC 440 50/60HzZ 22-100 Joules 75 grammes -40C to +50C 80mm centres.MS screws UL94-VO SKRC 440~2 Module Dimensions 92 a0 Cn Hal com Ni SEMIKRON \SKRC_440-2 21 5 fe 28 TYPICAL APPLICATIONS _ Ne Ne O- 410/460 SINGLE SCR M2 et INVERSE PAIR ~ ~ 0) THREE PHASE BRIDGE Order Code SKRC 440 SKRC 440-2 SKRC 660 Unit with Single RC Network Unit with Double RC Network Unit with Single RC Network For Mov option state Joule rating required and system voltage. Spectai Order Only. SEMIKRON innovation + service 4 Morehoate Orive Hertford SGD 78a Tel 1 0992 584677 Fax 1 0992 554942 PUB SKD0O 1992/4 In The interest Of Product improvement SK Reserve The Right To Change Oata Wihout Notas