... 2.fatory direc sales 3.Delivery in 3days Caterpillar Parts AVR VR6CATERPILLAR AVR VR6/ K65-12B, used for Cartepilla generator. VR 6 ... frequenct protection breakpoints: Adjustable 45 to 65Hz(50/60 Hz regulators only) Regulator Response: Less than 4 milliseconds Thermal stability: ... MX321,SX440,SX460,AS440 Leroy Somer AVR:R230,R438,R448,R449 Marathon AVR:SE350 Siemens/Basler AVR:AVC63-7/7F,AVC63-7-1A ...