104 rav-bwz-2a this model is designed specifically for use in ac power line applications. this model uses specially treated discharge electrodes for greatly enhanced noise immunity test and surge life making it optimum for the protection of single-phase power supply circuits. rav-bxz-2a this model is designed specifically for use in three-phase power circuit applications. combing multiple pavs with specially treated electrodes for greatly enhanced noise immunity test and surge life, this model is constructed in a unit-molded body. rav-byz-2 this model is designed specifically for use in three-phase power circuit applications. it is designed to protect against ?normal mode? noise transient surges. when used in conjunction with the rav-bxz-2a, it will furnish complete protection of equipment from both normal and common mode transient voltage surges. ul csa :ul1449 :c22.2 no.8 e322107 lr105073 safety standard file no. surge voltage mov remain voltage r a v series remain voltage r a v series current absorption mov current absorption 0 vp vf is vf: beakdown voltage vp: peak circuit voltage vp=vac 2 is: max. surge current v1.0(r a v)+v1.0(z 2 )=v1.0(z 1 ) a b z 1 v1.0(z 1 ) rav z 2 v1.0(z 2 ) v1.0(rav) a b surge surge surge absorption capacitance remain voltage comparison chart surge absorber mov rav-bwz-2a, bxz-2a, byz-2 series surge protective devices
105 unit: mm byz series bxz series bwz series circuit rav-401bwz-2a rav-781bwz-2a rav-781bxz-2a rav-781byz-2 rav-142bxz-2 rav-142byz-2 rav-152bxz-2a rav-152byz-2a electrical specifications model number max. line voltage (v) 145 300 450 500 line voltage 50/60hz safety standard 403 783 1,385 1,470 2,500 1,000 2,500 impulse discharge current 8/20 s (a) impulse withstand voltage 1.2/50 s (v) 12,000 20,000 20,000 capacitance (pf) * 100 50 75 40 35 operating te m p . range (c) -20 ~ +70 clamp voltage (v) 10% weight (g) 50 60 100 140 100 d 4.5 5 4.5 c 16 28.5 30.6 28.5 b 28 43.5 28 a 40 41 59.9 41 dimensions (mm) rav-bwz-2a, bxz-2a, byz-2 series surge protective devices surge protective devices 142byz-2 black black black 152byz-2a 781byz-2 black black black black black black green / yellow green / yellow 142bxz-2a bxz-2a black black black bwz-2a green / yellow black black dimensions 123 11 1 c 1 b 1 d 0.5 200 +30 -0 123 5.5 1 4.2 0.2 a 1 11 1 c 1 b 1 d 0.5 200 +30 -0 5.5 1 4.2 0.2 a 1 12 ul1015 awg16 ul1015 awg16 11 1 c 1 b 1 d 0.5 200 +30 -0 5.5 1 4.2 0.2 a 1 ul1015 awg16 single phase single phase three phase three phase three phase ac125v ac250v ac250v ac400v ac460v * central value
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