Panasonic KW4M User Manual

22Recommended CableUse the transmission cables shown below for Eco-POWER METER RS485 communication system.Conductor InsulatorCable Size Resistance(at 20℃） Material ThicknessCablediameter Applicable cable1.25 mm 2(AWG16)or moreMax.16.8Ω/km Polyetheline Max.0.5 mmApprox.8.5 mmHITACHIKPEV-S1.25 mm 2×1PBelden Inc. 9860Twisted-pairwith shield 0.5 mm 2(AWG20)or moreMax.33.4Ω/km Polyetheline Max.0.5 mmApprox.7.8 mmHITACHIKPEV-S0.5 mm 2×1PBelden Inc. 9207VCTF0.75 mm 2(AWG18)or moreMax.25.1Ω/km PVC Max.0.6 mmApprox.6.6 mmVCTF0.75 mm 2×2C(JIS)Cable SectionTwisted-pairwith shieldVCTFNotes1) Use shielded type twist cables.2) Use only one type of the transmission cables.2) Do not mix different types of the cables.3) Use twist pair cables under a bad noise environment.6-3-7 Low Voltage DirectiveWhen using in the application confirming to EN61010-1/IEC61010-1, make sure to satisfy the followingconditions.(1) Pulse output part secure only basic insulation. In order to secure reinforced (double) insulationdemanded by EN 61010-1/ IEC61010-1, secure basic insulation or more with load side andreinforced (double) insulation with communication system side.(2) Provide the voltage input part with an EN60947-1 or EN60947-3 compliant circuit breaker.The breaker that connects to the voltage input part must arrange at the position easily reached,and display shows it is the breaker of the equipment.(3) Use a wire with basic insulation or more for a wire cramped (or connected) CT.【Environmental conditions】・Overvoltage category Ⅱ, Pollution degree ２・Indoor use・An ambient temperature of –10 to 50℃・An ambient non-condensing humidity of 35 to 85%RH (at 20℃)・Altitude of 2000m or less【Mount the product in a place with】・A minimum of dust, and an absence of corrosive gases・No flammable, explosive gasses・Few mechanical vibrations or shocks・No exposure to direct sunlight・No large capacity electromagnetic switches or cables through which large current is flowingConductor InsulatorJacketShield JacketConductor Insulator