3VA9143-0JB11
Siemens
Siemens 3VA9143-0JB11 wire connector accessory for 3VA6 150/250 circuit breakers. It supports a wide range of conductor sizes and tightening torques according to IEC and UL standards.
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This Siemens SENTRON wire connector, part number 3VA9243-0JF68, is an accessory designed for use with 3VA6 150/250 plug-in and draw-out bases. It features a terminal designation of TA2.6 and includes an extended terminal cover with probe holes for voltage testing.
The connector is compatible with both IEC and UL standards for electrical connections. According to IEC standards, it can accommodate stranded copper cables with cross-sections ranging from a minimum of 1.5 mm² to a maximum of 35 mm². Tightening torques for IEC connections vary based on conductor type and size, ranging from 2.8 Nm to 7 Nm.
Under UL standards, the connector is rated for a permissible conductor temperature of 75 °C. It supports solid copper cables from 14 AWG to 10 AWG, and stranded copper cables from 14 AWG to 2 AWG. Finely stranded copper cables are also supported from 14 AWG to 2 AWG. For aluminum cables, it supports solid types from 12 AWG to 10 AWG, and stranded types from 12 AWG to 2 AWG. UL tightening torques for copper cables range from 55 lb-in to 62 lb-in.
This accessory is part of the Siemens SENTRON product line, offering reliable connectivity solutions for circuit protection systems.
The maximum connectable conductor cross-section for stranded copper cable under IEC standards is 35 mm².
The maximum connectable conductor cross-section for stranded copper cable under UL standards is 2 AWG.
The permissible temperature for connectable conductors according to UL 486A-486B is 75 °C.
The tightening torque for solid copper cables between 2.5 and 10 mm² under IEC standards is 6.2 Nm.
The tightening torque for stranded copper cables between 6 and 2 AWG under UL standards is 62 lb-in.
