3VA9143-0JA12
Siemens
The Siemens 3VA9143-0JA12 is a terminal block accessory designed for use with 3VA6 150/250 circuit breakers. It offers versatile connection options compliant with both IEC and UL standards.
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The Siemens 3VA9243-0JC18 is a wire connector accessory, part of the SENTRON product line, designed for use with 3VA6 150/250 plug-in/draw-out bases. This accessory facilitates connections for two cables and comes with an extended terminal cover that includes probe holes for voltage testing.
It supports a wide range of conductor cross-sections according to IEC standards, accommodating stranded copper cables from 50 mm² to 240 mm² and stranded aluminum cables from 25 mm² to 240 mm². The specified stripped length for IEC connections is 30.5 mm, with a tightening torque of 31 Nm for both stranded and finely stranded copper cables.
Under UL standards, the permissible temperature for connectable conductors is 75 °C. The connectable conductor cross-section ranges from 2 AWG to 350 kcmil for stranded copper, finely stranded copper, and stranded aluminum cables. The tightening torque for UL connections using copper cables is 275 lb-in for both stranded and finely stranded types. The stripped length for UL connections is 1.2 inches.
The maximum connectable conductor cross-section for stranded copper cable under IEC standards is 240 mm².
The maximum connectable conductor cross-section for stranded aluminum cable under IEC standards is 240 mm².
The tightening torque for both stranded and finely stranded copper cables under IEC standards is 31 Nm.
The maximum connectable conductor cross-section for stranded and finely stranded copper cable under UL standards is 350 kcmil.
The permissible temperature for connectable conductors according to UL 486A-486B is 75 °C.
The tightening torque for both stranded and finely stranded copper cables under UL standards is 275 lb-in.
The 3VA9243-0JC18 is a Terminal Block accessory.
