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This Siemens 3VA9673-0JJ43 is a wire connector accessory, specifically a terminal block, designed for compatibility with Siemens 3VA55, 3VA65, and 3VA66 circuit breakers. It facilitates electrical connections for conductors.
The terminal block supports stranded copper conductors ranging from 120 mm² to 240 mm² according to IEC standards, with a stripped length of 23.1 to 44.5 mm and a tightening torque of 36.7 Nm. For UL connections, it accommodates stranded copper or aluminum conductors from 4/0 AWG to 500 kcmil, with a permissible conductor temperature of 90 °C.
This accessory is crucial for ensuring secure and reliable connections in electrical systems utilizing the specified Siemens circuit breaker series. Its robust design and compliance with industry standards make it suitable for various industrial and commercial applications.
According to IEC standards, it supports stranded copper conductors from 120 mm² to 240 mm². Per UL standards, it supports stranded copper or aluminum conductors from 4/0 AWG to 500 kcmil.
The tightening torque for stranded copper conductors (120-240 mm²) and finely stranded conductors (185 mm²) is 36.7 Nm.
The permissible temperature for connectable conductors according to UL 486A-486B is 90 °C.
This terminal block is designed for use with Siemens 3VA55, 3VA65, and 3VA66 circuit breakers.