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This Siemens 3VA9233-0JA12 is an accessory terminal block, specifically designed for integration with the 3VA5 250 series of circuit breakers. It facilitates electrical connections using standards compliant with both IEC and UL.
For IEC connections, the terminal block supports copper cable with stranded conductors ranging from a minimum of 25 mm² to a maximum of 185 mm². The required stripped length for these conductors is 20 mm. Tightening torques vary based on conductor size: 6 Nm for stranded conductors between 25-35 mm² and 12 Nm for stranded conductors between 50-185 mm². For finely stranded conductors, 6 Nm is required for 35 mm² and 12 Nm for 50-150 mm². The maximum busbar thickness supported is 2x-6x[15.5x0.8].
Under UL standards, the terminal block accommodates copper cable, both stranded and finely stranded, with a minimum size of 4 AWG and a maximum size of 350 kcmil. The stripped length required is 0.8 inches. Tightening torques for stranded and finely stranded conductors are 70 lb-in for sizes 4-1 AWG and 140 lb-in for sizes 1/0-350 kcmil.
This accessory is part of the SENTRON product brand and is classified as a terminal block accessory, suitable for applications requiring robust and compliant electrical connections within the 3VA5 250 system.
The maximum conductor cross-section for stranded copper cable under IEC standards is 185 mm².
The minimum conductor cross-section for finely stranded copper cable under UL standards is 4 AWG.
The required stripped length for copper cable connections under IEC standards is 20 mm.
The tightening torque for stranded copper cable between 50-185 mm² under IEC standards is 12 Nm.
The maximum busbar thickness supported is 2x-6x[15.5x0.8].
The RoHS status is RoHS3 Compliant.
The Moisture Sensitivity Level (MSL) is 1 Unlimited.