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This Siemens SENTRON TA2.8 circular conductor terminal (part number 3VA9374-0JJ24) is an accessory designed for wire connections. It supports both copper and aluminum stranded conductors with a minimum cross-section of 250 kcmil and a maximum of 750 kcmil.
The terminal is rated for a permissible conductor temperature of 90°C according to UL 486A-486B standards. The stripped length required for IEC connections is 38.1 mm, while for UL connections it is 1.5 inches. When using copper cables, the tightening torque is specified at 410 lb-in for stranded conductors between 250-750 kcmil.
This accessory is intended for use with Siemens 3VA53/54 and 3VA63/64 series circuit breakers, specifically those rated up to 400A. It features a standard terminal designation of TA2.8 and does not include a control wire tap.
Environmental compliance includes RoHS3 compliance, REACH unaffected status, and a Moisture Sensitivity Level (MSL) of 1, indicating unlimited usability under standard conditions. The product is part of the Siemens SENTRON family.
It accepts stranded copper and aluminum conductors from 250 kcmil to 750 kcmil.
The stripped length is 38.1 mm (1.5 in) per IEC and UL standards.
The tightening torque for stranded copper cables (250-750 kcmil) is 410 lb-in.
The permissible temperature per UL 486A-486B is 90 °C.
It is for use with 3VA53, 3VA54, 3VA63, and 3VA64 breakers.
No, it does not have a control wire tap.