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Siemens SENTRON ND63T120

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ND63T120

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The Siemens ND63T120 circuit breaker trip unit is engineered for robust performance at a rated voltage of 600 V. This component accommodates a maximum current of 1200 A and features three poles for comprehensive circuit protection.

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Technical specifications for ND63T120

ManufacturerSiemens
Product TypeCircuit Breaker Trip Unit
Product LineSENTRON
Part NumberND63T120
UPC783643215696
Rated Voltage600 V
Rated Current1200 A
Number of Poles3 Poles
Protection TypeThermal Magnetic
Trip FunctionsLong Time, Instantaneous
ComplianceUL, IEC
Interrupting Rating at 600V25 kAIC
Terminal TypeLine/Load Lugs
Conductor MaterialCopper/Aluminum
Wire Size Range250–500 kcmil
Interrupting Rating at 480V50 kAIC

The ND63T120 model from Siemens belongs to the SENTRON series and is a circuit breaker trip unit designed for effective electrical management. It operates at a rated voltage of 600 V and is rated for a current carrying capability of 1200 A. This trip unit includes three poles, making it suitable for multi-phase applications.

This unit utilizes thermal magnetic protection, allowing it to respond effectively to both overload and short-circuit conditions. It supports trip functions for long time delays as well as instantaneous trips. Its performance is certified under both UL and IEC standards, ensuring reliability and compliance with safety regulations.

The interruption rating is specified at 25 kAIC when operating at 600 V, indicating its capability to handle fault conditions without failing. This unit can also withstand an interrupting rating of up to 50 kAIC at 480 V. Installation and connectivity are supported through line/load lugs, accommodating wire sizes ranging from 250 to 500 kcmil with compatibility for both copper and aluminum conductors. The ND63T120 circuit breaker trip unit is a practical solution for demanding electrical applications requiring durable and efficient circuit protection.