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ND63T900
The Siemens ND63T900 is a dedicated tripping unit designed for application in molded case circuit breakers. Operating at a nominal voltage of 600 volts AC, it supports three phases and features a trip rating of 900 amperes, ensuring robust protection.
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Technical specifications for ND63T900
| Manufacturer | Siemens |
|---|---|
| Product Type | Tripping Unit |
| Product Line | SENTRON |
| Part Number | ND63T900 |
| UPC | 783643215672 |
| Interrupting Rating | 25 kiloamperes at 480 Volts AC |
| Trip Range | 5,000 to 10,000 Amperes |
| Nominal Voltage | 600 Volts AC |
| Number of Poles | 3 Poles |
| Input Phase Rating | 3-Phase |
| Trip Amperage | 900 Amperes |
| System Frequency | 50 to 60 Hertz |
| Terminal Connection Method | Line Side and Load Side Lugs |
| Wire Size | 250 to 500 Thousand Circular Mils |
| Trip Functions | LI - Long-Time and Instantaneous |
| Compatible Circuit Breakers | Molded Case Circuit Breakers with ND, NXD, CND, HND, and HNXD Frame |
The Siemens ND63T900 is a tripping unit tailored for use within circuit breaker systems. It is designed to function effectively in 3-phase applications, handling a nominal voltage of up to 600 volts AC. This tripping unit can respond to a trip current of 900 amperes and is engineered to operate within a system frequency of 50 to 60 Hertz.
With an impressive interrupting rating of 25 kiloamperes at 480 volts AC, the ND63T900 provides necessary protection against electrical faults. This unit features a trip range that allows it to trip between 5,000 and 10,000 amperes, which is essential for managing large currents in industrial settings. The terminal connections utilize lugs on both the line and load sides, facilitating straightforward installation.
Regarding wire compatibility, this unit can accept conductors sized from 250 to 500 thousand circular mils, allowing it to manage substantial wiring safely. The trip mechanism includes long-time and instantaneous functions, offering flexibility in how the unit responds to overcurrents. The ND63T900 is compatible with a variety of molded case circuit breakers across different frame types, including ND, NXD, CND, HND, and HNXD series, making it a versatile choice for circuit protection solutions.
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