Westinghouse NB3900T Circuit Breaker | 600V 3P 900A LI Thermal Magnetic NB Series

Product Description:
The NB3900T is a 3-pole circuit breaker trip unit designed for industrial and commercial electrical systems. It provides reliable protection with its thermal magnetic function and long-time plus instantaneous trip settings. This unit is compatible with NB, HNB, and NBY breaker frames, ensuring versatile application. It is built to handle up to 600 volts and is rated for 900 amperes, making it suitable for demanding electrical environments.

Key Features:
✔ Part Number: NB3900T
✔ Manufacturer: Westinghouse
✔ Category: Circuit Breaker
✔ Subcategory: Trip Units & Programmers
✔ Family: NB Series
✔ Type: NB
✔ Voltage: 600
✔ Poles: 3
✔ Functions: LI - Long-Time and Instantaneous
✔ Amperage Maximum: 900
✔ Amperage Minimum: 900
✔ Protection: Thermal Magnetic
✔ Compatible Frames: NB,HNB,NBY
✔ Weight: 4