Allen Bradley 1336R-VB078PRE-AA
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Part Specification
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Description
Precharge1336R480V78ANema 1
The 1336R-VB078PRE-AA model is a precharge unit manufactured by Allen Bradley. It operates at a voltage of 480V and it has a current rating of 78A. This unit is designed to be used in NEMA 1 enclosures.
The precharge unit plays a crucial role in the efficient functioning of electrical motors. It helps in reducing the electrical stress on the motor during startup by gradually applying power instead of a sudden jolt. This ensures that the motor and the connected equipment are not subjected to voltage spikes or sudden surges, which could lead to damage.
The 1336R-VB078PRE-AA consists of various components that work together to provide the precharge functionality. It includes a precharge contactor, which controls the power supply to the motor, and a precharge resistor, which limits the current flow during the initial phase of operation. The unit also features a precharge time delay, which allows for a specific duration for the precharge process to take place.
The NEMA 1 rating indicates that the unit is suitable for indoor use and provides a degree of protection against dust and non-corrosive substances. It does not provide any protection against water or wet conditions.
Full 12-month warranty
All parts new or reconditioned are covered by K2 Automation 12 month warranty
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