4950B-115VAC产品概述
Controller, SPDT Contact Type, 115 VAC Voltage Rating
Panel thickness 1.625 in.
The model 4950B is an ideal bell controller for use in factories and schools. The 4950B permits programming the exact time that an event is to occur. In addition, the 4950B permits programming the interval of the programmed event from 1 to 99 seconds.