PHASE ROTATION INDICATORS
STB Model Numbers 50109-G-01 & 50109-G-02

 

WIDE BAND PHASE SEQUENCE INDICATOR

The Model 50109-G-01 Phase Sequence Indicator offers a frequency range from 25 to 1000 Hertz with voltage range from 60 to 600 volts for determining sequence in polyphase circuits.

The Model 50110-G-01 operates on a frequency range of 60 Hertz with a voltage range intended for 4160 volts to determine sequence in polyphase circuits.

Used to determine proper sequence on all polyphase circuits prior to connecting phase sensitive loads such as pumps or motors, paralleling generating sources or replacing transformers. Series 560 will indicate presence of all phases as well as phase sequencing. Both phase sequence indicators display clockwise and counterclockwise rotation on two jumbo LED’s. It includes a battery test switch with high reliability circuitry and construction.



 


Photo of Phase Rotation Indicator 560
Phase Rotation Indicator 560


Photo of Phase Rotation Indicator 560-5
Phase Rotation Indicator 560-5
 

The 50109-G-01 and the 50110-G-01 are both housed in a high impact plastic case and have permanently attached leads with fully insulated color coded spring clips for easy identification and fast hookup. The battery test switch is conveniently located on the front of the unit and positioned to avoid inadvertent activation during storage. Slide open battery compartment facilitates easy 9-volt battery replacement.

The Model 50109-G-01 has been sold to customers such as San Diego Gas & Electric, Zia Electric, and Graybar in Montana.

The Model 50110-G-01 was originally designed for use on naval ships.

NOTE: Since STB Electrical Test Equipment, Inc., has the policy of continuous product improvement, we reserve the right to change design, specifications and/or prices without notice.