The FT Switches and FT Test Plugs have all the features necessary for applications involving the measurement of individual currents and voltages to facilitate testing of substation instrumentation and protection devices from the front of the panel. The make before-break current short circuit feature allows test personnel the convenience of isolating equipment from current transformer circuits.
Type SB-1 Switches are rotary, cam-operated devices for the control of electrically operated circuit breakers, small motors, magnetic switches and similar devices.
The SB-10 switch provides two electrically separate and mechanically independent switches in one device. It utilizes both lateral and rotary contacts all constructed on the same switch.