ASCO Automatic Transfer & Bypass-Isolation Switches are available in open transition, closed transition and delayed transition designs. The bypass and isolation features allow power transfer switches to be inspected, tested, and maintained without any interruption of power to the load.
 

	Available 140 to 4000 amperes.
	Allows bypass-isolation without load interruption.
	Bypass switch and transfer switch have identical electrical ratings.
	Heavy duty mechanical interlocks prevent undesirable operation.
	Bypass contacts carry current only during bypass mode.
	Transfer switch is drawout design for ease of maintenance.
	Bypass and isolation handles are permanently mounted. The bypass switch has dead front quick-make, quick-break operation for transferring of loads between live sources.
	Bypass switch is fully rated for use as a manual 3-position transfer switch.
	Bypass and isolation functions are simple, requiring a total of two operating handles.
	No toggle switches, push buttons, selector switches or levers are required for bypass-isolation operation.
	Mechanical indicators show bypass and transfer switch positions

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