Penncat Corporation Automatic Transfer Switches Series TS 870

Thomson Technology TS 870 Standard Automatic Transfer Switches employ two mechanically interlocked power switching units with a microprocessor based controller to automatically start a generator and transfer system load to a generator supply in the event of a utility supply failure. System load is then automatically retransferred back to the utility supply following restoration of the utility power source to within normal operating limits. All load transfer sequences are “Open Transition” (i.e. “break-before make”) with adjustable neutral position delay to ensure adequate voltage decay to prevent out of phase transfers.

TS 870 Automatic Transfer Switches are and certified to CSA 178 & UL 1008 Standards for use in Emergency Power System applications.

All TS 870 transfer switch models have been 3 cycle withstand current tested in accordance with UL 1008 & CSA 178. The standard TS 870 Automatic Transfer Switch is rated for 100% system load. The TS 870 design allows optional use of integral over current trip elements within the power switching units.

The Thomson Technology TS 870 bypass isolation transfer switch includes all the features of the TS 870 transfer switch described in our TS 870 Automatic Transfer Switch brochure.

The TS 870 bypass isolation switch incorporates two basic types for bypass-isolation. Type "B" (double-sided ) isolates the transfer switch and can bypass either the utility or generator source of the load, as selected by the operator. Single-sided bypass types "D" (utility bypass) and "C" (generator bypass) can bypass only one source to the load (in accordance with CSA 282- 00 - Institutional & Residential Buildings Occupancy Group B and C). Note: CSA 282-00 requires (as a minimum) a single sided bypass on the generator supply.

The TS 870 series mechanisms utilize enclosed contact power switching units which provide a 100% continuous rating. The switches are mounted independently on a common frame.