Thomson 250A TS 970 (#10301)

THOMSON POWER SYSTEMS TS 970 AUTOMATIC TRANSFER SWITCHES

Thomson Power Systems TS 970 Automatic Transfer Switches employ a power contactor switching unit and the TSC 7320 controller to automatically start a generator and transfer system load in the event of a utility supply failure. System load is then automatically re-transferred 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-beforemake”) with in-phase transfer detection, or with adjustable neutral position delay to ensure adequate voltage decay for preventing out of phase transfers.

TS 970 Automatic Transfer Switches are certified to UL 1008 & CSA 178 Standards for use in Emergency Power System applications.

All TS 970 Transfer Switch models have been 3 cycle withstand current tested in accordance with UL 1008 & CSA 178. Additionally, they can withstand 6 times overload for 10 cycles. The standard TS 970 Automatic Transfer Switch is rated for 100% system load. All TS 970 Automatic Transfer Switch utilize the TSC 7320 microprocessor based controller which provides all necessary control functions for fully automatic operation. The controller is equipped with 2.3” back-lit LCD display which provides operating status and controls. All parameters and configurations are entered without opening the front door.

Thomson Power Systems TS 970 ATS offer the following:

POWER CONTACTOR SWITCHING UNITS

• 100% Continuous Current Ratings for use with all load types
• High Short Circuit Withstand Ratings
• Three Position Power Contactor with programmable neutral delay position
• Single Coil Power Contactor Design for reliable operation
• Jumper configurable control voltage. No need to change solenoids
• Electrical and Mechanical Interlocked mechanism prevents simultaneous closure between Utility and Generator sources

SUPERIOR SERVICEABILITY

• Plug-in Control Devices allow field serviceability
• Enclosed Power Contacts for safe operation and maintenance
• All control wires and power cable connections are front accessible
• Plug-in TSC 7320 Transfer Switch Controller

CONTROL FEATURES

• TSC 7320 microprocessor based controller with 2.3” back-lit LCD display and programmable inputs/outputs
• Isolation plug permits disconnecting control circuits from all power sources
• Fast Open Transition with In-Phase Transfer

PRODUCT DATA

• Models from 100 - 1200A continuous current
• 3 or 4 pole
• All models 50/60Hz rated
• Voltage 208 - 480VAC
• 3 phase, 3 or 4 wire systems (3 wire, 480V requires option kit)
• Mechanically interlocked Open Transition
• Rust resistant, Satin-Coated enclosure (galvannealed)

QUALITY ASSURANCE

• ISO 9001 Registered

SEISMIC CERTIFICATION

TS 970 is certified for installation and operation per the following requirements:

• Standards: IBC 2018, ASCE7 - 16, ICCES - AC156 - 2015
• Maximum Design Loads, SDS(g)=2.5, Ip=1.5, Fp/Wp- 1.88

SAFETY STANDARDS

• UL 1008
• CSA C22.2 No. 178 Automatic Transfer Switches
• NFPA 110 Standard for Emergency and Standby Power Systems

WARRANTY

• 2 year limited warranty included