TS 970 – Commerical & Industrial Applications
100 - 400A, 3 or 4 pole, Power Contactor Transfer Switch

  • Power Contactor ATS for Commercial & Industrial use
  • 100 - 400A, 3 or 4 pole, 50/60Hz rated, 480VAC
  • 3 phase, 3 or 4 wire systems (3 wire, 480V requires option kit)
  • Fast Open Transition with Inphase transfer
  • UL 1008 listed.
  • Easy to use TSC 900 ATS controller with 7" colour touch screen graphical display and programmable inputs/outputs

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Stock Models

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 Amperage Range: 100A - 400A
 Voltage Range: 208 - 480V
 Poles: 3 or 4 Pole
 Frequency: 50/60Hz
 Power Distribution: 3 Phase, 3 or 4 wire systems (3 wire, 480V requires option kit)
 Controller: TSC 900
 Standard Enclosure: NEMA 1 (NEMA 3R option available)
 Safety Standard: UL 1008 , CSA C22.2 No. 178
 Quality Assurance: ISO 9001 Registered
 Warranty: 2 Year



Thomson Power Systems TS 970 Automatic Transfer Switches offer the following:

Power Contactor Switching Units

  • 100% Continuous Current Ratings for use with all load types
  • Suitable for Copper and Aluminum power cable connections
  • High Short Circuit Withstand Ratings when used with upstream molded case circuit breakers

Reliable Solenoid Operated Transfer Mechanism

  • Fast Operation allows In-Phase Power Transfer
  • Electrical and Mechanical Interlocked mechanism prevents simultaneous closure of Utility and Generator sources

Superior Serviceability

  • Plug-in Control Devices allow superior field service ability
  • Enclosed Power Contacts for safe operation and maintenance

Quality Assurance

Complies with:
- NEMA & UL50
- UL 508
- IEEE C62.41, C37.90.1
- FCC CFR 47 Part 15, Class B
- IEC EN 61000 Electromagnetic Capability

Control Features

  • New/Advanced TSC 9 Series Transfer Controller with features specifically designed for Residential and Light
  • Commercial ATS applications. User programmable timers, Simple LED interface
  • Outputs for Automatic Load Shed & Remote Alarming
  • kW Load Shed Control (Optional) Reduces costs by sizing your standby power system for prioritized loads
  • Wireless Remote Alarm Messaging Module (Optional)
  • Universal Generator Interface kit option allows TS 910 to be applied to multiple types of generator sets utilizing 240V remote starting control systems


KOTS Key Operated Test Switch - Auto/Off/Engine Start/Test 
PPR-10 Programmable Power Relay Includes 10A Form C Contact Wired to Terminal Block (up to 3). Requires 24Vdc External Power Control 
EMB-TCP/IP Ethernet Modbus Remote Communication Port (Modbus TCP) via GHC 
RS485A RS 232 to RS 485 Remote Communication Adaptor 
THS 900 Remote Communication Application - Windows Based
*Requires EMB-TCP/IP Option 
RA 900  Remote Annunciator (Refer to separate literature) 
GHC-SS Sunshade for GHC Screen 
LCK Enclosure Lockable Door (Single Point T-Handle Lock) 
TS-H1 Enclosure Strip Heater c/w Thermostat (120VAC external power source required) 
TS-H2Enclosure Strip Heater c/w Thermostat (internally powered from ATS load) 
480VDELTA Control Transformers for 480V Delta Systems Without Neutral Connection (3 Phase, 3 Wire) 
DSG Dual Standby Generator Control Package (Slave ATS). Requires 24DCC Option to Power TSC 900 
DPG Dual Prime Generator 
LPM Transfer Switch Load Power Metering CT Kit (Amp, Volt, Freq, kW, kVA, PF)
**Requires CT Kit 
CTKxxxx Current Transformer Kit for LPM (xxx-Specify CT Size 0100, 0150, 0250, 0400) 
24DCC 24 Volt DC-DC Converter, Regulated 
SPD Surge Protection Device 
3 Year Additional 12 months Parts & Labour Warranty 
5 Year Additional 48 Months Parts & Labour Warranty 

Engineering Briefs


Schematic Drawings

Physical Drawings

Ordering Information

Contact Sales at sales@thomsonps.com.