600 AMP Transfer Switch Thomson Service Entrance Rated, Automatic

Product Summary
  • Automatic Transfer Switch, TS 870SE Series
  • Service Entrance Rated
  • 600 AMPS
  • 2-3 Pole / 1-3 Phase, 50/60 Hz
  • TSC7320 Advanced Controller – adjustable voltage (208-600V)
  • 3 or 4 wire – Including Neutral
  • Molded Case Breaker Switch Type
  • NEMA 3R Weather-Proof Enclosure – Indoor or Outdoor use
  • UL1008 Listed
  • DOWNLOAD Datasheet/Drawing – Click Here
Availability:

IN STOCK - Ready to Ship

Description

GENERAL

Thomson TS873A0600B1AY6DNKAA – 600 Amp Service Entrance Rated Automatic Transfer Switch, 3-Phase, Open Transition, NEMA 3R Enclosure

The Thomson TS870 Series 600 Amp Automatic Transfer Switch delivers dependable power switching performance for critical commercial and industrial operations. This UL 1008 service entrance rated ATS is engineered for high-reliability applications where consistent power availability is essential, such as in healthcare centers, data hubs, manufacturing facilities, and mission-critical infrastructure.

Designed for seamless utility-to-generator transfer, this model incorporates a 2-wire dry contact for automatic generator start, making it easy to interface with most standby generator systems. The switch uses a microprocessor-based TSC 7320 controller featuring a backlit LCD for real-time diagnostics, voltage monitoring, system frequency tracking, and advanced input/output programmability.

The TS873A0600B1AY6DNKAA is a 3-phase, 3-pole switch, supporting open transition (break-before-make) operation to safely disconnect from one source before connecting to another—protecting against out-of-phase power transfer. This unit is fully rated for 600 amps continuous load, supports 120–600V systems at 50/60 Hz, and includes a solid neutral connection for grounded 4-wire installations.

Housed in a durable NEMA 3R enclosure, this model is suited for both indoor and outdoor installations, offering protection from rain, sleet, and external debris. The integrated service disconnect eliminates the need for a separate upstream breaker on the utility feed, reducing overall equipment cost and installation complexity.

Product Highlights:

  • 600A continuous current rating, 3-phase, 3-pole

  • TSC 7320 controller with LCD display and built-in diagnostics

  • 2-wire generator start capability

  • UL 1008 and CSA 22.2 No. 178 listed

  • Rated withstand: 50kA @480V / 35kA @600V

  • Solid neutral and programmable logic control

  • Seismic, NFPA 110, and ISO 9001 compliant

Ideal for mission-critical environments, the TS870 Series 600A ATS ensures smooth, automatic power transfer with smart controls and durable construction designed for long-term use.

Part Number: TS873A0600B1AY6DNKAA
Enclosure Type: NEMA 3R | Controller: TSC 7320 | Voltage Range: 120–600V

NOTE:
>Listing photos are representative and may not reflect exact model
>High voltage can harm or cause death. This switch should only be installed or serviced by a trained technician

Additional information

Brand

Thomson Power Systems

Condition

New

Series

TS870SE, Service Entrance Rated

Voltage

208-600V reconnectable, No additional parts necessary

Phase

1/3

Poles

2/3

Frequency

50/60 Hz

Wire

3/4, including neutral

Enclosure

NEMA3R – Indoor or Outdoor Weather Proof

Auto Start

Yes, for generator autostart, 2 wire dry contact

Transition

Open

Physical Dimensions

22 x 48 x 80" DxWxH (Enclosure dimensions are for reference, refer to drawing for more information)

Weight

1540 lbs

Warranty

2 Year Limited Warranty

Location

Miami, FL USA

Certification(s)

UL 1008 & CSA 22.2 No. 178