​Power Transfer Switch, ATS | ASCO Series 230 | Emerson

​The Series 230 automatic transfer switch consists of an intelligent controller and a modular load break switch which automatically transfers the load to the emergency power source when it detects under/over voltage, under/over frequency, or phase failure. The switch has three operation positions (source one - center off - source two). The two sources can be isolated in the center off position. A position locking mechanism is also provided.

Meets or exceeds the requirements of the following regulatory agencies

  • EN60947-6-1/IEC60947-6-1: transfer switching
  • GB14048.11-2008: Multiple function equipment. Transfer switching equipment
  • EN55022: Radiated and Conducted Emission, Class A
  • EN61000-3-2: Harmonic Current Emission, Class A
  • EN61000-3-3: Limits of Voltage fluctuation and Flicker
  • EN 61000-4-5: Immunity to Surge
  • EN 61000-4-4: Immunity to Electrical Fast Transient:
  • EN61000-4-2: Immunity to Electrostatic Discharge
  • EN61000-4-3: Immunity to Radiated Electric Fields
  • EN 61000-4-6: Immunity to Continuous Conducted Interference Structure
  • PC Class ATS
  • High ability of withstanding lightning strikes (40kA 8/20μs)
  • Simple reliable mechanism, compact and stylish appearance
  • Modular design, convenient operation, easy maintenance
  • Three operation positions. Two sources can be isolated in the center-off position Arc Extinguish
  • The utilization category is AC-33B, and the ability of withstand and break is10 Ie
  • Rotating dual contacts design extinguishes the arc quickly and effectively
  • Arcing contacts and main contacts are separate, avoids main contacts from being destroyed by an arc
  • Clamping contacts are self cleaning wiping action type
  • High short-circuit closing ability Switching Mechanism
  • Both automatic and manual operation are available
  • Unique contacts design limits contact bounce
  • Unique clutch technique makes manual operation easy to do
  • Electrical and mechanical interlocks prevent two sources from connecting simultaneously
  • Innovative motor circuit protection technique, provides precision control
  • Cast steel bevel gear mechanism provides high transmission efficiency, and extends the operation life Controller
  • Different Operating Modes (Source I priority/ No Source priority)
  • C2000 has ability to work with external 24VDC power supply
  • High frequency switching power supply, and wide power voltage range
  • Controller remains operational when power is lost, and avoids data loss
  • Diagnosis fault intelligent with self -protection function (Motor-Protection)
  • RS485 communication interface is available
Optional Accessories

KIT NO.  Description 
132 J A B2ADTL Frame Bridging Busbar for a 2 poles transfer switch
132 J B B2ADTL Frame Bridging Busbar for a 3 poles transfer switch
132 J C B2ADTL Frame Bridging Busbar for a 4 poles transfer switch
132 A-F * Auxiliary Contacts


* stands for Auxiliary Contacts quantity. BLANK: 1 contact A: 2 contacts B: 3 contacts C: 4 contacts.

Misson-Critical Care
Our comprehensive service portfolio extends beyond routine maintenance to include solution upgrades and technology training that ensure you get the most from your emergency power systems.

1 800 800 ASCO (2726)