Residential Automatic Transfer Switches (ATS) 4P 125Amp with EnclosureATS4PC0125 (Standard Model)
Residential Automatic Transfer Switches (ATS) 4P 125Amp with EnclosureATS4PC0125-2
Residential Automatic Transfer Switches (ATS) 4P 125Amp with Enclosure Residential Automatic Transfer Switches (ATS) 4P 125Amp with Enclosure

ATS4PC0125-11 / ATS4PC0125-22

Residential Automatic Transfer Switch 4P 125Amp

The ATS4PC0125 is a brand new modulized design Automatic Transfer Switch (ATS) with enclosure. Ideal for household and telecommunication cell site use, with 3 phase 4 Wire, rated current of 125A and rated voltage 110VAC or 220VAC to choose from. It is electrically and manually operated. All plastic parts used on the ATS are made with UL 94 V-0 plastic to comply with the highest safety standards. It provides genset remote start signal and programmable weekly engine exercise timer with options from one to four weeks with load or without load to ensure the stability of power supply.


  • Modular design for installation next to switch or on the door
  • Electrically or manually operated, mechanically held contacts
  • Adjustable time delay in neutral position
  • Compact size with user-friendly status LED display
  • Monitor Normal & Standby source OV and UV
  • Built-in 1 to 4 weeks with / without load exerciser
  • Made with UL 94V-0 plastic
  • Build-in neutral lug module
  • Designed for telecom industry or home ATS applications

TS4P125 Switch

TS4P125 Switch 4P 125Amp
Rated Voltage 250 Vac
Rated Current 125 Amp
Rated Frequency 50 / 60 Hz
Switch Type Double throw with Neutral position
Operating Current 3.0A @ 220V
6.0A @ 110V
Poles 4 Poles
Rated Short-Time Current 3.0 KA / 1 second @ 250 Vac
Short Circuit Peak Value 7.5 KA
Utilization Category AC-33A *
Life Over 6000 times / with load
Rated Operating Voltage TCS4P125-11 : 90 – 140 Vac
TCS4P125-22 : 180 – 270 Vac
ATS Class PC

TC-V2 Digital Controller

TC-V2 Digital Controller
Over Volt Setting 110 – 530 Vac (adjustable)
Over Volt Reset Below 10 Vac of the OV setting
Under Volt Setting 80 – 470 Vac (adjustable)
Under Volt Reset Exceed 10 Vac of the UV setting
Adjustable Time Delay TDEN : 0 – 99 seconds
TDNE : 0 – 99 seconds
TDEC : 0 – 99 seconds
TDES : 0 – 30 seconds
TDOFF : 1 – 20 seconds
Normal ON Capacity 7A @ 250 Vac Max.
Standby ON Capacity 7A @ 250 Vac Max.
Remote Start Capacity 6A @ 277 Vac
6A @ 28 Vdc Max.
Power Consumption Less than 1W


Operating Temperature -10 to +70 °C
Storage Temperature -20 to +80 °C
Relative Humidity Max. 95%



Dimensions: 455.0 (H) x 350.0 (W) x 145.0 (D) mm
Weight: 10.7 kg +/-2%

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