ASCO 400A 4P Three Phase Automatic Transfer Switch in Enclosure

1 in stock

SKU: D2ADTLB30400JE00 Category:


Three Phase Automatic Transfer Switch 

The ASCO 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 the normal power source under/over voltage, under/over frequency, or phase loss. The switch has three operational positions (Source I, Center-off, Source II). The series 230 is available in 5 different frame sizes up to 800A and can operate in multiple control modes including automatic, remote and manual operation.

The Series 230 transfer switch is available in single and three phase configurations up to 80A, and for higher power applications in three phase configurations up to 800A, up to 415 volts and for both 50 and 60 Hz.

ASCO 400A 4P three phase automatic transfer switch features:

400A 4P automatic transfer switch (Single phase)
Optional enclosure dimensions 600mmW x 400mD x 1000mmH
Cable gland plate Bottom entry
C2000 controller
High speed transfer between alternate sources of power
Three operation positions. Two sources can be isolated in the centre-off position
Handle for manual operation
NO DC power supply required for controller
*Please contact us for delivery pricing.

The ASCO A frame Three phase automatic transfer switch includes a C2000 Controller with the following features:

Voltage and Frequency Sensing
Adjustable under and over voltage settings on Source I and Source II
Adjustable under and over frequency settings on Source I and Source II
Voltage unbalance detection between phases

Time Delays
Time delay sensing accuracy is ±1% • Time delay can be set under different working modes

Controller Display and Keypad
LCD display
Touch pad for programming the features and settings
Switch position indicator lights
Source acceptability indicator lights

Remote Control and Communication
Remote position control signal input
Fire control signal input (24VDC)
Standard feature: RS485 interface, supporting MODBUS communication

Power Supply of Controller
Operation Voltage (VAC): 220/ 230/ 240/ 380/ 400/ 415
C2000 has ability to work with 24VDC power supply

Suitable Applications

Banking, Financial and Insurance
Broadcast and Entertainment
Construction and Engineering
Data Center/Hosting
Power Generation

Additional information



Phase Type



Agriculture, Emergency Standby, Industrial, Mining & Construction, Rental & Hire, Residential Backup, Solar Backup

Data Sheet


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