The Power Experts

ASCO 4000 Series Electrically Operated Bypass-Isolation Transfer Switch

ASCO 4000 Series Electrically Operated Bypass-Isolation Transfer Switch The ASCO 4000 Series Electrically Operated Bypass-Isolation Transfer Switch provides high-speed load transfer between differing sources of power using a reliable, field-proven, solenoid-operated contactor and robust controls. The 4000 Series reliably transfers critical loads between differing power sources and can shunt its primary transfer mechanism at the touch of a button using a new electrical operator. This allows the switch to be isolated for testing and maintenance without interrupting power to the load. It also provides emergency transfer capability if the primary switch mechanism is disabled or removed.

The 4000 Series Electrically Operated Bypass Switches are available in automatic or non-automatic transfer models. Both types monitor voltage and frequency and allow transfer only when the alternate source presents acceptable characteristics. Automatic models start engine generators and transfer loads to the alternate source without human intervention. Non-automatic models require an operator to initiate these operations.

ASCO 4000 Series Electrically Operated Bypass-Isolation Transfer Switch Features

  • Single-touch bypass controls
  • One-line diagram for intuitive status indication
  • LEDs indicate permitted and restricted operations
  • Intelligent self-diagnostics streamline troubleshooting
  • Automated logging facilitates evaluation and review of historical events
  • Adjustable delay and trip settings enable site-specific transfer sequences

4000 Series Electrically Operated Bypass-Isolation Transfer Switch Benefits

Intuitive Status and Control – Easy-to-understand interfaces and electrically operated controls provide simple operation while minimizing human error and response time.
Advanced Communications – Easy-to-access diagnostics, optional remote monitoring, and instant email notifications provide full system awareness.
Full Bypass-Isolation Capabilities – Transfer mechanism can be serviced and tested without interrupting power to loads. Provides manual transfer capability when switching mechanism is out-of-service

4000 Series Electrically Operated Bypass-Isolation Transfer Switch Specifications

Models Ampere Size Pole Count Voltage Enclosure Type
4ATE / 4NTE / 4ADTE / 4NDTE 150 – 600 2, 3 115 – 600 Type 1, 3R, 3RX, 4, 4X, 12

Additional Specifications

Intended Applications: Indoor / Outdoor
Ampere Size: 150 – 600
Pole Count: 2, 3
Voltage: 115 – 600
Product Type: Bypass-Isolation Transfer Switch
Neutral Configuration: Solid, Switched
EnclosureType:  1, 3R, 3RX, 4, 4X, 12
Connectivity: Ethernet/Serial MODBus, webpage and email alerts
Optional Accessories: Consult ASCO

For more information about ASCO Power Technologies,
call 800-876-9373 or email sales@power-solutions.com.