ASCO 185 SERIES Manual Transfer Operation
1. A handle is provided on the transfer switch for maintenance purposes only. Turn OFF both the utility and generator circuit breakers feeding the ATS. Verify that ALL POWER IS OFF! before operating the handle for manual transfer operation.
2. Manual Transfer operation.
a. For Transfer Switch ratings 100-230 A
Grasp the maintenance handle and turn it quickly with your thumb and fingers to manually operate the
transfer switch. "P" labeled for Utility and "A" labeled for generator
b. For Transfer Switch ratings 260-400 A
Insert the maintenance handle into the hole in the shaft, left side of the operator. Move the handle as
shown to manually operate the transfer switch. "N" labeled for normal and "E" labeled for the generator.
3. Upon manual operation, the switch should operate smoothly without binding.
4. After checking the manual operation, use the handle again to return the transfer switch to the utility source
position.
a. For Transfer Switch ratings 100-230 A - The letter P (utility) on the round weight is facing you.
b. For Transfer Switch ratings 260-400 A - The letter N (utility) on the round weight is facing you. Remove
the maintenance handle and store it on the transfer switch in the place provided.
Please refer to the Operator's manual on page no. 11 of the ASCO 185 Series Transfer Switch by clicking HERE .
1. A handle is provided on the transfer switch for maintenance purposes only. Turn OFF both the utility and generator circuit breakers feeding the ATS. Verify that ALL POWER IS OFF! before operating the handle for manual transfer operation.
2. Manual Transfer operation.
a. For Transfer Switch ratings 100-230 A
Grasp the maintenance handle and turn it quickly with your thumb and fingers to manually operate the
transfer switch. "P" labeled for Utility and "A" labeled for generator
b. For Transfer Switch ratings 260-400 A
Insert the maintenance handle into the hole in the shaft, left side of the operator. Move the handle as
shown to manually operate the transfer switch. "N" labeled for normal and "E" labeled for the generator.
3. Upon manual operation, the switch should operate smoothly without binding.
4. After checking the manual operation, use the handle again to return the transfer switch to the utility source
position.
a. For Transfer Switch ratings 100-230 A - The letter P (utility) on the round weight is facing you.
b. For Transfer Switch ratings 260-400 A - The letter N (utility) on the round weight is facing you. Remove
the maintenance handle and store it on the transfer switch in the place provided.
Please refer to the Operator's manual on page no. 11 of the ASCO 185 Series Transfer Switch by clicking HERE .
Released for: Schneider Electric Singapore
