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ASCO SERIES 300 Manual Transfer Switch (MTS) Product Wiring, Outline and Mounting Data

Specifications and dimensions subject to change without notice. Do not use for construction. Request construction drawings from your local ASCO representative. These drawings are for our current ATS products. For older ATSs (or if you are uncertain) please contact ASCO Power Services provide the Serial Number and Catalog Number from the ATS nameplate.

Wiring Diagrams

Product Type Frame Amps Phase Drawing
3MTS - Manual Transfer Switch J 150 - 600 Single 1191633
3MTS - Manual Transfer Switch J 150 - 600 Three 1191622
3MUS - Manual Transfer Switch -Service Entrance H 600 - 1200 Single 1190033
3MUS - Manual Transfer Switch -Service Entrance H 600 - 1200 Three 1190022
3MUS - Manual Transfer Switch -Service Entrance G 1600 - 3000 Three 1191600

Outline and Mounting Drawings

Product Configuration Frame Amps Drawing Number
Enclosed (Type 1) J 150 - 600 977099-007
Enclosed (Type 1) H 600 - 1200 977100-001
Enclosed (Type 1) G 1600 - 2000 977105-001
Enclosed (Type 1) G 2600 - 3000 977106-003
Enclosed (Type 3R/3RX Secure) J 150 - 600 977099-008
Enclosed (Type 3R/3RX Secure) H 600 - 1200 977100-003
Enclosed (Type 3R/3RX Secure) G 1600 - 2000 977105-002
Enclosed (Type 3R/3RX Secure) G 2600 - 3000 977106-004
Enclosed (Type 4/4X Secure) J 150 - 600 977099-012
Enclosed (Type 4/4X Secure) H 600 - 1200 977100-007