Mainline Power Protection

PTLC - Upgradeable Manual Transfer Switch Series

PTLC - Upgradeable Manual Transfer Switch SeriesUpgradeable ASCO manual transfer switches offer the flexibility to easily change your panel's capabilities, without replacing the PTLC or rewiring your installation. Initially, you may lower site costs by purchasing a PTLC with an ASCO UL 1008 Listed manual transfer switch. An exterior handle allows power to be easily redirected from its normal or utility source to an auxiliary power source.

As site needs change, or if you desire to save site visits to transfer load sources, upgrade to an automatic transfer switch. When the upgrade is performed in the field by ASCO-certified technicians, the factory warranty on the complete panel is extended at no cost. The upgrade is accomplished with a phone call to 1.800.800.ASCO (1.800.800.2726).

The table below provides a general overview of the features of specific panels series. Options for various series may not be listed. For specific panel data, click on product links below.

Product Series Service Voltage Amps Transfer Switch Enclosure Type Load Center TVSS Type
Series MA 240/120,
208/120
200, 225,
300, 400
ASCO Series 300
(non-automatic)
NEMA 1
NEMA 3R
Square D
42 positions
Strikesorb
Series AM300 240/120,
208/120
200 ASCO Series 300 NEMA 1
NEMA 3R
Square D
42 positions
Series 458
Series MA-4-GR 210/120,
208/120
200 ASCO Series 300
(non-automatic)
UL Type 4 Square D
30 positions
Strikesorb