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Automatic Transfer Switches
30 Amps to 3000 Amps
Sommers stocks and supplies a wide selection of Automatic
Transfer Switches for standby generator systems. We are Canada’s largest
distributor of Cutler-Hammer switch gear, trusted for lasting reliability and
easy installation. We carry a large inventory, ready to ship for both retail
customers and for fast service to our dealers.
For details on current models and specifications, download our brochure on PowerMaster Automatic Transfer Switches (PATS) with microprocessor
controls
How
Automatic Transfer Switches Work:
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In automatic
transfer switch equipment, the switch’s intelligence system initiates the
transfer when normal power fails below a preset
voltage.
If the emergency power source is a standby generator, the
automatic transfer switch initiates generator starting, and then transfers
the load to the emergency power source when sufficient generator voltage is
available.
When normal power is restored, the transfer switch automatically
transfers the load back and initiates engine shutdown.
In the event the normal power source fails and the emergency
power source does not appear, the automatic transfer switch remains connected
to the normal power source until the emergency power source appears and is
available.
Likewise, if the load is connected to the emergency power source
and the emergency power source fails while the normal power source remains
unavailable, the switch remains connected to the emergency power source. |
Sommers also stocks a complete range of Manual Transfer Switches.
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