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Product Description
Industrial Grade 30A Fail-Safe Transfer Switch
The Sentry Fail-Safe Transfer Switch™ (FSTS) features two input power feeds,
from separate AC circuits, to supply single-power equipment with dual, redundant power
sources. With dual-power input, the first power in-feed supplies power to one half of the
connected device(s), while the remaining device(s) are powered by the other power input.
With this automatic transfer switch, if either power in-feed becomes unavailable, then the
Sentry FSTS auto-switches to the remaining power feed source to reestablish power to the
connected equipment.
The FSTS architecture provides patent pending power in-feed sharing. In the normal
operational mode, each power in-feed is active and supplying power to one half of the
total outlet receptacles. When a power in-feed fails, the receptacles normally associated
with this “downed” in-feed are automatically switched over to the remaining active power
feed. Once power is reestablished to the “downed” in-feed, the receptacles associated with
it are switched back. This feature results in switching of only half the receptacles, and their
associated load, in the event of a power in-feed failure.
A major advantage of the Industrial Grade FSTS is the power in-feed sharing which reduces
wear on the relays. It also utilizes our patented arc suppression technology to prevent arcing
between the relay points and contacts during power in-feed transfers. This is accomplished
by utilizing solid state devices in conjunction with electromechanical relays. Solid state
devices are used to both break and make connections to the electromechanical relay,
allowing the isolation relay to make and break its contacts without heavy load currents
being present.
Key Features
* Dual Input Power: Supply single-power corded equipment with dual redundant power feeds
First feed provides power to one half the outlets; second feed supplies the other half
* Fast Transfer Rates: Primary to secondary power transfer is 10-16 milliseconds maximum
Power interruption will not affect uptime or performance
Phased Synchronization between power input feeds not required
* Voltage: 100-120 or 208-240VAC
Patented Arc-Suppression: Prevents arcing between relay points and contacts during power in-feed transfers
Branch Circuit Protection: Compliant to UL 60950-1
Visual Indication: LED indicators easily distinguish which power source is supplying power to the outlets
Monitors the load per circuit
Cable-retention brackets for power outlets
The Sentry Fail-Safe Transfer Switch™ (FSTS) features two input power feeds,
from separate AC circuits, to supply single-power equipment with dual, redundant power
sources. With dual-power input, the first power in-feed supplies power to one half of the
connected device(s), while the remaining device(s) are powered by the other power input.
With this automatic transfer switch, if either power in-feed becomes unavailable, then the
Sentry FSTS auto-switches to the remaining power feed source to reestablish power to the
connected equipment.
The FSTS architecture provides patent pending power in-feed sharing. In the normal
operational mode, each power in-feed is active and supplying power to one half of the
total outlet receptacles. When a power in-feed fails, the receptacles normally associated
with this “downed” in-feed are automatically switched over to the remaining active power
feed. Once power is reestablished to the “downed” in-feed, the receptacles associated with
it are switched back. This feature results in switching of only half the receptacles, and their
associated load, in the event of a power in-feed failure.
A major advantage of the Industrial Grade FSTS is the power in-feed sharing which reduces
wear on the relays. It also utilizes our patented arc suppression technology to prevent arcing
between the relay points and contacts during power in-feed transfers. This is accomplished
by utilizing solid state devices in conjunction with electromechanical relays. Solid state
devices are used to both break and make connections to the electromechanical relay,
allowing the isolation relay to make and break its contacts without heavy load currents
being present.
Key Features
* Dual Input Power: Supply single-power corded equipment with dual redundant power feeds
First feed provides power to one half the outlets; second feed supplies the other half
* Fast Transfer Rates: Primary to secondary power transfer is 10-16 milliseconds maximum
Power interruption will not affect uptime or performance
Phased Synchronization between power input feeds not required
* Voltage: 100-120 or 208-240VAC
Patented Arc-Suppression: Prevents arcing between relay points and contacts during power in-feed transfers
Branch Circuit Protection: Compliant to UL 60950-1
Visual Indication: LED indicators easily distinguish which power source is supplying power to the outlets
Monitors the load per circuit
Cable-retention brackets for power outlets