Bypass/isolation switches

These bypass/isolation switches are UL labeled and listed for 30-cycle closing and withstand ratings based on testing per UL Standard 1008; are available in continuous current ratings from 100 A to 3,000 A; and are designed to simplify the selective coordination of overcurrent devices in backup power systems for mission-critical facilities.

01/05/2010


Russelectric RTS Series Bypass - Isolation Switch
The RTS series bypass/isolation switches are UL labeled andlisted for 30-cycle closing and withstand ratings based on testing per ULStandard 1008. Available in continuous current ratings from 100 A to 3,000 A,these switches simplify the selective coordination of overcurrent devices inbackup power systems for mission-critical facilities. The 30-cycle rating allowsdownstream overcurrent protective devices to clear a fault before upstreamdevices have the chance to trip. Consequently, they greatly simplify theengineering task of selective coordination mandated by the National ElectricalCode for emergency and legally required standby systems. All switches in the seriescome equipped with the RPTCS microprocessor-based transfer control system.

The switches combine an automatic transfer switch with a

manual bypass/isolation switch, which allows the transfer switch to be isolated

for inspection, maintenance, repair or testing. The bypass/isolation switch is

designed to also function as a manually-operated backup transfer switch when

the unit's automatic transfer switch is disabled or de-energized. With the

bypass/isolation switch above the ATS, the unit's vertical space-saving design

reduces its footprint. Feeder connections are housed in a third compartment

accessible through a rear panel or door, and the compartments are separatedby

barriers to protect personnel. The ATS is on casters so that, once it has been

bypassed and isolated, it can be rolled out of the enclosure safely and easily.
The switches are available in versions for open-transition

(break-before-make operation) and closed-transition transfer as well as

load-break and no-load-break bypass. Open-transition versions are available

with single or dual operators. They are also available with an external manual

operator that allows manual operation of the switch with the door fully closed

for greater arc flash protection.
Russelectric Inc.
www.russelectric.com



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