Joslyn Hi-Voltage
8155 T&B Boulevard
Memphis, Tennessee-38125, USA
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Vbt Transmaster Switches (Up To 69kv)

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The Transmaster Electric Furnace Switch controls the operation of electric furnaces, which require large amounts of power under heavy duty conditions. The Transmaster was developed to eliminate frequent and costly circuit breaker maintenance. The Transmaster is a low cost, heavy duty vacuum switch designed to deliver maintenance-free switching of electric furnaces.

The VBT Transmaster switch provides reliable and safe interruption. Interruption takes place inside a sealed vacuum interrupter which eliminates all external arcing, contamination of contacts, and generates no hazardous gases. The interrupter is enclosed in a housing and insulated with the field proven Joslyte™ solid dielectric foam.

The VBT Transmaster's rugged, compact design makes this unit ideal for transformer vault installation. The VBT operates uniformly on all power factors and is available for system voltages up to 69kV.


Long, Maintenance-Free Life
Low Cost Installation
Lightweight units are self-contained and completely factory assembled, requiring no special foundations or costly supports
Vacuum Interruption
No gas, oil, or other medium is required to maintain electrical properties
Safety
No hot exhaust or ionized gases are liberated during interruption and the switch contains no explosive, volatile materials
Auxilliary Contacts
Eight heavy-duty auxiliary contacts are provided for remote indications, control and interlocking of other furnace functions or equipment
Weatherproof Control Cabinet
Interconnection wiring is provided at easily accessible internal terminal strips remote from high-voltage lines.
Easy to Test and Monitor
Condition can be determined without dismantling by a high potential withstand test and contact resistance measurement
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