Ampteks Products


Insulated Case

Insulated Case breakers are similar to Molded Case in that they are completly enclosed in a housing made of insulating material. The housing is deigned with two halfs that can be seperated to perform repairs or add accessories. Insulated case breakers have ratings up to 6300A and are available as bolt-in or draw-out construction, as well as several interal accessories.


Every insulated case that leaves our facility is fully refurbished. In addition to NETA/ANSI testing specifications, we measure current, voltage, and timing for all motors, closing coils, UVR’s and shunt trips. This provides you unparalleled data collection and documentation.


If you do not find the breaker for your requiments in our inventory please email or call as we can build out the breaker accessories to your specific application. There is also inventory that has not been entered.

Insulated Case Circuit Breaker

Inventory No: 2650126
Catalog No: SPB-50

225A, 600V, SPB-50, Pow-R-Trip LS, Electrically Operated, Draw-Out

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Manufacturer Eaton/Cutler Hammer/Westinghouse
Catalog Number SPB-50
Frame Size 225A
Frame Type SPB
Operating Mechanism Electric
Mounting Configuration Draw-Out
Voltage Class 600V
Charge Voltage 125VDC
Close Oil Voltage 125VDC
Shunt Trip Voltage 125VDC
Accessories -
Connection Diagrams -
Trip/ Sensor Size 225A
Trip Unit Manufacturer Eaton/Cutler Hammer/Westinghouse
Trip Unit Catalog Number Pow-R-Trip
Protective Functions LS
Rating Plug Catalog Number 2SPB225
Inventory Number 2650126
Location N333L

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