Author: Winn Hardin

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Breaker History 101

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Westinghouse started making load break switches in 1950. Popular switches were 5–15 kV. The early switches were called load break fusible (LBF). Westinghouse made the next generation of switches, Westinghouse load interrupters (WLI), though 1980. Cutler Hammer also made load interrupters. Cutler Hammer now makes medium-voltage switchgear (MVS). It is available in voltages of 5–15 kV and 38 kV. Circuit Breakers Sales NE, Inc. stocks these different generations of switches. […]

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Insulated Case Circuit Breaker List

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Siemens SBA-1600 EO/BI SBH-2000 EO/DO SBH-4000 EO/DO SBS-4000 MO/BI WLM3A340 EO/DO Square D / Schneider NW08H1 EO/DO NW12N EO/DO NW16H3 MO/DO NW30H EO/DO NW40H EO/DO NW40L1 EO/DO NW50L1 EO/DO NW16H EO/DO NW40H MO/BI SED364000LSGA4 MO/DO SEF363000LSIGS3 MO/BI NT08HF EO/BI General Electric SHD40B440 MO/DO SHF20G220 MO/BI SSD30B330 MO/DO TP1616SSZE3 EO/DO THC1616SSE1C EO/DO THC3030SSE1C EO/DO THPC3625ET1 MO/BI […]

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Square D / Schneider type NT08HF 800A Electrically Operated Insulated Case Circuit Breaker.

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Part/Catalog Number: NT08HF EO/FMOriginal Manufacturer: Square D / SchneiderProduct Line: NTAmps: 800A FrameOperation: Electrically OperatedMounting: Fixed Mounted / Bolt-in Trip Unit: Non Automatic SwitchVoltage: 600V MaxInterrupting Capacity: 50kAIC Description: The Square D NT08HF is an 800A Frame, Electrically Operated, Fixed Mounted / Bolt-in Style Insulated Case Circuit Breaker. The NT08HF is a non automatic switch and therefore […]

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General Electric type TPSS2606 600A Manually Operated Insulated Case Circuit Breaker.

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Part/Catalog Number: TPSS2606Original Manufacturer: General Electric / GEProduct Line: Powerbreak I – TPSSAmps: 600A FrameOperation: Manually OperatedMounting: Draw-out Trip Unit: VersaTrip LSIGVoltage: 600V MaxInterrupting Capacity: 100kAIC Description: The GE TPSS2606 is a 600A Frame, Manually Operated, Draw-out Style Insulated Case Circuit Breaker. It was originally outfitted with the VersaTrip trip unit, however, new trip unit models are […]

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General Electric type TP2525TTR 2500A Manually Operated Insulated Case Circuit Breaker.

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Part/Catalog Number: TP2525TTROriginal Manufacturer: GE / General ElectricProduct Line: Power Break IAmps: 2500A FrameOperation: Manually OperatedMounting: Fixed Mounted/Bolt-in Trip Unit: MicroVersaTrip PlusVoltage: 600V MaxInterrupting Capacity: 100kAIC Description: The GE Power Break I type TP2525TTR is a 2500A Frame, Manually Operated, Fixed/Bolt-in Style Insulated Case Circuit Breaker. It was originally outfitted with the MicroVersaTrip trip unit, however, new […]

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General Electric type TPMM5616 1600A Manually Operated Insulated Case Circuit Breaker.

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Part/Catalog Number: TPMM5616Original Manufacturer: General Electric / GEProduct Line: Powerbreak I – TPMMAmps: 1600A FrameOperation: Manually OperatedMounting: Fixed Mounted / Bolt-inTrip Unit: MagneTripVoltage: 600V MaxInterrupting Capacity: 100kAIC Description: The GE TPMM5616 is a 1600A Frame, Manually Operated, Bolt-in / Fixed Mounted Insulated Case Circuit Breaker. It was originally outfitted with the Magnetrip mag only trip unit, however, […]

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General Electric type THCMMF76E3 2500A Electrically Operated 2P DC Insulated Case Circuit Breaker.

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Part/Catalog Number: THCMMF76E3Original Manufacturer: General Electric / GEProduct Line: Powerbreak I – THCAmps: 2500A FrameOperation: Electrically Operated – 125VDCMounting: Draw-out Trip Unit: MagneTrip Voltage: 600V MaxInterrupting Capacity: 100kAIC Description: The GE THCMMF76E3 is a 2500A Frame, Electrically Operated, 2-Pole DC, Draw-out Style Insulated Case Circuit Breaker. Although the unit photographed is an electrically operated unit, manually operated […]

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General Electric type TCVF7625 2500A Manually Operated Insulated Case Circuit Breaker.

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Part/Catalog Number: TCVF7625Original Manufacturer: General Electric / GEProduct Line: Powerbreak I – TCAmps: 2500A FrameOperation: Manually OperatedMounting: Draw-out StyleTrip Unit: VersaTrip LIVoltage: 600V MaxInterrupting Capacity: 100kAIC Description: The GE TCVF7625 is a 2500A Frame, Manually Operated, Draw-out Style Insulated Case Circuit Breaker. It was originally outfitted with the VersaTrip trip unit, however, new trip unit models are […]

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General Electric type THP88SS 800A Manually Operated Insulated Case Circuit Breaker.

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Part/Catalog Number: THP88SSOriginal Manufacturer: General Electric / GEProduct Line: Powerbreak I – THPAmps: 800A FrameOperation: Manually OperatedMounting: Fixed Mounted / Bolt-inTrip Unit: MicroVersaTrip RMS-9 LSIGVoltage: 600V MaxInterrupting Capacity: 100kAIC Description: The GE THP88SS is an 800A Frame, Manually Operated, Fixed Mounted/Bolt-in Style Insulated Case Circuit Breaker. It was originally outfitted with the MicroVersaTrip RMS-9 trip unit, however, […]

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