Breaker History 101

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

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.

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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