![]() L Long Time (overload protection, analygous to the inverse-time thermal trip of a thermal/magnetic breaker) S Short Time (short circuit protection of low level faul. We do not claim ownership of any other company trademark or part number referenced on our website, just fantastic value and service for our customers. Answer (1 of 2): Hello, The letters LSIG signify the type of protection and available adjustments on certain trip units. Our part number is different unless we are offering an original OEM part. provides cross references to our US Breaker brand high quality UL certified products to assist customer selection. water supply and sanitation rather than protection from natural disaster. TED134060, TED134070, TED134080, TED134100, Watford General Hospital said it received abour 40 walking wounded and ex. General Electric TEY Circuit Breakers: TEY120, TEY130, TEY215, TEY220, See NEC 517.17)ġ0.General Electric Circuit Breakers - THQB, TEY, TED, SEHA, SELA, SFHA, SFLA, SGHA, Any system with Ground Fault Protection (except for Health Care Facilities. Resistance or impedance grounded systemsĩ. ![]() A 4,000A service could be split into 5 – 800A switchesħ. Service with six disconnects or less (NEC 230.71) where each disconnect is less than 1,000 amps. Any delta system (grounded or ungrounded)Ħ. Systems over 600-volts (high or medium voltage systems)ĥ. Any system with a disconnect less than 1000 ampsĢ. Specifically, Ground Fault Protection is NOT required for the following:ġ. These devices must also have regular maintenance including annual calibration.Īs mentioned earlier, there are some exceptions to the Ground Fault Protection rule. Improper wiring of the system, including accidental neutral return paths can easily negate the effectiveness of a Ground Fault Protection device. Also, the reliability of the GFP systems depends on many factors beyond the proper settings on the device. Ground Fault Protection systems are very sophisticated devices, often with many variable settings to “Dial-In” the specific requirements needed for your site.
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