KA, KC, KH, KI Molded Case Circuit Breakers

KA/KH Molded Case Circuit Breakers

• Fixed thermal, adjustable AC magnetic trip units from 70-250 A up to 600 Vac
• KA Interrupting ratings (AIR) of 25 kA at 480 Vac
• KH Interrupting ratings (AIR) of 35 kA at 480 Vac
• 2- and 3-pole unit-mount and I-line constructions
• UL 489 Listed, CSA and IEC certified
• Obsolete as of 2009

KC Molded Case Circuit Breakers

• Fixed thermal, adjustable AC magnetic trip units from 110-250 A up to 480 Vac
• Interrupting ratings (AIR) of 65 kA 480 Vac
• 2- and 3-pole unit-mount and I-line constructions
• UL 489 Listed, CSA and IEC certified
• Obsolete as of 2009

KI Current Limiting Molded Case Circuit Breakers

• Thermal magnetic trip units from 110-250 A up to 600 Vac
• Current limiting
• Interrupting rating of 200 kA 480 Vac
• 2- and 3-pole unit-mount and I-line constructions
• UL 489 Listed, CSA and IEC certified
• Obsolete as of 2013

Used in industrial enclosures, panelboards, switchboards, busway plug-in units, combination starters, or motor control centers.

KI current limiting circuit breakers are used for electrical systems where high fault currents can occur.