3P series K-Frame molded case circuit breakers offer branch or feeder circuit protection against overload or short circuits. K-Frame 3-pole breakers, with adjustable thermal magnetic trip, are available in current capacities of 250 to 400A at 600VAC/250VDC (UL489 rating). Kits that include an aux contact, shunt trip or undervoltage release are also offered.
These 3 pole breakers are designed to provide branch and feeder circuit protection in industrial control panels. The 3P Series Molded Case Circuit Breakers provide overload protection in conductors and short circuit protection in connected equipment such as motors. Shunt trip units and other accessories are easily field installable for these frame size models.
These parts are available for sale in North America only.
They are UL listed for installation in UL 508 control panels. Their small size, in relation to standard circuit breakers or other comparable devices, saves panel space.
K-Frame MCCB prices start at
Accessories available for the K3P Series molded case circuit breakers include: