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The KH36125 SQUARE D 3P 125A 600V 25KA I LINE circuit breaker is designed for reliable performance in commercial and industrial settings. With a 3-phase configuration, it provides robust protection for electrical systems up to 600 volts. Its 25kA short-circuit current rating ensures maximum safety and efficiency in your power distribution needs.
The I-Line plug-in system is Square D's proprietary bus-stab connection used in their commercial and industrial I-Line panelboards and switchboards. The KH36125 installs by engaging directly onto the I-Line bus without additional hardware. It is not compatible with QO loadcentres or Homeline panels. Contact our team with your panelboard model to confirm compatibility.
The Square D KH-frame I-Line series can be difficult to source through standard distribution channels. Northern Breaker Group specializes in obsolete and hard-to-find breakers — we maintain stock of legacy Square D MCCBs and can source the KH36125 where others cannot. Request a quote through our counter locations in Calgary, Edmonton, or Vancouver, or contact us online.
The KH36125 can serve as either a main or branch breaker in a compatible Square D I-Line panelboard, provided the panel's bus rating, interrupting rating requirements, and physical space accommodate a 125 A, 3-pole KH-frame device. Always verify with the panelboard's nameplate and engineering documentation, and ensure the installation meets applicable Canadian Electrical Code (CEC) requirements.
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