Built for commercial applications, the Square D KHP36200 is a 3-pole, 200A molded case circuit breaker. It provides reliable overcurrent protection for heavy-duty electrical systems. This legacy K-Frame breaker installs into Square D switchboards and motor control centers using a secure bolt-on connection. It serves as a direct replacement for older installations and is officially replaced by the PowerPacT JGL36200. Rated 35 kAIC at 480VAC, the unit features adjustable magnetic trip functions.
What is the modern replacement for the legacy KHP36200 breaker?
The KHP36200 is a legacy K-Frame breaker. Square D officially replaced this line with the PowerPacT J-Frame series, such as the JGL36200. Note that upgrading to a PowerPacT breaker may require different mounting hardware or retrofit kits depending on your existing switchboard or motor control center.
Can I install the KHP36200 in an I-Line panelboard?
No. The KHP36200 is a bolt-on circuit breaker designed for Square D switchboards, enclosures, and motor control centers. It does not have the plug-on jaw connections required for I-Line panelboards.
What wire sizes are compatible with the terminals on this breaker?
The KHP36200 comes equipped with load-side mechanical lugs (typically AL250KA) that accept either aluminum or copper conductors ranging from 4 AWG to 350 kcmil. Ensure proper torque specifications are followed during installation.
How does the adjustable trip function work on the KHP36200?
This breaker features a thermal-magnetic trip unit with an LI (Long-Time and Instantaneous) profile. The thermal overload protection is fixed at 200A, while the magnetic short-circuit protection is adjustable, allowing electricians to fine-tune the instantaneous trip threshold to coordinate with other devices in the system.
Is the KHP36200 rated for direct current (DC) systems?
Yes. In addition to its AC ratings, this breaker is certified for use in DC applications up to 250VDC, where it provides a 10kA interrupting capacity.
How is the KHP36200 mounted within a switchboard?
This unit utilizes a secure bolt-on connection to attach directly to the busbars on the line side. The load side utilizes standard mechanical lugs for wire termination.
Is the KHP36200 suitable for HVAC equipment?
Yes, this breaker is HACR rated, meaning it is certified for use with commercial heating, air conditioning, and refrigeration equipment.
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