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Square D KHL36225-1212 Molded Case Circuit Breaker

  • 225A
  • 3 Pole
  • Unit Mount
Square D KHL36225-1212
Molded Case Circuit Breaker
Brand Square D
SKU KHL36225-1212
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  • 225A
  • 3 Pole
  • Unit Mount

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Square D KHL36225-1212 - 225A 3 Pole Molded Case Circuit Breaker

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$2,945.47 Check Stock

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Description

Built for advanced monitoring, the Square D KHL36225-1212 is a 3-pole, 225A MCCB that includes a factory-installed auxiliary switch (1A/1B) for external status signaling. This K-Frame unit mount breaker fits Square D enclosures, switchboards, and motor control centers. It is a legacy component, replaced by the PowerPacT J-Frame (JGL36225). Delivering 65kAIC at 240VAC and 35kAIC at 480VAC, it ensures robust high interrupting capacity for industrial facilities.

Specifications

Key specifications
Brand Square D
Part Number KC34250-1021
Series KHL
Amperage 225A
Poles 3
Mounting Style Unit Mount
Voltage 600VAC, 250VDC
Phase 3
AIC Rating 65kA @ 240VAC, 35kA @ 480VAC, 25kA @ 600VAC, 10kA @ 250VDC
Fit and installation
Frame Type K
Terminal Type Lugs
For Use With Square D Enclosures, Switchboards, Motor Control Centers
Wire Gauge 4 AWG - 350 kcmil (Al/Cu)
Max Wire 350 kcmil
Min Wire 4 AWG
Protection and operation
Trip Technology Thermal Magnetic
Trip Function Code LI
Trip Function Long-Time, Instantaneous
Trip Adjustability Fixed Thermal, Adjustable Magnetic
Standards and features
Available Options Shunt Trip, Undervoltage Release, Alarm Switch, Padlock Attachment
Accessories Line and Load Lugs Included, Auxiliary Switch (Factory Installed)
Standards CSA C22.2 No. 5, IEC 60947-2, NEMA AB 1, UL 489
Approval CE, CSA, HACR, UL
Temp Rating 40C
Construction Features High Interrupting Capacity, HACR Rated

Product FAQs

10 answers
What enclosures or panels is the KHL36225-1212 compatible with?

This K-frame breaker is designed for use in Square D enclosures, switchboards, and motor control centers.

What wire sizes are accepted by the lugs on the KHL36225-1212?

The factory lugs accept 4 AWG to 350 kcmil aluminum or copper wire.

What does the -1212 suffix indicate on this Square D breaker?

The -1212 suffix indicates the breaker includes a factory-installed 1A/1B auxiliary switch, providing one normally open and one normally closed contact.

What are the wire colors for the auxiliary switch on the KHL36225-1212?

For the -1212 suffix auxiliary contacts, the normally open wire is yellow, the normally closed wire is blue, and the common wire is striped.

Can I adjust the trip settings on the KHL36225-1212?

Yes, this breaker features a thermal-magnetic trip unit with an adjustable magnetic (instantaneous) trip setting, while the thermal (long-time) setting is fixed.

Is the KHL36225-1212 a direct replacement for older K-frame breakers?

Yes, it belongs to the Square D Legacy MCCB family and serves as a direct replacement for older K-frame breakers with matching specifications and auxiliary switch requirements.

What operating mechanisms are compatible with the KHL36225-1212?

This breaker is compatible with Square D 9421 Type L door-mounted variable depth operating mechanisms designed for 250A KAL, KCL, and KHL frames.

What are the physical dimensions of the KHL36225-1212?

This K-frame circuit breaker measures 8 inches high, 4.5 inches wide, and 4.75 inches deep.

What safety standards does the KHL36225-1212 meet?

This breaker is UL 489 Listed and CSA certified for use in commercial and industrial power distribution systems. It is also HACR rated.

Can the KHL36225-1212 be used to replace a KAL36225-1212?

Yes, the KHL series features a higher interrupting capacity than the standard KAL series and can safely replace a KAL36225-1212 in the same physical footprint.

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