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
Quantity
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Square D KHL36225-1212 - 225A 3 Pole Molded Case Circuit Breaker
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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
| 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 |
| 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 |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed Thermal, Adjustable Magnetic |
| 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 answersWhat 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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