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Square D KHL36225 Molded Case Circuit Breaker
- 225A
- 3 Pole
- Unit Mount
Square D
KHL36225
Molded Case Circuit Breaker
Brand
Square D
SKU
KHL36225
Quantity
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Square D KHL36225 - 225A 3 Pole Molded Case Circuit Breaker
Re-Certified
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Square D KHL36225 - 225A 3 Pole Molded Case Circuit Breaker
New
Quantity
| Brand | Square D |
|---|---|
| Part Number | KHL36225 |
| 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 | KHL |
|---|---|
| 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, Auxiliary Switch, Undervoltage Release, Alarm Switch |
|---|---|
| Accessories | Line and Load Side Lugs Included |
| 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 |
Quantity
Square D KHL36225 - 225A 3 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
| Brand | Square D |
|---|---|
| Part Number | KHL36225-R |
| 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 | KHL |
|---|---|
| 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, Auxiliary Switch, Undervoltage Release, Alarm Switch |
|---|---|
| Accessories | Line and Load Side Lugs Included |
| 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 |
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Description
Engineered for industrial environments, the Square D KHL36225 is a 3-pole, 225A molded case circuit breaker featuring fixed thermal and adjustable magnetic trip settings. This unit mount MCCB installs into Square D enclosures, switchboards, and motor control centers. As a legacy K-Frame device, it replaces older units and is superseded by the JGL36225. Rated for 65kAIC at 240VAC and 35kAIC at 480VAC, it provides high interrupting capacity for demanding networks.Specifications
| Brand | Square D |
|---|---|
| Part Number | KHL36225-R |
| 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 | KHL |
|---|---|
| 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, Auxiliary Switch, Undervoltage Release, Alarm Switch |
|---|---|
| Accessories | Line and Load Side Lugs Included |
| 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
7 answersIs the Square D KHL36225 still actively manufactured?
The K-frame series is a legacy product line. While it has largely been superseded by the PowerPact J-frame series (such as the JGL36225) in newer installations, K-frame breakers like the KHL36225 are still sourced for direct replacements in existing switchboards and motor control centers.
What does the H in the KHL36225 part number signify?
In Square D legacy K-frame nomenclature, the H designates the interrupting capacity. The KHL series features a high interrupting rating of 35kA at 480VAC, distinguishing it from standard-rated K-frame breakers.
Can the KHL36225 circuit breaker be reverse fed?
Yes. Standard Square D K-frame thermal-magnetic breakers without Line and Load markings are suitable for reverse feeding. This allows them to be backfed in panelboards or switchboards, provided an appropriate retaining bracket or hold-down kit is used per NEC requirements.
What enclosures or panels accept the KHL36225?
This unit-mount breaker is designed for installation in Square D enclosures, switchboards, and motor control centers that accommodate legacy K-frame devices. It is a feed-thru breaker and is not compatible with I-Line panelboards, which require plug-on I-Line breakers.
How does the adjustable magnetic trip work on the KHL36225?
The KHL36225 features a fixed thermal element for overload protection and an adjustable magnetic element for short-circuit protection. The magnetic trip settings can be adjusted on the face of the breaker to coordinate with downstream devices and prevent nuisance tripping.
What wire sizes are accepted by the lugs on the KHL36225?
The standard lugs on this breaker accept 4 AWG to 350 kcmil aluminum or copper wire. When installing, ensure the conductors are properly torqued to the manufacturer specifications to maintain a secure and compliant connection.
Does the KHL36225 provide ground fault or arc fault protection?
No. The KHL36225 is a standard thermal-magnetic circuit breaker providing only long-time (overload) and instantaneous (short-circuit) protection. It does not include integrated equipment ground fault or arc fault capabilities.
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