Square D KHL26226-1021 Molded Case Circuit Breaker
- 225A
- 2 Pole
- Unit Mount
Quantity
Square D KHL26226-1021 - 225A 2 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
Description
Engineered for commercial and industrial applications, the Square D KHL26226-1021 is a 2-pole, 225A molded case circuit breaker from the legacy K-Frame family. It provides reliable thermal-magnetic protection with long-time and instantaneous (LI) trip functions. This unit mount MCCB installs into Square D enclosures, switchboards, and motor control centers. Rated for 65kAIC at 240V, it features a factory-installed 120-240VAC shunt trip, allowing for remote tripping capabilities.Specifications
| Brand | Square D |
|---|---|
| Part Number | KHL26226-1021-R |
| Series | KHL |
| Amperage | 225A |
| Poles | 2 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480VAC, 600VAC, 250VDC |
| Phase | 1 |
| 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 | Auxiliary Switch, Undervoltage Release, Alarm Switch |
|---|---|
| Accessories | Line and Load Lugs Included, Shunt Trip (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 | HACR Rated, High Interrupting Capacity |
Product FAQs
5 answersWhat does the -1021 suffix indicate on the KHL26226-1021?
The -1021 suffix designates that this breaker includes a factory-installed 120/240VAC shunt trip. This allows the breaker to be tripped remotely, which is typically required for emergency shutdown systems.
What is the modern replacement for the legacy KHL26226-1021?
The KHL series is part of the legacy Square D K-frame lineup. For modern upgrades or new installations, the manufacturer recommends transitioning to the PowerPact J-frame series, paired with a field-installable shunt trip accessory.
Which replacement lug kit is compatible with this 225A K-frame breaker?
The standard mechanical lug kit for this K-frame breaker is the Square D AL250KA. It accepts 4 AWG to 350 kcmil aluminum or copper conductors.
Can I install the KHL26226-1021 in a standard Square D load center?
No. This is a unit-mount, feed-thru molded case circuit breaker designed for use in Square D enclosures, switchboards, and motor control centers. It is not compatible with standard QO or Homeline residential load centers.
Does this breaker provide adjustable trip settings?
The KHL26226-1021 features a thermal-magnetic trip unit with a fixed thermal element for overload protection and an adjustable magnetic element for short-circuit protection. This allows you to fine-tune the instantaneous trip response for your specific application.
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