Square D KHL Series Circuit Breakers
The Square D KHL series is a high-interrupting K-Frame molded case circuit breaker rated for 250A frame size and 600VAC operation. KHL breakers provide 65kA interrupting capacity at 480V for high-fault industrial applications.
Series Specifications
| Frame | K-Frame — 250A Frame |
|---|---|
| Amperage Range | 70A – 250A |
| Voltage | 600VAC |
| Poles | 2-Pole & 3-Pole |
| Interrupting Rating | 25kA @ 600V / 65kA @ 480V / 100kA @ 240V |
| Mounting | I-Line Plug-In |
| Trip Type | Thermal Magnetic (High Interrupting) |
History and Replacement Context
The KHL series was developed as the high-interrupting version of the KAL for use in facilities with higher available fault current.
Typical Applications
- High-fault industrial distribution
- Motor feeder protection in high-fault environments
- Commercial distribution near large transformers
Available Catalog Numbers
- KHL36070 — 70A, 3 pole, 600VAC
- KHL36080 — 80A, 3 pole, 600VAC
- KHL36090 — 90A, 3 pole, 600VAC
- KHL36100 — 100A, 3 pole, 600VAC
- KHL36110 — 110A, 3 pole, 600VAC
- KHL36125 — 125A, 3 pole, 600VAC
- KHL36150 — 150A, 3 pole, 600VAC
- KHL36175 — 175A, 3 pole, 600VAC
- KHL36200 — 200A, 3 pole, 600VAC
- KHL36225 — 225A, 3 pole, 600VAC
- KHL36250 — 250A, 3 pole, 600VAC
- KHL26070 — 70A, 2 pole, 600VAC
- KHL26080 — 80A, 2 pole, 600VAC
- KHL26090 — 90A, 2 pole, 600VAC
- KHL26100 — 100A, 2 pole, 600VAC
- KHL26110 — 110A, 2 pole, 600VAC
- KHL26125 — 125A, 2 pole, 600VAC
- KHL26150 — 150A, 2 pole, 600VAC
- KHL26175 — 175A, 2 pole, 600VAC
- KHL26200 — 200A, 2 pole, 600VAC