HDL36110 - Square D - Molded Case Circuit Breakers Feed-Thru - 110 Amp - 3 Pole - 600 V
HDL36110 - Square D - Molded Case Circuit Breakers Feed-Thru - 110 Amp - 3 Pole - 600 V
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Square D HDL36110 – 110 Amp Molded Case Circuit Breaker, Feed-Thru / Unit Mount
An exact replacement for discontinued KAL36110 K-Frame units, the Square D HDL36110 is a 3-pole, 110A molded case circuit breaker from the modern PowerPacT H-Frame series. It provides essential long-time and instantaneous (LI) thermal-magnetic protection for commercial and industrial electrical systems.
Designed for unit-mount configurations, it integrates easily into industrial control panels, switchboards, and enclosures, delivering a 25 kAIC interrupting rating at 240VAC and 14 kAIC at 600VAC.
Product Specifications
| Brand | Square D / Schneider Electric |
| Series | HDL (PowerPacT H-Frame) |
| Part Number | HDL36110 |
| Amperage | 110A |
| Voltage | 240VAC, 480VAC, 600VAC, 250VDC |
| Poles | 3 |
| AIC Rating | 25kA @ 240VAC, 18kA @ 480VAC, 14kA @ 600VAC, 20kA @ 250VDC |
| Mounting Style | Unit Mount / Feed-Thru |
| Terminal Type | Lugs |
| For Use With | Industrial Control Panels, Switchboards, Industrial Enclosures |
| Trip Technology | Thermal Magnetic (Non-Interchangeable) |
| Trip Function | LI – Long-Time, Instantaneous (Fixed Thermal, Fixed Magnetic) |
| Wire Range | 14 AWG – 3/0 AWG (Al/Cu) |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch, Motor Operator, Rotary Handle, Visual Trip Indicator, Padlock Attachment |
| Standards | CSA C22.2 No. 5, HACR, IEC 60947-2, NEMA AB 1, NOM-003-SCFI-2000, UL 489 |
| Approvals | CE, CSA, IEC, NOM, UL |
| Temp Rating | -25°C to 70°C |
| Construction Features | HACR Rated, Current Limiting, Trip-Free Mechanism, Non-Interchangeable Trip, Reverse Feed, RoHS Compliant, Mercury Free |
Why Choose the Square D HDL36110?
- Exact KAL36110 Replacement: Drop-in upgrade path for discontinued K-Frame units.
- Unit-Mount Versatility: Fits industrial control panels, switchboards, and enclosures.
- Trip-Free Mechanism: Cannot be held closed on a fault condition.
- RoHS Compliant, Mercury Free: Meets modern environmental standards.
Common Applications
- Industrial control panel protection
- Switchboard and enclosure distribution
- KAL36110 replacement projects
- Commercial and industrial power distribution
Frequently Asked Questions
What is the HDL36110 designed to replace?
It's an exact replacement for the discontinued KAL36110 K-Frame breaker.
What is the interrupting rating of the HDL36110?
25 kA at 240VAC, 18 kA at 480VAC, 14 kA at 600VAC, and 20 kA at 250VDC.
How does the HDL36110 mount?
It uses a unit-mount / feed-thru configuration for industrial control panels, switchboards, and enclosures.
Is the trip mechanism adjustable?
No — it's a fixed thermal-magnetic, non-interchangeable trip with LI function.
Is this a new unit?
Yes — this listing (SKU HDL36110-N) is new-in-box and ready for immediate installation.