HLA36045 - Square D - Molded Case Circuit Breakers I-Line Style Plug-In - 45 Amp - 3 Pole - 600 V
HLA36045 - Square D - Molded Case Circuit Breakers I-Line Style Plug-In - 45 Amp - 3 Pole - 600 V
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Square D HLA36045 – 45 Amp Molded Case Circuit Breaker, I-Line Style Plug-In
Built for industrial distribution networks, the Square D HLA36045 is a 3-pole, 45A PowerPacT H-Frame molded case circuit breaker providing long-time and instantaneous (LI) thermal-magnetic trip functions for robust circuit protection.
This breaker mounts into Square D I-Line panelboards and switchboards, features a plug-in I-Line connection, and includes load side lugs that accommodate 14–3/0 AWG wire. It serves as a substitute for the HRA36045.
Product Specifications
| Brand | Square D / Schneider Electric |
| Series | HLA (PowerPacT H-Frame) |
| Part Number | HLA36045 |
| Amperage | 45A |
| Voltage | 240VAC, 480VAC, 600VAC, 250VDC, 500VDC |
| Poles | 3 |
| AIC Rating | 125kA @ 240VAC, 100kA @ 480VAC, 50kA @ 600VAC, 20kA @ 250VDC, 50kA @ 500VDC |
| Mounting Style | I-Line Plug-In |
| Terminal Type | Lugs |
| For Use With | Square D I-Line Panelboards, Switchboards |
| 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 |
| Accessories | Load Side Lugs Included |
| Standards | CSA C22.2 No. 5, IEC 60947-2, NEMA AB 1, UL 489 |
| Approvals | CE, CSA, HACR, NOM, UL |
| Temp Rating | -25°C to 70°C |
| Construction Features | Current Limiting, HACR Rated, Visual Trip Indicator, Non-Interchangeable Trip, 80% Rated, Mercury Free, PVC Free |
Why Choose the Square D HLA36045?
- HRA36045 Substitute: Compatible upgrade for existing installations.
- High Interrupting Capacity: 100 kAIC at 480VAC.
- 80% Rated, HACR Rated: Suited for continuous industrial loads.
- Load-Side Lugs Included: Accepts 14–3/0 AWG conductors.
Common Applications
- Industrial distribution networks
- Commercial power distribution panels
- HRA36045 panelboard upgrades
- Manufacturing and process control systems
Frequently Asked Questions
What panels is the HLA36045 compatible with?
Square D I-Line panelboards and switchboards that accept plug-in breakers.
What is the interrupting rating of the HLA36045?
100 kA at 480VAC, 125 kA at 240VAC, and 50 kA at 600VAC and 500VDC.
What does the HLA36045 replace?
It's a substitute for the HRA36045.
What wire sizes does it accept?
14–3/0 AWG, copper or aluminum.
Is this a new unit?
Yes — this listing (SKU HLA36045-N) is new-in-box and ready for immediate installation.