Free Shipping Over $99
Free Shipping Over $99
Free Shipping Over $99
Free Shipping Over $99
Square D HJL36045 Molded Case Circuit Breaker
- 45A
- 3 Pole
- Unit Mount
Square D
HJL36045
Molded Case Circuit Breaker
Brand
Square D
SKU
HJL36045
Quantity
Shop with Confidence
Add an extra year of protection in your cart.
Square D HJL36045 - 45A 3 Pole Molded Case Circuit Breaker
New
Quantity
Similar Items
40A 3 Pole Molded Case Circuit Breaker
60A 3 Pole Molded Case Circuit Breaker
30A 3 Pole Molded Case Circuit Breaker
Description
Delivering advanced circuit protection, this 45A three-pole MCCB belongs to the highly regarded PowerPacT H-Frame family. It provides essential LI trip functions tailored for demanding industrial applications. The unit-mount configuration allows for straightforward integration into standard control panels and switchboards. Factory-installed lugs accept 14 to 3/0 AWG conductors for versatile wiring. An adjustable magnetic trip mechanism allows engineers to fine-tune the instantaneous response.Specifications
| Brand | Square D |
|---|---|
| Part Number | HJL36045 |
| Series | HJL |
| Amperage | 45A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480VAC, 600VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 100kA @ 240VAC, 65kA @ 480VAC, 25kA @ 600VAC, 20kA @ 250VDC |
| Frame Type | HJL |
|---|---|
| Terminal Type | Lugs |
| For Use With | Industrial Control Panels, Enclosures, Switchboards |
| Wire Gauge | 14-3/0 AWG (Al/Cu) |
| Max Wire | 3/0 AWG |
| Min Wire | 14 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, Alarm Switch, Undervoltage Release, Rotary Handle, Motor Operator |
|---|---|
| Accessories | Lugs |
| Standards | CSA C22.2 No 5, IEC 60947-2, NEMA AB 1, UL 489 |
| Approval | CCC, CE, CSA, HACR, IEC, NOM, UL |
| Temp Rating | -25C to 70C |
| Construction Features | Current Limiting, HACR Rated, Visual Trip Indicator, Reverse Feed, Non-Interchangeable Trip |
Product FAQs
8 answersWhat does the "J" in the HJL36045 catalog number signify?
The "J" indicates the interrupting capacity tier within the Square D PowerPacT H-frame family. It signifies that the breaker is rated for 100kA at 240VAC, 65kA at 480VAC, and 25kA at 600VAC.
Can the HJL36045 be used in DC electrical systems?
Yes, this thermal-magnetic circuit breaker is rated for use in DC applications up to 250VDC, where it provides an interrupting rating of 20kA.
What is the difference between the HJL36045 and the HJA36045?
The HJL36045 is a unit-mount circuit breaker designed for installation in standard industrial control panels and enclosures using feed-thru lug connections. The HJA36045 is the I-Line version, featuring a plug-on bracket specifically for Square D I-Line panelboards and switchboards.
Is the HJL36045 suitable for reverse-fed applications?
Yes. Standard unit-mount PowerPacT H-frame thermal-magnetic circuit breakers, including the HJL36045, feature factory-sealed trip units and are suitable for reverse feeding.
What wire sizes are compatible with the standard lugs on the HJL36045?
The factory-installed line and load lugs on this breaker accept 14 AWG to 3/0 AWG aluminum or copper conductors.
Can I swap or upgrade the trip unit on the HJL36045?
No. The standard HJL36045 comes with a factory-sealed, non-interchangeable thermal-magnetic trip unit. PowerPacT breakers require a "T" suffix in the catalog number to support field-replaceable trip units.
What does the "LI" trip function code mean for this breaker?
The "LI" designation stands for Long-Time and Instantaneous trip functions. The Long-Time (L) function provides thermal protection against overloads, while the Instantaneous (I) function provides magnetic protection against short circuits.
What older Square D circuit breakers does the HJL36045 replace?
The PowerPacT H-frame series, including the HJL36045, is the modern replacement for obsolete Square D FA, FC, and FH frame circuit breakers. When upgrading, verify your mounting and space requirements, as the physical dimensions may differ.
SuperClub
Join free. Get 500 SuperPoints.
Earn points on eligible purchases and redeem them at checkout.
100 SuperPoints = $1 off.
Warranties
Add an extra year of protection
60-Day Warranty
Your purchase includes 60 days of SuperBreakers warranty coverage.
Add a 1-year warranty extension in your cart.
Get a Quote
Don’t see what you’re looking for?
We source obsolete and hard-to-find parts every day.
Shipping
Free Shipping Policy
Parcel shipments with item value over $99 qualify for free economy shipping within the continental US. Please call to confirm special handling instructions. We do not charge a handling fee or require a minimum amount on any order. SuperBreakers does not ship on customer accounts.
Same Day Shipping
We strive to ship out your items the same day the order is placed. In rare circumstances SuperBreakers may reserve up to 5 business days to consolidate orders for complete shipment.
Expedited Shipments
Orders being shipped via Next Day Air, 2 Day Shipping or 3 Day Shipping must be received by 3 PM EST to guarantee same-day shipments. Expedited orders only ship on normal business days. Shipments will NOT be sent out on Saturdays and Sundays.
International Shipping
All International orders require a $1,000 minimum order threshold. Due to the special nature of these shipments, we require that these be placed with a SuperBreakers representative. Additional shipping and instructions will apply. All International Orders are Non-Cancel and Non-Refundable.