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Square D HDP36040 Molded Case Circuit Breaker
- 40A
- 3 Pole
- Unit Mount
Square D
HDP36040
Molded Case Circuit Breaker
Brand
Square D
SKU
HDP36040
Quantity
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Square D HDP36040 - 40A 3 Pole Molded Case Circuit Breaker
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Description
Engineered for commercial applications, the Square D HDP36040 is a 40A, 3-pole MCCB from the PowerPacT H-Frame family. It provides robust LI protection. This unit-mount breaker installs into industrial control panels and switchboards. It includes load-side lugs, accepts 14-3/0 AWG wire, and substitutes for HDL36040 units. Rated 14kAIC at 600VAC, it features a fixed thermal and adjustable magnetic trip mechanism, Visi-Trip indicator, and HACR certification.Specifications
| Brand | Square D |
|---|---|
| Part Number | HDP36040 |
| Series | HDP |
| Amperage | 40A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480VAC, 600VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 25kA @ 240VAC, 18kA @ 480VAC, 14kA @ 600VAC, 20kA @ 250VDC |
| Frame Type | HDP |
|---|---|
| Terminal Type | Lugs |
| For Use With | Industrial Control Panels, 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, Undervoltage Release, Alarm Switch, Motor Operator, Rotary Handle, Padlock Attachment |
|---|---|
| Accessories | Load Side Lugs Included |
| Standards | CSA C22.2 No. 5, IEC 60947-2, NEMA AB 1, UL 489 |
| Approval | CE, CSA, IEC, NOM, UL |
| Temp Rating | -25C to 70C |
| Construction Features | HACR Rated, Reverse Feed, Trip-Free Mechanism |
Product FAQs
8 answersWhat is the difference between the Square D HDP36040 and the HDA36040?
Both are 40A, 3-pole PowerPacT H-frame circuit breakers with a D-level interrupting rating. The HDP36040 is a unit-mount, bolt-on breaker for control panels and switchboards, while the HDA36040 is designed for plug-on installation in I-Line panelboards.
What does the D in the HDP36040 catalog number represent?
The D indicates the breaker's interrupting rating. For PowerPacT H-frame breakers, the D-rating provides 25kA at 240VAC, 18kA at 480VAC, and 14kA at 600VAC. Higher interrupting ratings are available in G, J, and L models.
Can the Square D HDP36040 be reverse fed?
Yes, standard thermal-magnetic PowerPacT H-frame circuit breakers like the HDP36040 are suitable for reverse feeding applications.
Which replacement lug kit is compatible with the HDP36040?
The AL150HD mechanical lug kit is standard for 15A to 150A PowerPacT H-frame breakers. It accepts 14 AWG to 3/0 AWG aluminum or copper wire.
What types of enclosures or panels is the HDP36040 designed for?
As a unit-mount, bolt-on breaker, it is typically installed in industrial control panels, switchboards, and standalone enclosures. It is not compatible with I-Line panelboards.
Is the trip unit on the HDP36040 adjustable?
The HDP36040 features a thermal-magnetic trip unit with a fixed long-time thermal setting of 40A and an adjustable instantaneous magnetic trip setting.
Can I upgrade the HDP36040 if my system requires a higher interrupting rating?
Yes. If your system requires a higher short-circuit rating, you can upgrade to the HGP36040 for 35kA at 480V, the HJP36040 for 65kA at 480V, or the HLP36040 for 100kA at 480V. These alternatives maintain the same physical footprint and 40A rating.
Does the HDP36040 provide ground fault protection?
No, the HDP36040 is equipped with a standard LI (Long-Time, Instantaneous) thermal-magnetic trip unit, which provides overload and short-circuit protection. It does not include integrated ground fault equipment protection features.
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