Skip to main content
Expedited shipping available at checkout

Square D HDL36150 Molded Case Circuit Breaker

  • 150A
  • 3 Pole
  • Unit Mount
Square D HDL36150
Molded Case Circuit Breaker
Brand Square D
SKU HDL36150
Select Item Condition
Earn 1421 SuperPoints
  • 150A
  • 3 Pole
  • Unit Mount

Quantity

Bulk Pricing
Send your parts list for a volume quote.
Square D HDL36150 - 150A 3 Pole Molded Case Circuit Breaker

Square D HDL36150 - 150A 3 Pole Molded Case Circuit Breaker

New

$1,421.00 In Stock

Quantity

Similar Items

Description

Built for heavy-duty power distribution, the Square D HDL36150 is a 3-pole, 150A molded case circuit breaker. As part of the PowerPacT H-Frame series, it utilizes fixed thermal-magnetic trip technology to protect commercial and industrial circuits. This unit mount MCCB installs into switchboards and industrial control panels. It acts as a seamless, modern upgrade for legacy K-Frame KAL36150 breakers. Delivering 14 kAIC at 600VAC, it features a Visi-Trip indicator and is fully HACR rated.

Specifications

Key specifications
Brand Square D
Part Number HDL36150
Series HDL
Amperage 150A
Poles 3
Mounting Style Unit Mount
Voltage 240VAC, 480VAC, 600VAC, 250VDC
Phase 3
AIC Rating 25kA @ 240VAC, 18kA @ 480VAC, 14kA @ 600VAC, 20kA @ 250VDC
Fit and installation
Frame Type HDL
Terminal Type Lugs
For Use With Industrial Control Panels, Switchboards, Enclosures
Wire Gauge 14 AWG-3/0 AWG (Al/Cu)
Max Wire 3/0 AWG
Min Wire 14 AWG
Protection and operation
Trip Technology Thermal Magnetic
Trip Function Code LI
Trip Function Long-Time, Instantaneous
Trip Adjustability Fixed
Standards and features
Available Options Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch, Motor Operator, Rotary Handle, Padlock Attachment
Accessories Line and Load Lugs
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, Current Limiting, Visual Trip Indicator, Reverse Feed

Product FAQs

8 answers
What size wire do the standard lugs on the HDL36150 accept?

The factory-installed AL150HD lugs accept one 14 AWG to 3/0 AWG aluminum or copper wire per terminal.

Can the HDL36150 be reverse fed?

Yes, thermal-magnetic PowerPacT H-frame breakers are suitable for reverse feeding. The line and load connections are not restricted to specific sides, allowing incoming power to be connected to either end.

Can the HDL36150 be mounted on a DIN rail?

Yes. While this PowerPacT H-frame breaker is a unit-mount device by default, it can be attached to a standard 35mm DIN rail by installing a compatible adapter, such as the Schneider Electric S29305 DIN rail mounting kit.

Is the HDL36150 suitable for direct current (DC) circuits?

Yes, this thermal-magnetic breaker is rated for DC applications up to 250VDC, offering an interrupting capacity of 20 kAIC at that voltage.

What is the difference between the HDL36150 and the HGL36150, HJL36150, or HLL36150 breakers?

The third letter in the catalog number indicates the short-circuit interrupting rating. The HDL36150 has a D-rated interrupting capacity (18 kAIC at 480VAC), whereas the G, J, and L versions offer progressively higher interrupting ratings (35 kA, 65 kA, and 100 kA at 480VAC respectively). The physical dimensions and footprint remain identical across these variants.

Is the HDL36150 rated for continuous operation at 100 percent of its current rating?

No, this is a standard-rated circuit breaker. Per National Electrical Code (NEC) guidelines, it is intended to be loaded continuously at a maximum of 80 percent of its 150-amp rating.

Does the HDL36150 provide ground fault protection?

No. This breaker is equipped with standard Long-Time and Instantaneous (LI) trip functions for overload and short-circuit protection. It does not provide equipment ground fault or personal ground fault (GFCI) protection.

What internal accessories can be field-installed in the HDL36150?

PowerPacT H-frame breakers feature internal accessory compartments that can accept field-installable auxiliary contacts (OF), alarm switches (SD), overcurrent trip switches (SDE), and shunt trips or undervoltage releases (MX/MN).

SuperClub

Join free. Get 500 SuperPoints.

Earn points on eligible purchases and redeem them at checkout.

100 SuperPoints = $1 off.

Warranties

60-Day Warranty

Your purchase includes 60 days of SuperBreakers warranty coverage.

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.

Read our full shipping policy

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.