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Square D HGA36040 Molded Case Circuit Breaker

  • 40A
  • 3 Pole
  • I-Line
Square D HGA36040
Molded Case Circuit Breaker
Brand Square D
SKU HGA36040
Select Item Condition
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  • 40A
  • 3 Pole
  • I-Line

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Square D HGA36040 - 40A 3 Pole Molded Case Circuit Breaker

Square D HGA36040 - 40A 3 Pole Molded Case Circuit Breaker

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$692.99 In Stock

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Description

Belonging to the PowerPacT H-Frame series, the Square D HGA36040 is a 3-pole, 40A molded case circuit breaker. It delivers reliable thermal-magnetic protection with fixed LI trip functions. It installs into Square D I-Line panelboards and switchboards, effectively replacing older FA36040 and FH36040 breakers to maintain existing infrastructure. With an interrupting capacity of 35 kAIC at 480VAC, this HACR-rated breaker provides current-limiting performance and includes load side lugs.

Specifications

Key specifications
Brand Square D
Part Number HGA36040
Series HGA
Amperage 40A
Poles 3
Mounting Style I-Line
Voltage 240VAC, 480Y/277VAC, 480VAC, 600Y/347VAC, 600VAC, 250VDC, 500VDC
Phase 3
AIC Rating 65kA @ 240VAC, 35kA @ 480Y/277VAC, 35kA @ 480VAC, 18kA @ 600Y/347VAC, 18kA @ 600VAC, 20kA @ 250VDC, 20kA @ 500VDC
Fit and installation
Frame Type HGA
Terminal Type Lugs
For Use With Square D I-Line Panelboards, Switchboards
Wire Gauge 14-3/0 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 Thermal, Fixed Magnetic
Standards and features
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
Approval CE, CSA, HACR, IEC, NOM, UL
Temp Rating -25C to 70C
Construction Features HACR Rated, 80% Rated

Product FAQs

7 answers
Which panelboards accept the HGA36040 circuit breaker?

This breaker is designed specifically for Square D I-Line panelboards and switchboards. It mounts directly to the I-Line bus stack and is not compatible with NQ, NF, QO, or standard load centers.

How are the line and load connections configured on this breaker?

The HGA36040 features a stab-on I-Line connection for the line side, which pushes directly onto the panel bus. The load side is equipped with mechanical lugs that accept 14 to 3/0 AWG aluminum or copper wire.

What are the required tightening torques for the load lugs?

For 14 to 10 AWG wire, the mechanical lugs should be torqued to 44 lb-in (5 N.m). For 8 to 3/0 AWG wire, torque the lugs to 124 lb-in (14 N.m).

What is the recommended wire stripping length for the load terminals?

Strip the wire insulation back 0.63 inches (16 mm) before inserting the conductor into the load side mechanical lugs.

What are the fixed magnetic hold and trip thresholds for this 40A breaker?

The factory-sealed thermal-magnetic trip unit has a fixed magnetic hold current of 400A and a magnetic tripping current of 850A.

Is the HGA36040 rated for continuous operation at 100% of its nameplate amperage?

No, this model carries a standard 80% continuous current rating. Continuous loads running for three hours or more should not exceed 32 amps.

What does the letter G signify in the HGA36040 catalog number?

In the Square D PowerPacT nomenclature, the G indicates the interrupting rating tier. This specific tier delivers a breaking capacity of 65kA at 240VAC, 35kA at 480VAC, and 18kA at 600VAC.

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Reviews

4.8
Rated 4.8 out of 5 stars
Based on 4 reviews
Total 5 star reviews: 3 Total 4 star reviews: 1 Total 3 star reviews: 0 Total 2 star reviews: 0 Total 1 star reviews: 0
Rating
Ratings
4 reviews
  • EC
    Elev8/ C.
    Flag of United States
    I recommend this product
    Rated 5 out of 5 stars
    11/22/21
    .

    .

  • BM
    Brian M.
    Flag of United States
    I recommend this product
    Rated 5 out of 5 stars
    2/20/19
    Great service

    Breaker new as promised, shipped on time and with a good price

  • RK
    Robert K.
    Flag of United States
    I recommend this product
    Rated 4 out of 5 stars
    12/20/18
    Always fast service.

    Always fast service.

  • HS
    Horacio S.
    Flag of United States
    I recommend this product
    Rated 5 out of 5 stars
    3/10/17
    Great Breaker

    The items arrived as promised. They are in good condition and look like exactly what we needed.