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Square D QDL32070 Molded Case Circuit Breaker

  • 70A
  • 3 Pole
  • Unit Mount
Square D QDL32070
Molded Case Circuit Breaker
Brand Square D
SKU QDL32070
Select Item Condition
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  • 70A
  • 3 Pole
  • Unit Mount

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Square D QDL32070 - 70A 3 Pole Molded Case Circuit Breaker

Square D QDL32070 - 70A 3 Pole Molded Case Circuit Breaker

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$1,174.50 In Stock

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Description

Part of the PowerPacT Q-Frame family, this 70A MCCB is built for commercial environments. The QDL prefix denotes a 25kA interrupting capacity at 240VAC with factory lugs. The unit-mount configuration installs into Square D NQ panelboards and individual enclosures. It serves as a functional replacement for legacy Q2L3070 breakers. Thermal-magnetic technology provides precise long-time and instantaneous (LI) protection. The HACR-rated mechanism accepts 4 AWG to 300 kcmil wiring.

Specifications

Key specifications
Brand Square D
Part Number QDL32070
Series QDL
Amperage 70A
Poles 3
Mounting Style Unit Mount
Voltage 208Y/120VAC, 240VAC
Phase 3
AIC Rating 25kA @ 208Y/120VAC, 25kA @ 240VAC
Fit and installation
Frame Type QDL
Terminal Type Lugs
For Use With Square D NQ Panelboards, Square D Switchboards, Square D Individual Enclosures
Wire Gauge 4 AWG - 300 kcmil (Al/Cu)
Max Wire 300 kcmil
Min Wire 4 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 Padlock Attachment
Accessories Line and Load Lugs Included
Standards CSA C22.2 No 5, HACR, IEC 60947-2, NEMA AB 1, NOM-003-SCFI-2000, UL 489
Approval CSA, IEC, NOM, UL
Temp Rating -25C to 70C
Construction Features HACR Rated, 80% Rated, Non-Interchangeable Trip, Reverse Feed, Mercury Free, PVC Free

Product FAQs

6 answers
Which panelboards are compatible with the QDL32070 circuit breaker?

This unit-mount breaker is designed for use in Square D NQ panelboards, switchboards, and individual enclosures. It features a feed-thru connection and is not compatible with I-Line panelboards.

What wire sizes and torque specifications are required for the QDL32070 lugs?

The factory-installed lugs accept 4 AWG to 300 kcmil aluminum or copper wire. The required tightening torque for these connections is 248 lb-in (28 N.m).

What is the difference between Square D QDL, QGL, and QJL circuit breakers?

The difference is the interrupting rating (AIC). The QDL32070 has a 25kAIC rating at 240V. The QGL series offers 65kAIC, and the QJL series provides 100kAIC for applications requiring higher fault current protection.

What does the LI trip function mean on this PowerPacT Q-Frame breaker?

The LI designation indicates that the thermal-magnetic trip unit provides Long-Time (L) overload protection and Instantaneous (I) short-circuit protection. Both the thermal and magnetic trip settings are fixed on this model.

Does the QDL32070 provide ground fault or arc fault protection?

No. This is a standard thermal-magnetic circuit breaker designed for overcurrent and short-circuit protection. It does not include integrated ground fault (GFCI) or arc fault (AFCI) capabilities.

Can the QDL32070 be used on a 480V electrical system?

No. This Q-Frame circuit breaker has a maximum voltage rating of 240VAC and cannot be safely installed on 480V or 600V systems.

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Reviews

5.0
Rated 5.0 out of 5 stars
Based on 3 reviews
Total 5 star reviews: 3 Total 4 star reviews: 0 Total 3 star reviews: 0 Total 2 star reviews: 0 Total 1 star reviews: 0
Rating
Ratings
3 reviews
  • PM
    Patrick M.
    Verified Buyer
    Reviewing
    Square D QDL32150 - 150A 3 Pole Molded Case Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    7/28/26
    Replacement breaker for a main panel

    The breaker worked exactly as it was supposed to. We installed it and are having no issues with it. These guys are top notch.

  • RF
    Ron F.
    Verified Buyer
    Reviewing
    Square D QDL32175 - 175A 3 Pole Molded Case Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    4/27/26
    Enclosed Breaker

    As usual Super Breakers delivered on Price and a prompt delivery time, The right part for the right price everytime.

  • KN
    Karl N.
    Flag of United States
    Reviewing
    Square D QDL32150 - 150A 3 Pole Molded Case Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    5/17/19
    Breaker, breaker, 10four

    Helpful Rep. Goods delivered No delays Don't lose this number