Built for heavy-duty commercial distribution, this 700A device provides reliable long-time and instantaneous trip functions. The M-Frame construction includes a visual trip indicator to help facility managers quickly locate tripped circuits during outages. It mounts into compatible Square D I-Line panelboards and switchboards using standard plug-on jaw connections. For modern upgrades, this specific catalog number crosses over to the newer MJA36700 replacement model.
CSA C22.2 No. 5, HACR, IEC 60947-2, NEMA AB 1, UL 489
Approval
CSA, UL
Temp Rating
40C
Construction Features
HACR Rated, High Interrupting Capacity, Visual Trip Indicator
Product FAQs
6 answers
What panelboards and switchboards are compatible with the MH36700?
This breaker is designed exclusively for use in Square D I-Line panelboards and switchboards. It will not fit in standard load centers or non-I-Line distribution panels.
How does the I-Line mounting system work on this breaker?
The MH36700 features a plug-on jaw connection that mounts directly to the I-Line bus stack. This design utilizes a blow-on connection where magnetic forces during a short circuit cause the jaws to grip the bus bar tighter.
What wire sizes are accepted by the lugs on the MH36700?
The factory lugs accept three 3/0 AWG to 500 kcmil aluminum or copper conductors per phase.
How does the adjustable magnetic trip function on this breaker?
The MH36700 utilizes a thermal magnetic trip unit with a fixed thermal element for overload protection and an adjustable magnetic element. This allows you to fine-tune the instantaneous short-circuit trip threshold to suit your specific application.
What does the LI trip function code mean?
The LI designation indicates that the breaker provides Long-Time and Instantaneous protection. The Long-Time function protects against sustained overloads, while the Instantaneous function trips the breaker immediately during a short circuit.
Is there a modern replacement for the legacy MH36700?
Yes. For modern upgrades, the legacy MH36700 crosses over to the newer PowerPact M-frame MJA36700 replacement model.
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Reviews
Review summary
Customers rate this product 5.0 out of 5 based on 4 reviews.