Built to handle demanding electrical systems, the Square D BGA36070 is a 3-pole, 70A molded case circuit breaker. Belonging to the PowerPacT B-Frame lineup, it utilizes a thermal-magnetic trip mechanism to deliver precise LI protection. This breaker is designed for seamless integration into Square D I-Line panelboards and switchboards. It also functions as an exact substitute for discontinued FA36070 models, simplifying facility maintenance.
CSA C22.2 No. 5, EN/IEC 60947-2, EN/IEC 60947-5-1, GB 14048.2, NEMA AB 1, NMX J-266, UL 489
Approval
CCC, CE, CSA, EAC, IEC, NOM, UL
Temp Rating
-25C to 70C
Construction Features
HACR Rated, Current Limiting, Reverse Feed, Trip-Free Mechanism, Quick-Make/Quick-Break
Product FAQs
7 answers
What panelboards are compatible with the BGA36070?
The BGA36070 is designed exclusively for use with Square D I-Line panelboards and switchboards. Because it uses a specialized plug-on jaw, it cannot be installed in standard unit-mount enclosures or load centers like NQ, NF, QO, or Homeline.
Does this breaker come with lugs installed?
Yes, the BGA36070 comes standard with mechanical lugs pre-installed on the load side. The line side features the I-Line plug-on jaw that mounts directly to the panelboard bus, eliminating the need for line-side wiring.
Is the BGA36070 suitable for DC applications?
Yes, this thermal-magnetic breaker is rated for direct current (DC) use, providing an interrupting capacity of 20kA at 250VDC.
Are the long-time and instantaneous trip points field-adjustable?
No. The BGA36070 features fixed thermal (long-time) and fixed magnetic (instantaneous) trip settings. If your application requires adjustable trip curves, you will need a breaker equipped with an electronic trip unit.
What does the "G" in the BGA36070 catalog number represent?
In the Square D PowerPacT nomenclature, the "G" designates the breaker's interrupting rating tier. For the B-Frame family, a "G" rating provides a maximum interrupting capacity of 65kA at 240VAC and 35kA at 480VAC.
How does the BGA36070 differ from the BDA36070?
Both are 70A, 3-pole I-Line breakers within the PowerPacT B-Frame family. The difference is their interrupting rating: the BGA36070 offers a higher "G" tier rating (35kA at 480VAC), whereas the BDA36070 has a standard "D" tier rating (18kA at 480VAC).
Why is proper lug torque critical when wiring the BGA36070?
Applying the correct tightening torque to the load-side lugs is essential to prevent loose connections, which can lead to overheating, arcing, or thermal damage. Always use a calibrated torque wrench and follow the specific torque values printed on the breaker's faceplate, as the required torque varies depending on the exact wire size you use within the 14 to 2/0 AWG range.
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Reviews
Review summary
Customers rate this product 4.0 out of 5 based on 1 review.