Square D - BDA36050 3-Pole 50A Thermal Magnetic Circuit Breaker — PowerPacT B, I-Line, Non-Interchangeable Trip
Square D - BDA36050 3-Pole 50A Thermal Magnetic Circuit Breaker — PowerPacT B, I-Line, Non-Interchangeable Trip
Product images are representative only. Actual product may vary.
The Schneider Electric BDA36050 is a 3-pole, 50A PowerPacT B-Frame molded case circuit breaker built for reliable overload and short-circuit protection in commercial and industrial power distribution systems. It features a non-interchangeable thermal magnetic trip unit with Long-Time and Instantaneous (LI) protection functions, dual-break rotating contacts to reduce peak current during short-circuit events, and an I-Line style plug-in mounting design with ABC phase connection for fast installation into compatible panelboards. The load side terminates in mechanical lugs, and the breaker includes an integral push-to-trip button for manual testing. Rated 600Y/347VAC and UL 489 listed, the BDA36050 is a direct fit replacement or new-install option for facilities standardizing on Square D PowerPacT B distribution equipment.
Specifications
| Manufacturer | Square D / Schneider Electric |
| Series | PowerPacT B-Frame |
| Part Number | BDA36050 |
| Number of Poles | 3-Pole |
| Amperage Rating | 50A |
| Voltage Rating | 600Y/347 VAC |
| Interrupting Rating (AIC) | 25kA @ 240VAC | 18kA @ 480VAC | 14kA @ 600Y/347VAC | 10kA @ 250VDC |
| Trip Type | Thermal Magnetic, Non-Interchangeable, LI (Long-Time + Instantaneous) |
| Continuous Current Rating | 80% Rated |
| Fixed Magnetic Trip | Hold: 480A / Trip: 720A |
| Mounting Type | I-Line Plug-In, ABC Phase Connection |
| Terminal Type | Line (ON end): I-Line / Load (OFF end): Mechanical Lugs |
| Wire Range | AWG 14 – AWG 2/0, Aluminum/Copper |
| Mechanical Life | 20,000 cycles |
| Electrical Life | 10,000 cycles @ 440V |
| Standards / Approvals | UL 489 Listed, CSA Certified, IEC Rated, NOM, CCC |
| Dimensions (H x W x D) | 137mm x 81mm x 89mm (5.39" x 3.19" x 3.5") |
| Weight | 1.315 kg (2.9 lbs) |
Frequently Asked Questions
What does "non-interchangeable trip" mean on the BDA36050?
It means the thermal magnetic trip unit is factory-set and permanently fixed to the breaker frame — it cannot be swapped for a different trip rating like interchangeable-trip breakers allow. This makes it a fixed 50A trip breaker.
What panels is the BDA36050 compatible with?
The BDA36050 uses I-Line style plug-in mounting with ABC phase connection, designed for Square D I-Line panelboards and switchboards rated for PowerPacT B-Frame breakers.
What is the interrupting (AIC) rating of this breaker?
It's rated 14kA at 600Y/347VAC, 18kA at 480VAC, 25kA at 240VAC, and 10kA at 250VDC, per UL 489.
Is the BDA36050 UL listed?
Yes. It's UL 489 Listed and also CSA Certified and IEC Rated for use in commercial and industrial distribution equipment.
What size wire does the BDA36050 accept?
The load-side mechanical lugs accept AWG 14 through AWG 2/0 aluminum or copper conductors.
Can I test the BDA36050 without removing it from the panel?
Yes, it includes an integral push-to-trip button for manual trip testing without de-energizing or removing the breaker.