The BDA140505 Square D 1P 50A 480V Circuit Breaker is designed for reliable protection and performance in industrial applications. This single-pole breaker offers a 50 amp capacity, ensuring safe power distribution for your electrical systems. Ideal for high-demand environments, it guarantees optimal protection against overloads and short circuits.
| Brand | Square D |
|---|---|
| Type | Standard (Thermal-Magnetic) |
| Amperage | 50 A |
| Poles | 1-Pole |
| Voltage | 480V |
| Interrupting Rating | 18 kA |
| Mounting | Plug-In |
| Frame / Series | BDA |
| Catalogue # | SQDBDA140505 |
The BDA140505 is a Square D BDA-frame plug-in molded-case circuit breaker rated 1-pole, 50A, 480V, 18kA AIC. As an industrial-grade MCCB, it is designed to mount in compatible Square D NF, I-Line, and other BDA-series panelboards and switchboards — not in residential loadcentres. Verify bus-bar spacing, interrupt-rating requirements, and enclosure type before installation. Send us your panelboard model and we'll confirm fitment.
The BDA140505 is an industrial plug-in molded-case breaker designed for Square D BDA-frame compatible panelboards and switchboards operating at up to 480V. It is not suitable for residential loadcentres. Contact us with your panelboard model number and we'll confirm whether this breaker is the correct fit.
The Square D BDA-frame series is considered obsolete or hard-to-find through standard distribution channels. Northern Breaker Group specializes in sourcing exactly these types of breakers — reach out to our Calgary, Edmonton, or Vancouver counters for current stock and availability.
The 18kA AIC (Ampere Interrupting Capacity) rating means the BDA140505 can safely interrupt fault currents up to 18,000 amperes at 480V. You must ensure the available fault current at the point of installation does not exceed this rating. If your system's short-circuit current is higher, a breaker with a greater AIC rating will be required to meet code.
