The BDA34080 Square D 3P 80A 480Y/277V circuit breaker is a reliable choice for protecting your electrical circuits. With a short-circuit interrupting rating of 18KA, it ensures optimal safety and performance in industrial applications. Designed for I-Line panels, this breaker offers exceptional durability and efficiency for your power distribution needs.
| Brand | Square D |
|---|---|
| Type | Standard (Thermal-Magnetic) |
| Amperage | 80 A |
| Poles | 3-Pole |
| Voltage | 480Y/277V |
| Interrupting Rating | 18 kA |
| Mounting | Plug-In |
| Frame / Series | BDA |
| Catalogue # | SQDBDA34080 |
The Square D BDA34080 is a 3-pole, 80A, 480Y/277V plug-in breaker in the BDA frame, designed exclusively for Square D I-Line panelboards and switchboards. It is not interchangeable with QO or Homeline residential loadcentres — I-Line is a commercial/industrial plug-in bus system used in Square D's NF, NQ, PQ, and I-Line distribution panelboards. With an 18kA interrupting rating at 480Y/277V, it is suited for branch and feeder protection in light industrial, commercial, and multi-storey building power distribution systems. Send us your panelboard model and we'll confirm this breaker is the right fit.
The BDA34080 is designed for Square D I-Line panelboards — commonly the NF, NQ, and PQ series, as well as other Square D I-Line distribution boards that accept plug-in style breakers on the I-Line bus. It is not compatible with QO or Homeline loadcentres. Send us your panelboard model number and we'll confirm compatibility before you order.
At 480Y/277V, the BDA34080 carries an 18kA short-circuit interrupting rating (SCIR). This is suitable for many commercial and light industrial branch and feeder applications, but you should verify your available fault current (AFC) at the point of installation. If your system's AFC exceeds 18kA, a higher-rated breaker will be required to meet Canadian Electrical Code (CEC) requirements.
Availability of the BDA frame series can vary — some variants have been superseded by newer Square D MCCB frames. Northern Breaker Group specializes in sourcing obsolete and hard-to-find breakers across Canada. Whether you need a new, reconditioned, or equivalent replacement unit, contact our Calgary, Edmonton, or Vancouver counter and we'll work to get you what you need.
