Square D BDA36070 PowerPact BD Circuit Breaker

The Square D BDA36070 PowerPact BD circuit breaker is a 70‑amp, three‑pole molded‑case device from the PowerPact BD family (B‑Frame) designed for I‑Line mounting in three‑phase distribution panels. It is rated for 600Y/347 VAC service and provides a 14 kAIC interrupt rating at that voltage, delivering fast fault interruption to protect feeders and downstream equipment. This 3P unit employs a non‑interchangeable trip mechanism with long‑time and instantaneous trip functions, and uses a thermal‑magnetic design to provide reliable protection. The BD frame geometry is designed to fit standard PowerPact BD enclosures and compatible I‑Line bus assemblies, making it a drop‑in replacement for similarly specified breakers in compatible panels. The BDA36070 designation identifies the model as a 70 A, 3‑pole device within Square D’s PowerPact line, suitable for installations requiring reliable 600Y/347 VAC protection with a robust interrupt capacity.