Square D HDA36070 is a molded case circuit breaker designed for providing reliable overcurrent and short-circuit protection in three-phase industrial power distribution systems. It features a 70A current rating and a 600V AC voltage rating, housed within a compact H-frame construction measuring 163 mm H x 104 mm W x 86 mm D and weighing 5.481 lb. The breaker utilizes a thermal-magnetic trip unit for long-time and instantaneous (LI) protection, offers an interrupting capacity of 18kA at 480V, and is rated for operation from -25 to 70 °C. It complies with UL, CSA, NEMA, and IEC 60947-2 standards, ensuring suitability for panelboards and switchboards in commercial and industrial facilities. Its I-Line style plug-in connection with lug terminals accommodates conductors from 14 AWG to 3/0 AWG for both copper and aluminum.
Key Features & Specifications
Type: Molded Case Circuit Breaker, Thermal-Magnetic Trip (LI)
Voltage Rating: 600V AC
Current Rating: 70A
Frame Size: H
Poles: 3
Connection: I-Line Style Plug-In, Lug Terminal
AIC Rating: 18kA @ 480V AC
Wire Size Range: 14 AWG to 3/0 AWG (Cu/Al)
Operating Temperature: -25°C to 70°C (-13°F to 158°F)
Dimensions: 163 mm H x 104 mm W x 86 mm D (6.4 in x 4.09 in x 3.4 in)