HU368AWK, Safety switch, heavy duty, non fusible, 1200A, 3 pole, 500hp, 600VAC/DC, NEMA 12

Square D™ load center surge protective devices, SDSA1175FE, are easy to install plug-in units that install as quickly as a standard circuit breaker. The surge suppressors use two pole spaces in a QO™ or Homeline™ load center, or NQ panelboard. US and Canadian UL® Listed as Type 2 SPD to the UL 1449 standard. Complies with requirements of NEC® Article 285, CSA 233.1-87, and CSA C22.2 No. 8- M1986 as appropriate.