Self Priming Dry: 19
PRM 4 Inch Compound Gauge
This unique design provides a sensor which will operate for extended periods without calibration or maintenance
Body: Acrylic plastic
Square D SDSA4040D Surge protection device, Surgelogic, 40kA, 480 VAC delta, 3 phase, 3 wire, NEMA 4X NPT Self Priming Dry: 19Square D SDSA4040D Surge protection device, Surgelogic, 40kA, 480 VAC delta, 3 phase, 3 wire, NEMA 4X Square D load center surge protective devices, SDSA4040D, 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,