Schneider Electric AG14A000 : Erie PopTop Spring Return Actuator, 24 VAC, On/Off, Normally Closed, Power (Open or Close): 9 to 11 Seconds, Spring Return (Open or Close): 4 to 5 Seconds, 32 to 250°F (Fluid) @ 169°F (Ambient) (0 to 121°C @76°C), NEMA 1 Enclosure