Dwyer DDA13 is a non-spring return direct coupled actuator with a wide operating temperature range of -22 to 122°F (-30 to 50°C). It has a power requirement of 110 VAC, 24 VAC, ±10%, 50/60 Hz, single phase, with an optional 230 VAC for DDA and 24 VAC for DDC models. The enclosure material housing is NEMA 2 (IP40) and it has terminal block electrical connections. The power consumption is 5 VA for 110 VAC models, 5 VA for 230 VAC models, 3 VA for 24 VAC models, and 4 VA for DDC models. It comes with standard accessories including imitative baffles, baffle setscrews, actuator body setscrew, and an aluminum gasket. It fits shaft diameter of 0.4" (10 mm) or 0.5" (13 mm) and offers overload protection with a magnetic clutch. The angle of rotation is mechanically adjustable to 95° and the running time varies based on the model. It has a visual position indication, supports both clockwise (CW) and counterclockwise (CCW) rotation, and has a push-button manual override. The control input is two-position floating for DDA models and 4-20 mA or 0-10 VDC for DDC models. With a life expectancy of 60000 full cycles, it operates silently with a sound level of <45 dB.