Dwyer ACT-DA11 is a versatile pneumatic and electric actuator suitable for temperature ranges of -40 to 140°F (-40 to 60°C). It can be powered by 110 VAC, 220 VAC, 24 VAC, or 24 VDC and is designed for hazardous environments. The enclosure has a NEMA 7 rating and meets Class I, Group C & D; Class II, Group E, F & G; Division I & II standards. It offers 1/2" female NPT electrical connections, position indicator, two limit switches, and NAMUR standard accessory mounting. The double-acting DA series has a supply pressure range of 40 to 115 psi, while the spring return SR series has a supply pressure of 80 psi. Suitable for modulating input of 4 to 20 mA, it has a powder-coated aluminum construction and comes in various connection sizes.