Damper Actuator, Fast Acting, Fail Safe 53 lb-in, Switches
Fail Safe, 53 lb-in, 2-sec., 24Vac/dc, universal control signal (two-position, floating, 0-10Vdc/2-10Vdc, 4-20mA/0-20mA, Siemens proprietary FHC/LRC pulsed), shaft diameter is 1/4 to 3/4 in. round or 1/4 to 1/2 in square, switches
Technical Specifications
| Control or Fire/Smoke Type | Control Damper |
| Torque | 53 lb-in |
| Fail Safe | Yes |
| Positioning signal | 0 or 2 to 10 Vdc , 0 or 4 to 20 mA |
| Positioning time | Open:2 s, Close:2 s |
| Position feedback | Yes |
| Power consumption | Running: 20 VA / 13 W, Holding: 8 VA / 5 W |
| Ambient temperature, operation | -18…50 °C; 0…130 ºF |
| Ambient humidity, operation | 95 % r.h. |
| Operating voltage | 24 VAC/DC |
| Supply Voltage | 24 VAC/DC |
| Frequency | 50/60 Hz |
| Auxiliary switch | 2 |
| Cable length | 3 ft |
| Dimensions (W x H x D) | 3.25 x 8.38 x 2.38 in |
| Material, housing | NEMA 1, die-cast aluminum alloy enclosure, IP54 according to EN 60 529 |
| Degree of protection | IP54 |



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