Siemens SSB81U (S55180-A150) Valve Actuator

Siemens SSB81U Valve Actuator, Powermite MZ Series actuator, 24 Vac, floating control, non-spring return. Works with MZ Series valves with 7/32-inch (5.5mm) stroke. UL listed for plenum installations, manual override with visual position indication. Provides 45 lb. (200 N) nominal force. Actuator Type: Electronic Actuation Style: Linear Fail Safe: No Control Signal: Floating Ambient temperature, operation: 41…122 ºF (5…50 °C) Ambient humidity, operation: 90 % r.h. Supply Voltage: 24 VAC Degree of protection: NEMA2 / IP54