Siemens GCA – Spring return Electric Actuator

Siemens GCA…1E series is high quality, quarter turn / 90° turn fire and smoke electric actuator with spring return feature for fail-safe position. It is housed in IP54 protected metallic enclosure and comes with 2-aux. position switches, position indicator, adjustable mechanical limit stop.

Description

Siemens GCA – Spring Return Electric Actuator for Fire & Smoke Dampers

Electric actuator Siemens GCA series is rotary, robust, high performance spring return or fail-safe electric actuator for motorised operation of safety dampers, like fire dampers, fire smoke damper, smoke dampers.

When control signal is applied, actuator drives the damper to operational position, while evenly tensioning the integrated spring. Therefore, in case of power failure, like smoke or fire incidence, the store energy in the spring immediately bring the damper to the safety position. It is equipped with position indicator, adjustable mechanical limit stop, manual override facility.

Siemens GCA Product Nomenclature / Specifications
GCA Spring return electric actuator
X = 1, Power supply 24 V AC / DC
= 3, Power supply 230V AC
X 2 = 2-point position signals
3 = 3 point position signals
6 = modulating control signals input
X  1 = with aux. switches
6 = with 2 x aux switches
3 = adjustable modulating control signals input, without aux. switches
4 = adjustable modulating control signals input, with 2 x aux. switches
6 = non-adjustable modulating control signals input, with 2 x aux. switches
1 = non-adjustable modulating control signals input, without aux. switches

Features

Actuator Model GCA
Torque 18 Nm
Run time motor 90 sec
Run time Spring retun 15 sec
Supply 230 V AC, 50-60Hz
Power Consumption depending upon model
Control Signal 2-point, 3 – point, modulating
Angle of Rotation 90°
Ingress Protection IP 54
Enclosure Housing made from die-cast aluminum

Additional information

Model

GCA…1E

Make

Siemens

Type

Spring return