Structure and design - Basic Documentation - GMA121.1E - GMA126.1E - GMA131.1E - GMA136.1E - GMA161.1E - GMA161.1E/MO - GMA163.1E - GMA164.1E - GMA166.1E - GMA321.1E - GMA321.1E/SW - GMA326.1E

OpenAir™ GMA...1 actuators with spring return

Product Family
OpenAir
Product Group
Damper actuators
Content Language
English
Content Type
Technical Documentation > Basic Documentation
Product Version
Status
Valid
Date
2018-01-11
Document No
CM2Z4614en
Download ID
22970
Stock No.
BPZ:GMA121.1E
BPZ:GMA126.1E
BPZ:GMA131.1E
BPZ:GMA136.1E
BPZ:GMA161.1E
BPZ:GMA163.1E
BPZ:GMA164.1E
BPZ:GMA166.1E
BPZ:GMA321.1E
BPZ:GMA326.1E
S55499-D300
S55499-D512
Product No.
GMA121.1E
GMA126.1E
GMA131.1E
GMA136.1E
GMA161.1E
GMA161.1E/MO
GMA163.1E
GMA164.1E
GMA166.1E
GMA321.1E
GMA321.1E/SW
GMA326.1E
Access level
Internet
File Type
html

Description

The GMA...1 electronic actuators are available for two-position, three-position, modulating and networked control with spring return. The nominal torque is 7 Nm. The actuator's connection cables are prewired.

Housing

Robust, light-weight full metal housing from aluminum diecast. The housing guarantees a long actuator life even under harsh environmental conditions.

Gear train

Maintenance-free and noise-free gear train with stall and overload protection for the life of the actuator.

Spring preload

The spring preload of 5° ensures safe closure of the air dampers following correct mounting.

Manual adjustment

You can manually adjust the actuator using a hex wrench and lock it using a screwdriver.

Self-centering shaft adapter

This mounting type allows for fastening the actuator to shafts with various diameters and in various shapes (square, round) using just one screw.

Insert the shaft adapter from either side into the opening for the shaft adapter.

For short shafts, the shaft adapter is on the duct side.

The shaft adapter coupling and the adapter holding are coupled by means of double-sided gearing.

Mounting bracket

A bolted metal strip is used for attaching the actuator.

Electrical connection

All actuators have pre-wired, 0.9 m long (standard length) connection cables.

Type-specific elements

The actuators can be delivered as a type-specific variant having the following elements:

Auxiliary switch

For supplementary functions, the auxiliary switches A and B can be adjusted on either side.

Potentiometer for offset and span

Both potentiometers for the operating functions Uo and ΔU are accessible on either side.

Feedback potentiometer to position indication

The potentiometer is integrated and can be connected by means of a cable.

Push button and LED

at external Interface

The HMI of networked types consists of a push button and an LED to allow certain interactions with the actuator or to provide visible feedback from the actuator.