Marantec Comfort ST 300 Swing Gate Motor Kit

The Marantec Comfort ST 300’s 80% duty cycle ties it with the KEY STAR 900 and LIFE Armor for the highest duty rating in the POWERgate Abu Dhabi range. At 80%, the motor can operate for 48 minutes of every hour without thermal overload at its nominal 85W and 3.5A. For an Abu Dhabi apartment entrance, compound gate, or shared-access property where the gate cycles frequently throughout the day, the ST 300’s 80% rating means it is never the limiting factor in gate access throughput — the gate is effectively available on demand at any reasonable residential or light commercial frequency.

Marantec categorises the Comfort ST 300 as suitable for both revolving door and swing gate applications. In gate automation, a revolving door operator refers to a motor designed for hinged pedestrian doors that swing on a vertical axis, sharing the same mechanical principles as swing gate motors. The ST 300’s slimline 3.2 kg housing and 85W power suit the lighter loading of revolving doors as well as small-to-medium residential swing gates. For Abu Dhabi properties where a single motor type is needed for both a driveway gate and a pedestrian entrance door, the ST 300 covers both applications.

Both the ST 300 and Marantec Comfort RA are Marantec 24V DC swing gate motors with UV-resistant materials and IP54 protection. The ST 300 is 3.2 kg/85W/1400N/2.5 cm/s/80% duty for gates up to 3.0m/400kg in a slimline compact housing. The Comfort RA steps up to 4.0m/600kg with up to 2000N and worm screw internal drive, available in encoder and non-encoder versions. The ST 300 is the lightweight high-frequency choice for standard Abu Dhabi villa gates; the Comfort RA is for larger gates or retrofit applications requiring internal drive protection.

The Marantec Comfort ST 300 kit includes two adjustable column angles — mounting brackets with angular adjustment for fixing the motor to gate pillars that are not perfectly perpendicular to the gate’s opening arc. This mirrors the same feature found in the Comfort RA, reflecting Marantec’s consistent approach to installation flexibility across its range. For Abu Dhabi concrete or masonry gate pillars where the face angle varies from the ideal, the adjustable brackets allow correct motor alignment without on-site bracket fabrication or shimming, ensuring the ST 300’s actuator operates squarely throughout its travel for even force delivery and long service life.

The Marantec Comfort ST 300 carries a 24-month manufacturer warranty. At 3.2 kg with 1400N force, the gate must move completely freely by hand before installation — stiff hinges on a 400kg gate will push the ST 300 beyond its force rating, causing repeated motor overloads that degrade the 85W motor quickly. The 2 x emergency release keys must be stored accessibly; the release is needed during power cuts. The IP54 rating provides good outdoor protection but the motor requires a sheltered position away from direct sustained water exposure. Contact POWERgate Abu Dhabi on WhatsApp (+971 50 884 4933) or sales@powergatead.com.