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Belimo Modulating Damper Actuator, 20 Nm, 24V ac/dc

RS Stock No.:: 504-1309
Mfr. Part No.:: SM24A-SR
Brand:: Belimo

Belimo Modulating Damper Actuator, 20 Nm, 24V ac/dc

Subtotal (1 unit)*

£293.58

(exc. VAT)

£352.30

(inc. VAT)

FREE delivery for orders over £60.00

In Stock

41 unit(s) ready to ship
Plus 18 unit(s) ready to ship from another location
Plus 18 unit(s) shipping from 08 July 2026

Need more? Click ‘Check delivery dates’ to find extra stock and lead times.

Units	Per unit
1 +	£293.58

*price indicative

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RS Stock No.:: 504-1309
Mfr. Part No.:: SM24A-SR
Brand:: Belimo

Specifications

Technical Reference

Legislation and Compliance

Product Details

Find similar products by selecting one or more attributes.

Select all	Attribute	Value
	Brand	Belimo
	Product Type	Damper Actuator
	Maximum Damper Area	4m²
	Switch Included	Yes
	Power Consumption	2W
	Control Type	Modulating
	Supply Voltage	24V ac/dc
	Motor Torque	20Nm
	Noise Level	45dBA
	IP Rating	IP54
	Minimum Operating Temperature	-30°C
	Maximum Damper Spindle Size	20mm
	Angle of Rotation	95°
	Running Time	150s
	Minimum Damper Spindle Size	10mm
	Maximum Operating Temperature	50°C
	Standards/Approvals	No

	Select all
	Brand Belimo
	Product Type Damper Actuator
	Maximum Damper Area 4m²
	Switch Included Yes
	Power Consumption 2W
	Control Type Modulating
	Supply Voltage 24V ac/dc
	Motor Torque 20Nm
	Noise Level 45dBA
	IP Rating IP54
	Minimum Operating Temperature -30°C
	Maximum Damper Spindle Size 20mm
	Angle of Rotation 95°
	Running Time 150s
	Minimum Damper Spindle Size 10mm
	Maximum Operating Temperature 50°C
	Standards/Approvals No

COO (Country of Origin):: CH

Belimo Modulating Damper Actuator

The Belimo modulating damper actuator has an adjustable U-clamp, which accepts round or square shafts. It is a rotary/louver actuator. It is compatible with all the leading makes of HVAC controls. This actuator operates on stall torque technology, which does not require end switches. It requires 24VAC/VDC supply voltage.

Optional auxiliary switch (stock no. 504-1545) suitable for use with LM, NM, SM, and GM damper actuators, features 2xSPDT switches rated at 3 (0.5)A 250Vac and supplied with 1m of cable.

Features and Benefits

Operation life is minimum 60000

Pushbutton manual override

Direction change switch

Cable length is 1m

Ambient temperature ranges between -30°C and 50°C

Rated impulse voltage is 4kV

Maintenance-free

Low power consumption up to 2W

Maximum damper area is 4m²

Damper spindle compatibility ranges between 10mm and 20mm

Motor torque is 20Nm

Noise level is 45dB

Certifications

IP54 rated

NEMA2

UL Enclosure Type 2

IEC/EN 60730-1

IEC/EN 60730-2-14

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