Overview
Reversing, proportional motors used to drive burner firing rate valves, dampers or auxiliary equipment. Replace M941A,C,D motors.
Features
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Designed for flame safeguard applications in commercial/industrial oil or gas burner system.
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Vibration resistant electronic drive circuit.
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Regulated by three-wire proportional controller.
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Stroke is field-adjustable to 90 or 160 degrees.
Product Specifications
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Dimensions (in.)
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6.45 in high x 5.5 in wide x 7.3 in deep
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Dimensions (mm)
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164 mm high x 140 mm wide x 185 mm deep
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Frequency
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50 Hz; 60 Hz
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Approvals, Underwriters Laboratories Inc.
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Listed: File No. E4436, Guide No. XAPX for USA and Canada
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Supply Voltage
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24 Vac
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Power Consumption
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15 W
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Timing
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90 degree stroke-- 60 seconds, 160 degree stroke-- 120 seconds
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Ambient Temperature Range (F)
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-40 F to +150 F
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Ambient Temperature Range (C)
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-40 C to +66 C
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Switch Ratings
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At 120 Vac-- 7.2 AFL, 43.2 ALR, 40 VA pilot duty opposite contact; At 240 Vac-- 3.6 AFL, 21.6 ALR, 40 VA pilot duty opposite contact
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Input Signal
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135 ohm
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Stroke
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Adjustable; 90 to 160 degrees, Symmetrical
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Shaft Dimensions (in.)
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double-ended, 3/8 in. square
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Torque Rating (lb-in.)
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300 lb-in.
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Torque Rating (Nm)
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34 Nm
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Additional Torque Ratings (lb-in.)
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Breakaway-- 600 lb-in.
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Additional Torque Ratings (Nm)
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Breakaway-- 68.0 Nm
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Factory Stroke Setting
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90 degrees
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Shaft Dimensions (mm)
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double-ended, 9.5 mm square
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Deadweight Load on Shaft
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Either End-- 200 lb (300 lb combined power and auxiliary shafts); 90.8 kg (136 kg combined power and auxiliary shafts);
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Selection guide:
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300 lb-in, NSR, Proportional Flame Safeguard Firing Rate Motor, 24V
M9494F1003/U
300 lb-in, NSR, Proportional Flame Safeguard Firing Rate, 2 Aux. Switches, 24V
