Comair Rotron Specification Sheet
Specification Date: October 18, 2006
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COMAIR ROTRON PART NUMBER: 040808
COMAIR ROTRON MODEL NUMBER: DD892848B1A2-E2 (ROHS Compliant)
A.) MOTOR:
RATED VOLTAGE: 48 Vdc
OPERATING VOLTAGE RANGE: 24 Vdc – 72 Vdc
LOW-START VOLTAGE: 24 Vdc
RUNNING CURRENT: 1.40 Amps
LOCKED ROTOR CURRENT: 2.00 Amps
RATED POWER: 67.2 Watts
NOMINAL SPEED: 2,700 RPM ± 200
(At Free Delivery)
START UP TIME: 10 Seconds Maximum
MOTOR TYPE: Brushless DC
MOTOR PROTECTION: By Integrated Circuit, Fuse
LOCKED ROTORT PROTECTION: Electronic
POLARITY PROTECTION: Yes
AUTOMATIC RESTART CAPABILITY: By Integrated Circuit
ROTATION: Clockwise when viewed from Inlet
B.) MECHANICAL
DIMENSIONS: 227mm Dia. x 65.3mm
(8.94” Dia. x 2.57”)
Figure 1
WEIGHT: 1.60 Kg (3.53 Lbs.)
BEARING TYPE: Ball Bearing, Permanently Lubricated,
Shielded
Comair Rotron Specification Sheet
Specification Date: October 18, 2006
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MOTOR BASE: Die Cast Aluminum
PROPELLER: Metal, plated, Chem Film Gold per
MIL-C-541 Class 1A
Figure 1
Comair Rotron Specification Sheet
Specification Date: October 18, 2006
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C.) ADDITIONAL FEATURES
TACHOMETER OUTPUT: 5Vdc TTL Compatible Output
I
C
= 5mA typical.
2 Pulses per Revolution
SPEED CONTROL: PWM Input
ENVIROSHIELD: Type 2 (meets Belcore GR-487)
D.) ENVIRONMENTAL
OPERATING TEMPERATURE: -40°C to +70°C
STORAGE TEMPERATURE: -50°C to +85° C, 65% ± 20% RH
HUMIDITY: 5% to 95% RH, non-condensing
VIBRATION: 3G’s (20 to 200 Hz)
SHOCK: 100G
peak, 10 msec, half sine wave
E.) PERFORMANCE CHARACTERISTICS
AIR FLOW: 500 CFM ± 10%
(At Free Delivery and 48Vdc)
STATIC PRESSURE: 2.220” Inches of H20
(At Shut-Off and 48Vdc)
ACOUSTIC LEVEL: 73 dBA
(Freely Suspended at 1 meter per
ANSI S12.11-1987 at 48Vdc)
Comair Rotron Specification Sheet
Specification Date: October 18, 2006
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F.) TERMINATION
LEADWIRES: 18.0 ± 0.50”
20 AWG, UL 1061 Style
(From the edge of the venturi to the tip
of the lead wires. )
COLOR DESIGNATION: Red – Power
Black – Return
Blue/White – Tachometer Output
Yellow – Program (PWM) Input
0.00
0.50
1.00
1.50
2.00
2.50
0 50 100 150 200 250 300 350 400 450 500
Airflow (CFM)
Static Pressure (Ps)
Comair Rotron Specification Sheet
Specification Date: October 18, 2006
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G.) RELIABILITY
This fan is designed for continuous duty life of XX,000 Hours at 40°C, (L10) . New digital motor; testing not
yet complete.
H.) SAFETY
I.) Flammability
The blower including all components meets an UL94V-0 rating or better.