R87T-A4A15HP Omron, R87T-A4A15HP Datasheet - Page 11

• Manufacturer Part Number: R87T-A4A15HP
• Description: TUBE AXIAL FAN
• Manufacturer: Omron
• Series: R87Tr
• Type: AC Fanr

Specifications of R87T-A4A15HP

• Fan Type: Tubeaxial
• Size / Dimension: Square - 120mm L x 120mm H x 38mm W
• Voltage Rating: 200VAC
• Power (watts): 18W
• Rpm: 3100 RPM
• Noise: 46 dB
• Static Pressure: 0.236 in H2O (58.8 Pa)
• Air Flow: 106.0 CFM (3.00m³/min)
• Termination: 2 Terminals
• Bearing Type: Ball
• Weight: 1.3 lbs (589.7g)
• Termination Style: 46 dB
• Bearings: Ball
• Noise Level: 42/46dB
• Housing Material: Aluminum Die Cast
• Power Rating: 20/18W
• Product Length (mm): 120mm
• Product Height (mm): 38mm
• Product Depth (mm): 120mm
• Line Current: 0.13/0.11A
• Operating Temp Range: -30C to 70C
• Fan Rotation: Clockwise
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: R87TA4A15HP

■ Precautions for Correct Use
Leakage Flux
• Leakage flux from an Axial-flow Fan may distort the image on
Inlet
Outlet
R87T and Other AC Axial-flow Fans
nearby CRT screens. Measures to prevent this problem include:
1. Keeping CRTs at least 30 cm away from the Axial-flow Fan
2. Shielding the Axial-flow Fan side with metal mesh.
The leakage flux from a Fan with metal blades is less than with
plastic blades. The leakage flux distribution curves are shown
below as examples.
Dimensions
Leakage
flux
distribution
Dimensions
Leakage
flux
distribution
A B C D E F
A B C D E F G H I J K L M
4
3
2
1
0
4
3
2
1
0
A B C D E F G H I J K L M
A B C D E F G H I J K L M
Leakage flux = 0
G
H I J K L M
Measurement point
Measurement point
Noise Countermeasures
• The cooling effect and noise levels of Axial-flow Fans are greatly
• Maintain as much clearance as
• The diameter of the Fan
Cooling Effect
• Avoid rapid changes in air flow
• When installing the Fan, keep
Axial-flow Fan Installation
• The Fan can be mounted with bolts through only one flange (single-
affected by the mounting conditions. Take the points listed below
into account when installing the Fans.
possible between the Fan inlet
and the cooled object. (If the
cooled object occupies about
the same surface area as the
Fan on a flat surface, a
distance of approximately
10 cm is appropriate.)
installation hole (D2) should be
larger than the diameter of the
Fan (D1).
D
D
D
direction or air-flow cross-
section which reduce the
cooling effect.
the clearance at the outlet side
as small as possible. (If there is
a large clearance at the outlet
side, it may not be possible to
obtain a sufficient cooling
effect.)
flange mounting) or with through-bolts through both flanges
(double-flange mounting). Take care not to distort the frame when
using double-flange mounting.
Tighten the bolts to a torque of approximately 0.44 N·m when
installing the Fan.
1
2
1
: Fan installation hole
: Fan diameter
> D
diameter
Single-flange mounting
2
Safety Precautions for All Axial-flow Fans
Double-flange mounting
Fan
Fan
Fan
Fan
Distance
L (ideally zero (0))
Panel
Panel
Panel
Cooled object
D
2
D
1
9