Information

2726
EF1A Flameproof LED Illumination UnitsEF1A Flameproof LED Illumination Units
LED Optical Specifications
Illumination Surface Clear glass Translucent glass
Lens
With
(condensing
light)
Without
(diffused light)
With
(condensing
light)
Without
(diffused light)
Illumination Color White
Color Temperature
(typ.)
5,700K
Total Luminous Flux
(typ.)
960 lm
Reference Illumi-
nance (typ.)
(at 1.0m directly
below)
1100 lx 205 lx 450 lx 175 lx
TIIS Certified Products of the
Same Model
Part No. Lens
ON/OFF
switch
TIIS Type Test
Approval No.
EF1A-1
*
W
With
(condensing light)
Without TC19541
EF1A-1
*
WP
With
(condensing light)
With TC19542
EF1A-1
*
W1
Without
(diffused light)
Without TC19540
EF1A-1
*
W1P
Without
(diffused light)
With TC19543
•Same model range includes voltage, illumination surface glass,
cable gland type and size.
Illuminance Distribution at 1.0m (reference value)
Condensing Light (lx) Diffused Light (lx)
1000
500
200
50
20
10
3m
3m
10
10
10
10
200
150
100
50
20
3m
3m
400
200
100
50
20
10
3m
3m
10 10
10
10
3m
3m
150
100
50
20
Illumination Surface:
Clear glass (with lens)
Illumination Surface:
Clear glass (without lens)
Illumination Surface:
Translucent glass (with lens)
Illumination Surface:
Translucent glass (without lens)
3
58.2
154.2
9
70
284.2
310.2
Axis Center
Mounting Bracket
Illumination Surface
277
B∗
A∗
3
68
M4 Ground
Terminal
M4 Ground
Terminal
126.7
10°
68
117.4
W/Angle Adjustable
Mounting Bracket
W/Mounting Bracket
Dimensions
* See page 27 for the dimensions of A and B.
All dimensions in mm.
Illumination Distribution Chart (unit: cd/1000 lm)
Condensing Light Diffused Light
C
B
A
180
150
120
90
60
30
0
-30
-60
-90
-120
-150
50
100
150
200
250
300
0
180
150
120
90
60
30
0
-30
-60
-90
-120
-150
50
100
150
200
250
300
350
0
180
150
120
90
60
30
0
-30
-60
-90
-120
-150
100
200
300
400
500
600
700
0
Illumination Surface:
Clear glass (with lens)
Illumination Surface:
Clear glass (without lens)
Illumination Surface:
Translucent glass (with lens)
Illumination Surface:
Translucent glass (without lens)
180
150
120
90
60
30
0
-30
-60
-90
-120
-150
500
1000
1500
2000
0
A-A
A
C
B
B-B
C-C
3
58.2
154.2
284.2
310.2
9
70
277
B∗
A∗
3.0
55
104.0
99.4
Axis Center Mounting Bracket
Illumination Surface
M4 Ground
Terminal
M4 Ground
Terminal
53 to 60
E
øC
D
B=23
A/B: 53 to 60
With ON/OFF Switch: B only
52.5 to 59.5
ø26.5 (G1/2) ø31.5 (G3/4)
E
øC
D
B=23
A/B: 52.5 to 59.5
With Cable Gland: A or B Without Cable Gland: B only Dimensions (mm)
Cable
Gland
Code
Applicable Cable
Diameter X
Dimensions
Clamp
Water-
proof
C D E (
*
)
10 8 < X ≤ 10 42 40 G1/2 (16)
With
12 10 < X ≤ 12 42 40 G1/2 (16)
14 12 < X ≤ 14 42 40 G3/4 (22)
16 14 < X ≤ 16 42 40 G3/4 (22)
10W 8 < X ≤ 10 30 27 G1/2 (16)
Without
12W 10 < X ≤ 12 30 27 G1/2 (16)
14W 12 < X ≤ 14 33 30 G3/4 (22)
16W 14 < X ≤ 16 33 30 G3/4 (22)
*
: Nominal size
3
58.2
154.2
277
B
∗
A
∗
37.5
82
150
57
4-M6 Effective thread: 9
Axis Center
Illumination Surface
M4 Ground Terminal
M4 Ground Terminal
Mounting Hole Layout
289
±4
70
±0.2
4-ø8.2
57
±0.3
150
±0.4
4-ø6.2
Direct Mounting
Direct Mounting
With Mounting Bracket
All dimensions in mm.
Safety Precautions
•Do not disassemble, repair, or modify the LED illumination unit.
Otherwise electric shock, fire, or malfunction may occur.
•Special expertise is required to install, operate, maintain, and
inspect the EF1A. People without such expertise must not use the
EF1A. Otherwise electric shocks, damage, or malfunction may
result.
•Read this catalog and instruction sheet carefully before using the
EF1A.
Installation Area
1. Degree of protection for the EF1A is IP67 (with ON/OFF switch:
IP65). Do not use in harsher environment.
2. Operating temperature is –20 to +50°C. When the surface
temperature of EF1A might exceed +50°C due to direct sunlight,
provide a shade to keep the surface temperature below +50°C.
3. When installing the EF1A, observe safety standards and
regulations of the relevant country or region.
Installation
1. For direct mounting without mounting bracket, use four M6 bolts.
When using mounting brackets, use four M8 bolts or install firmly
so that equivalent mounting strength is provided. Mounting
bracket is 3 mm thick (see dimensions). Recommended
tightening strength is as follows. M6: 3.9 to 5.4 N·m, M8: 10 to
13.5 N·m.
2. If bolt loosening is expected due to vibrations, use spring
washers.
Installing/Removing the End Cover
1. When removing the end cover, use a hex key supplied with the
EF1A to remove the end cover bolts (M6 × 18 hex socket head
cap bolt with spring washer and plain washer). Do not lose the
end cover bolts.
2. The end cover is inserted into the housing. When installing the
end cover, make sure that the end cover is inserted straight.
3. When installing the end cover, observe the followings.
· No foreign objects are on the gasket or joint surface.
· The gasket is in place.
· The wires are not caught between the joint surfaces.
Install the end cover slowly and tighten screws to a torque of 3.9
to 5.4 N·m.
Note: Make sure that the bolts are tightened securely.
Drawing a Cable
•Use the flameproof packing type cable gland supplied with the
EF1A. Refer to the dimensions. See “Connecting a Cable to the
Flameproof Packing Type Cable Gland” for details.
•When choosing a cable, take maximum operating temperature
and chemical resistance of insulator and sheath into consider-
ation. The inside of cable must be as solid as possible to pre-
vent ingress of explosive gas through the cable, and smooth on
surface and round in cross-section. When choosing the size and
insulation material, take the temperature rise of cable into consid-
eration.
•Protect the cable against external damage by encasing in a metal
conduit, or in a metal/cement duct.
Instructions
* See below for the dimensions of A and B.
(13/02/15) (13/02/15)