G-256
Safety Sensors / Components
Precautions
If the D4B-
#
N is applied to a safety category circuit for prevention of
injury, use the D4B-
#
N model that has an NC contact equipped with
a direct opening mechanism, and make sure that the D4B-
#
N oper-
ates in the direct opening mode. Furthermore, secure the D4B-
#
N
with screws or equivalent parts that are tightened in a single direc-
tion so that the D4B-
#
N cannot be easily removed. Then provide a
protection cover for the D4B-
#
N and post a warning label near the
D4B-
#
N.
In order to protect the D4B-
#
N from damage due to short-circuiting,
connect a fuse breaking a current 1.5 to 2 times higher than the
rated current in parallel with the D4B-
#
N.
If an application satisfying EN standards is to employ the D4BL,
apply the 10-A gI or gG fuse approved by IEC269.
Do not apply the D4B-
#
N to the door without applying a stopper to
the door.
If the D4B-
#
N is used with the actuator normally pressed, the
D4B-
#
N may malfunction or may soon have reset failures. Be sure to
check and replace the D4B-
#
N regularly.
Correct Use
Operating Environment
The D4B-
#
N is for indoor use. The D4B-
#
N may malfunction if the
D4B-
#
N is used outdoors. Be sure to use a model with a lever-type
actuator for outdoor use instead.
Do not use the D4B-
#
N in the following locations:
•
Locations subject to severe temperature changes
•
Locations subject to high temperatures or condensation
•
Locations subject to severe vibration
•
Locations where the product may come in contact with metal dust,
oil, or chemicals
Tightening Torque
Note: Apply a tightening torque of 0.78 to 0.88 N·m to conduit models.
Mounting
Use four M5 screws with washers to mount the standard model. Be
sure to apply the proper torque to tighten each screw. The D4B-
#
N
can be mounted more securely by using the four screws plus two
5
–0.05
/
–0.15
-mm protruding parts, each of which has a maximum
height of 4.8 mm as shown below.
Mounting Dimensions (M5)
Changes in Actuator Mounting Position
To change the angle of the lever, loosen the Allen-head bolts on the
side of the lever.
The operating position indicator plate has protruding parts which
engage with the lever, thus allowing changes to the lever position by
90°.
The back of the operating position indicator plate has no protruding
parts. The lever can be set at any angle by attaching the operating
position indicator plate to the Switch so that this side will face the
lever. In this case, however, the D4B-
#
N will not be approved by
SUVA or BIA. Make sure that the lever engages with the operating
position indicator plate securely so that the lever will not slip.
Changes in Head Mounting Position
By removing the screws on the four corners of the head, the head
can be reset in any of four directions. Make sure that no foreign
materials will penetrate through the head.
Type
Torque
1 M3.5 terminal screw
0.59 to 0.78 N·m
2
Cover-mounting screw
(see note)
1.18 to 1.37 N·m
3 Head mounting screw
0.78 to 0.98 N·m
4 M5 body mounting screw
4.90 to 5.88 N·m
5 Connector
1.77 to 2.16 N·m
6
Cap screw
(for three-conduit models)
1.27 to 1.67 N·m
(3)
(4)
(1)
(5)
(2)
Be sure to tighten each
screw of the D4B-
#
N
properly, otherwise the
D4B-
#
N may malfunction.
30
60
59.3
±
0.1
30
40
42
27
±
0.1
5
-
0.05
dia. holes, max. 5 height
-
0.15
Standard Model
3-conduit Model
Protruding portions
F502-EN2-04.book Seite 256 Dienstag, 26. Juli 2005 5:48 17
