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Precautions
CAUTION
!
Do not use metal connectors or conduits with this Switch. Rigid
connectors and conduits may damage the Switch. The broken
conduit hole may cause electrical shock hazard.
J NOTICE
If the D4DH is applied to an emergency stop circuit or safety
circuit for prevention of injury, use the NC contact, which
incorporates a force-separation mechanism, and make sure that
the D4DH operates in positive mode. Furthermore, secure the
D4DH with screws or equivalent parts that are tightened in a
single direction so that the D4DH or operation key cannot be
easily removed or provide a protection cover to the D4DH and
post a warning label near the D4DH.
Protect the D4DH with an appropriate cover and post a warning
sign near the D4DH for safety reasons so that the D4DH will not
be removed carelessly.
To protect the D4DH from damage due to short-circuits, connect
the D4DH in series to a fuse that has a breaking current 1.5 to 2
times the rated current of the D4DH. If the D4DH is used under
EN-approved rating conditions, use a 10-A fuse, type gI or gG
conforming to IEC 269.
Do not touch the live switch terminal. Electric shock hazard may
be caused.
Do not use the D4DH in locations subject to corrosive or
flammable gases.
Make sure that the load current does not exceed the rated
current and that the load terminals are wired correctly.
Pay utmost attention to correctly wire each terminal.
Be sure to evaluate the Switch under actual working conditions
after installation.
Do not use the Switch as a stopper.
Do not drop or disassemble the D4DH.
Life Expectancy
The life of the D4DH will vary with the switching conditions.
Before applying the D4DH, test the D4DH under actual operating
conditions and be sure to use the D4DH in actual operation
within switching times that will not lower the performance of the
D4DH.
J CORRECT USE
Operating Environment
The D4DH is for indoor use only. Do not use the D4DH outdoors.
Otherwise, the D4DH may malfunction. Be sure that no metal
dust, oil, or chemical will be sprayed onto the D4DH, or the
D4DH may malfunction.
Do Not Use the D4DH in the Following Locations
Locations with severe changes in temperature
•
Locations with excessive humidity that may cause
•
condensation
Locations with excessive vibration
•
Locations where metal dust, oil, or chemical may be sprayed
•
onto the D4DH
J MOUNTING
Tightening Torque
Be sure to tighten each screw of the D4DH properly, or the D4DH
may malfunction.
(5)
(4)
(1)
(7)
(2)
No.
Type
Torque
(1)
Terminal screw
0.59 to 0.78 N S m
(M3.5)
(2)
Cover
0.78 to 0.88 N S m
mounting
screw
(3)
Head mounting
0.78 to 0.88 N S m
screw
(4)
Body mounting
0.49 to 0.69 N S m
screw (M4)
(See note 1)
(5)
Arm lever
1.57 to 1.77 N S m
mounting
screw
(M5 x 0.8)
(6)
Connector at
1.77 to 2.16 N S m
conduit
conduit
1.37 to 1.77 N S m (see note 2)
opening
(7)
Cap screw
1.27 to 1.67 N S m
(see note 3)
Note: 1. Tighten each screw together with a washer to the spe-
cified torque.
2. This torque range applies to
3. For 2-conduit models only.
Switch and Mounting
Be sure the that D4DH operates properly after mounting and
adjusting the D4DH.
Use two M4 screws (one-way screws, etc.) and washers to
mount the D4DH securely. The D4DH can be mounted more se-
curely with two protruding portions inserted into the lower part of
the D4DH as shown below. Each protruding portion is 4
in diameter with a maximum height of 4.8 mm.
9
D4DH
(3)
(6)
1
/
-14NPT connectors.
2
--0.05
mm
--0.15
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