D4C-1202 Omron, D4C-1202 Datasheet - Page 20

• Manufacturer Part Number: D4C-1202
• Description: SMALL LIMIT SWITCH
• Manufacturer: Omron
• Series: D4Cr

Specifications of D4C-1202

• Rohs Compliant: YES
• Circuit: SPDT
• Switch Function: On-Mom
• Contact Rating @ Voltage: 5A @ 250VAC
• Actuator Type: Roller Plunger
• Mounting Type: Chassis Mount
• Termination Style: Cable Leads
• Operating Force: 1177gf
• Actuator Style: Roller Plunger
• Operating Force Max: 11.77N
• Contact Voltage Ac Max: 250V
• Contact Voltage Dc Max: 30V
• Contact Current Ac Max: 5A
• Contact Current Dc Max: 4A
• Switch Terminals: Cable
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: D4C1202

Precautions
Refer to the “Precautions for General-purpose Limit Switches (Including Multiple Limit Switches, Mechanical Touch Switches, High-precision
Switches, Touch Switches, On-site Flexible Switches; Not Including Safety Switches)” on page 17.
Operating Environment
• Seal material may deteriorate if a Switch is used outdoor or where
• Install Switches where they will not be directly subject to cutting
• Constantly subjecting a Switch to vibration or shock can result in
• The Switches have physical contacts. Using them in environments
Handling
The bottom of the Switch at the cable outlet is resin-molded. Secure
the cable at a point 5 cm from the Switch bottom to prevent exertion
of excess force on the cable.
When bending the cable, provide a bending radius of 45 mm min. so
as not to damage the cable insulation or sheath. Excessive bending
may cause fire or leakage current.
Connections
Be sure to connect a fuse with a breaking current 1.5 to 2 times
larger than the rated current to the Limit Switch in series in order to
protect the Limit Switch from damage due to short-circuiting.
When using the Limit Switch for the EN ratings, use the gI or gG 10-
A fuse.
subject to special cutting oils, solvents, or chemicals. Always
appraise performance under actual application conditions and set
suitable maintenance and replacement periods.
chips, dust, or dirt. The Actuator and Switch must also be protected
from the accumulation of cutting chips or sludge.
wear, which can lead to contact interference with contacts, opera-
tion failure, reduced durability, and other problems. Excessive
vibration or shock can lead to false contact operation or damage.
Install Switches in locations not subject to shock and vibration and
in orientations that will not produce resonance.
containing silicon gas will result in the formation of silicon oxide
(SiO
tacts, contact interference can occur. If silicon oil, silicon filling
agents, silicon cables, or other silicon products are present near
the Switch, suppress arcing with contact protective circuits (surge
killers) or remove the source of silicon gas.
Secure
here
Not Suitable
Correct Use
2
) due to arc energy. If silicon oxide accumulates on the con-
5 cm
Suitable
Bending radius:
(R45 mm min.)
Operation
Operation method, shapes of cam and dog, operating frequency, and
overtravel have a significant effect on the service life and precision of
a Limit Switch. For this reason, the dog angle must be 30 max., the
surface roughness of the dog must be 6.3S min. and hardness must
be Hv400 to 500.
To allow the plunger-type actuator to travel properly, adjust the dog
and cam to the proper setting positions. The proper position is where
the plunger groove fits the bushing top.
To allow the roller lever-type actuator to travel properly, adjust the
dog and cam so that the arrow head is positioned between the two
convex markers as shown below.
Bushing top
Convex
markers
Enclosed Switch
Arrowhead
Not correct
Correct
Dog
Correct
Groove
Not correct
D4C
2.8 mm
179