D4C-1202 Omron, D4C-1202 Datasheet - Page 25

• 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

Connections
• Do not connect a Single Limit Switch to two power supplies that are
Incorrect Power Connection Example
• Do not design a circuit where voltage is imposed between contacts,
• Do not use a circuit that will short-circuit if an error occurs, otherwise
• Application of Switch to a Low-voltage, Low-current Electronic
• In order to protect the Switch from damage due to short-circuits, be
20
different in polarity or type.
otherwise contact welding may result.
the charged part may melt and break off.
Circuit.
sure to connect a quick-response fuse with a breaking current 1.5 to
2 times larger than the rated current to the Switch in series. When
complying with EN approved ratings, use a 10-A IEC 60269-
compliant gI or gG fuse.
Power Connection Examples
(Connection of Different Polarities)
(Connection of Different Power Supplies)
There is a risk of AC and DC mixing.
1. If bouncing or chattering of the contacts results and causes
2. Conventional silver-plated contacts are not suited to this
3. The contacts of the Switch used for an emergency stop must
(a) Insert an integral circuit.
(b) Suppress the generation of pulse from the contact bouncing
problems, take the following countermeasures.
application. Use gold-plated contacts, which are ideal for
handling minute voltage or current loads.
be normally closed with a positive opening mechanism.
or chattering of the contacts so that it is less than the noise
margin of the load.
Connect the load to the same polarities.
Precautions for All Switches
Incorrect
Incorrect
Incorrect
Correct
Incorrect
AC
DC
L
NC
NO
NC
NO
NC
NO
NC
NO
L
L
NC
NO
L
100 V
200 V
Operating Environment
• Do not use the Switch by itself in atmospheres containing flammable
• Use protective covers to protect Switches that are not specified as
• The materials of Limit Switch may change in quality or deteriorate if
• Be sure to install the Switch so that the Switch is free from dust or
• Do not use the Switch in locations where the Switch is exposed to
• Do not use the Switch under temperatures or other environmental
• Be sure to protect the Switch with a cover if the Switch is in a
• Make sure to install the Switch in locations free of vibration, shock,
• Do not use the Switch with silver-plated contacts for long periods if
• Do not use the Switch in locations with corrosive gas, such as
In
or explosive gases. Arcs and heating resulting from switching may
cause fire or explosion.
waterproof or airtight whenever they are used in locations subject to
splattering or spraying oil or water, or to accumulation of dust or dirt.
the Limit Switch is used outdoors or any other location where the
Limit Switch is exposed to special machining oil. Consult your
OMRON representative before selecting the model.
metal powder. The actuator and the switch casing must be protected
from the accumulation of dust or metal powder.
hot water at a temperature greater than 60 C or steam.
conditions not within the specified ranges. The rated permissible
ambient temperature range varies with the model. Refer to the
specifications in this catalog.
If the Switch is exposed to radical temperature changes, the thermal
shock may deform the Switch and the Switch may malfunction.
location where the Switch may be actuated by mistake or where the
Switch is likely cause an accident.
or resonance. If vibration or shock is continuously imposed on the
Switch, contact failure, malfunction, or decrease in service life may
be caused by abrasive powder generated from the internal parts. If
excessive vibration or shock is imposed on the Switch, the contacts
may malfunction or become damaged.
the switching frequency of the Switch is comparatively low or the
load is minute. Otherwise, sulfuric film will be generated on the
contacts and contact failures may result. Use the Switch with gold-
plated contacts or use a dedicated Switch for minute loads instead.
sulfuric gas (H
or chlorine gas (Cl
contact failure or corrosion damage may result.
Incorrect
Incorrect
Incorrect
2
S or SO
2
ina
), or high temperature and humidity. Otherwise,
al box
2
), ammonium gas (NH
Correct
C
Correct
Terminal box
3
), nitric gas (HNO
Correct
Sepa a rate the
Sepa
Swit
Sw
fr
rom
m hot wate
arate the
ch
3
er.
),