Datasheet
MY/MYK/MYQ·MYH
55
MY
MYQ
·
MYH
MYK
Common Options (Order Separately)
Common Precautions
Safety Precautions
Relays
Be sure to read the Safety Precautions for All Relays in the website at the following URL:
http://www.ia.omron.com/product/cautions/36/safety_precautions.html
Warning Indications
Meaning of Product Safety Symbols
Do not touch terminal sections (i.e., current-carrying parts)
while power is being supplied.
Also, always mount the terminal cover.
Touching current-carrying parts may result in electric shock.
Do not touch the main unit while power is being
supplied or immediately after the power supply has
been turned OFF. The main unit will be extremely hot
and may result in burns.
●Handling
For models with a built-in operation indicator, models with a built-in
diode, or high-sensitivity models, check the coil polarity when wiring
and wire all connections correctly (DC operation).
●Installation
• There is no specifically required installation orientation, but make sure
that the Relays are installed so that the contacts are not subjected to
vibration or shock in their movement direction.
• Use two M3 screws to mount the case-surface mounting (MY
@
F) and
tighten them securely. (Appropriate tightening torque: 0.98 N·m)
●Relay Replacement
To replace the Relay, turn OFF the power supply to the load and
Relay coil sides to prevent unintended operation and possible
electrical shock.
●Applicable Sockets
Use only combinations of OMRON Relays and Sockets.
●
Attaching and Removing Relay Hold-down Clips
When you attach a Hold-down Clip to or remove it from a Socket,
wear gloves or take other measures to prevent injuring your fingers
on the Hold-down Clip.
●Compliance with Electrical Appliances and
Material Safety Act
• MY standard models comply with the Electrical Appliances and
Material Safety Act.
• Always protect any exposed terminals (including Socket terminals)
after wiring with insulation tubes or resin coating on PCBs.
*Under the Electrical Appliances and Material Safety Act, do not use the Type
4 model with a voltage that exceeds 150 VAC. However, this restriction can be
ignored if compliance with the Electrical Appliances and Material Safety Act is
not required.
●Miniature Power Relays: MY
Latching Levers
• Turn OFF the power supply when operating the latching lever.
After you use the latching lever always return it to its original state.
• Do not use the latching lever as a switch.
• The latching lever can be used for 100 operations minimum.
About the Built-in Diode and CR Elements
The diode or CR element that are built into the Relay are designed to
absorb the reverse voltage from the Relay coil. If a large surge in
voltage is applied to the diode or CR element from an external source,
the element will be destroyed.
If there is the possibility of large voltage surges that could be applied
to the elements from an external source, take any necessary surge
absorption measures.
Using Microloads with Infrequent Operation
If any standard MY-series Relays (e.g., MY4) are used infrequently to
switch microloads, the contacts may become unstable and eventually
result in failure contact. In this case, we recommend using the
MY4Z-CBG Series, which has high contact reliability for microloads.
WARNING
Indicates a potentially hazardous situation which, if not
avoided, may result in minor or moderate injury, or may
result in serious injury or death.
Additionally there may be significant property damage.
CAUTION
Indicates a potentially hazardous situation which, if
not avoided, may result in minor or moderate injury
or in property damage.
Precautions for
Correct Use
Supplementary comments on what to do or avoid
doing, to prevent failure to operate, malfunction, or
undesirable effects on product performance.
●
General caution
Indicates the possibility of non-specified general
cautions, warnings, and danger.
●
Electric shock caution
Used to warn of the risk of electric shock under specific
conditions.
●
High temperature caution
Indicates the possibility of injuries by high temperature
under specific conditions.
CAUTION
Precautions for Correct Use
Model
Number
of poles
Operating Coil
ratings
Contact ratings
MY
1
2
3
6 to 220 VAC
6 to 120 VDC
5 A, 200 VAC
4*
6 to 110 VAC
6 to 120 VDC
3 A, 115 VAC