Datasheet

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622
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Miniature Basic Switch (Non-Sealed) – SS
CAT. No. B053-E2-11D
Using a model for ordinary loads to open or close the contact of
a miroload circuit may result in faulty contact. Use models that
operate in the following range. However, even when using micro
load models within the operating range shown below, if inrush
current occurs when the contact is opened or closed, it may
increase contact wear and so decrease durability. Therefore,
insert a contact protection circuit where necessary.
The minimum applicable load is the N-level refreence value. This
value indicates the malfunction reference level for the reliability
level of 60% (
λ
60). The equation,
λ
60 = 0.5 x 10-6/operations
indicates that the estimated malfunction rate is less than
1/2,000,000 operations with a reliability level of 60%.
Terminal Connection
When soldering the lead wire to the terminal, first insert the lead
wire conductor through the terminal hole and then conduct
soldering.
Make sure that the capacity of the soldering iron is 60W
maximum. Do not take more than 5s to solder the switch terminal.
Improper soldering involving excessively high temperature or
excessive soldering time may deteriorate the characteristics of
the switch.
Be sure to apply only the minimum required amount of flux. The
switch may have contact failures if flux intrudes into the interior of
the switch.
Use the following lead wires to connect to the solder terminals
If the PCB terminal models are soldered in the solder bath, flux
will permeate inside the Switch and cause contact failure.
Therefore manually solder the PCB terminal.
Wire the quick connect terminals (#110) with receptacles. Insert
the terminals straight into the receptacles. Do not impose
excessive force on the terminal in the horizontal direction,
otherwise the terminal may be deformed or the housing may be
damaged.
Insulation Distance
According to EN61058-1, the minimum thickness of insulation
according to IEC 61058-1 is 1.1mm, and the minimum clearance
between live terminals and mounting plate is 1.6mm. If the proper
insulation for the terminator cannot be obtained, add insulation
such as a Separator or insulation guard on the switch.
Turn OFF the power supply before mounting or removing the
switch, wiring, or performing maintenance or inspection. Failure to
do so may result in electric shock or burning.
Use two M2.3 mounting screws with spring washers to mount the
Switch. Tighten the screws to a torque of 0.23 to 0.26N . m (2.3
to 2,6 kgf . cm)
Mount the switch onto a flat surface. Mounting on an uneven
surface may cause deformation of the switch, resulting in faulty
operation or breakage in the housing.
Operating Stroke Setting
Take particular care in setting the operating stroke for the pin
plunger models. Make sure that the operating stroke is 70% to
100% of the rated OT distance. Do not operate the actuator
exceeding the OT distance,otherwise the durability of the switch
may be shortened.
Using Micro Loads

Mounting

Miniature Basic Switch (Non-Sealed) – SS
Non-Sealed Microswitches
Note: The values indicated in parentheses are reference values for cases when the installation direction is such that the lever weight
is not applied to the plunger
Omron 08 Cat 565-773 5/10/07 15:57 Page 622