EUS-704.02-1070 EAO, EUS-704.02-1070 Datasheet - Page 106

• Manufacturer Part Number: EUS-704.02-1070
• Description: Switch Actuator
• Manufacturer: EAO
• Series: 04r

Specifications of EUS-704.02-1070

• Mounting Hole Dia: 22.5mm
• Contact Voltage Ac Max: 600V
• Actuator Diameter: 30mm
• Switch Operation: (ON)
• Contact Current Ac Max: 10A
• For Use With: 04 Series Non-Illuminated Pushbutton Switches
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Glossary
This glossary contains short explanations of terms used in this catalog.
Definitions are given for these terms and, for some, regulations relating
to them.
Actuating force
Force (N) exerted on an Operation part that is necessary for the execution of the
required activation
Actuating torque
Torque (Nm) exerted on an Operation part that is necessary for the execution of
the required activation
Actuating travel
Path travelled by Operation part in mm
Actuation Point
Position of actuator at which contact operation occurs
Actuator
The part of a switch assembly used by the operator that causes
switch contacts to engage or disengage. Actuators include pushbuttons, levers,
slides, keylocks, toggles, emergency stop caps, etc.
Alternations
DIN EN 61058 T. 1 (VDE 0630 T. 1 ) para. 3.4.8 => Consequence of the changing of
one switch position into another and back into the first, via all other switch
positions, if such switch positions are present
Ambient temperature, enclosed
Temperature (°C) at which a switchgear in a closed housing can be operated.
The power loss of the Switchgear (filament lamp operation also) has to be taken
into consideration as it can lead to heating up in the interior of the housing.
Ambient temperature, open
Temperature (°C) of the space in which the Switchgear is being operated.
Application class (climatic)
Specification in code letters for the climatic stress (DIN 40040)
Arcing
A discharge of electricity (a spark) that can occur when contacts are opened or
closed. Arcing can degrade or burn contacts, reducing useful life
AWG
Abbreviation for American wire gauge, a system of indicating wire sizes and
dimensions
Behind Panel Depth
Distance from the rear surface of a panel to the far end of the switch mounted
on the panel
Bifurcated Contacts
Two part contacts for longer life and higher reliability
Blind plug
For covering unused mounting holes
Bounce
Rebounding of contacts as they come together. Can prolong arcing or may
open and close rapidly before stabilizing
Break
Interruption of a circuit. Double-break occurs when two contacts are opened
simultaneously
Break-Before-Make
When moving contacts interrupt one circuit before completing another. Also
called non-shorting
Breakdown Voltage
The voltage at which an insulating material fails electrically
Break-make contact
Contact made of a combination of NO (Normally Open) and NC (Normally
Closed) contacts, with 3 Connections (Changeover switch contact)
Butt Contacts
One movable and one fixed contact which lay against each other when closing
a circuit. Used in slow-make/break A.C. switching applications
www.eaoswitch.com
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EAO Switch Condensed Catalog 100
Buzzer
Acoustic buzzer, piezo technology
Buzzer element
Acoustic indicator (Swisstac)
CE designation
The CE designation used on a product declares that it complies with the
relevant fundamental requirements of all applicable guidelines of the EU and that
the stipulated conformity evaluation procedure has been executed
Chatter
Rapid opening and closing of contacts, usually exhibited during extreme
vibration and/or shock. (See also Bounce)
Clearance
IEC 947-1 para. 2.5. 1 9, DIN EN 61058 T. 1 (VDE 0630 T. 1 ) para. 3. 1 .7 => Shortest
distance (mm) through the air between two electrically conducting parts or
between an electrically conducting part and a metal foil on the touchable
surface made of insulating material
Climatic resistance
Specifies the permissible temperature range and relative humidity of the switchgear
Connection, connection method (functional designation)
Electrical connection to the external circuit i.e:. Soldering/Plug-in terminal,
Screw terminal
Contact (of mechanical switchgear)
Conductive part that opens or closes a circuit by being activated
Contact connection (technical component designation)
Designation of the Connection method i.e:. Screw terminal
Contact Gap
Open distance between contacts
Contact resistance
Resistance value which arises in a switchgear between the Contact parts of the
circuit being switched
Contacts
A pair of devices that touch or come apart at the point where the switch throw
makes or breaks the circuit. Silver contacts are common because of their low
conductivity and low electrical resistance. Gold contacts are used for low level
(signal level) switching (100mA/42V)
Conventional thermal current lth
IEC 947-1 para. 4.3.2. 1 => Highest current (A) that a Switchgear can conduct for
at least 8 hours without thermal overload, generally corresponds to the
maximum Rated higher current
CSA
Abbreviation for Canadian Standards Association, a Canadian rating organization
Current consumption
Current, expressed in mA, which flows in an illumination device subject to
electric tension
Current max.
Usually refers to the current handling capability or rating of a switch
Cycle of operation
Consequence of the changing of one switch position into another and back into
the first, via all other switch positions, if such switch positions are present
Degree of pollution
IEC 947-1 para. 5.5.58 / 6. 1 .3.2 => Reference number for the expected quantity of
conductive dirt and air humidity which can lead to the reduction of the electric
strength of a switchgear.The degree of pollution is described in 4 different grades
Detent, Tactile point
Feature that indicates actuation point has been reached. Also referred to as
tactile feel because of construction element in a switch which provides a tactile
response to the activation
Dielectric Strength
DIN EN 61058 T. 1 (VDE 0630 T. 1 ) para. 15. 1 => Resistance (kOhm, MOhm)
between the different poles of a switch (base insulation) and between all parts