Datasheet

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Technical data
Actuator with low level switching element
Switching system
This low level switching element was designed for switching low
powers in electronic circuits. The mechanism assures reliable
switching of loads ranging from a few μA/μV up to 100 mA/
42 VAC/DC.
Single-break momentary contact, as normally open or normally
closed with 4 independent points of contact. 2 momentary
contacts per switching element; combination of normally open
and normally closed is possible.
Special features are the long life, extremely short rebound time
and stable contact resistance.
Material
Material of contact
Gold plated
Switch housing
Polysulfone, heat-resistant and self-extinguishing
Actuator housing
Polyetherimide, self-extinguishing
Mechanical characteristics
Terminals
The universal terminals permit these units to be mounted on
printed circuit boards (PCB). These terminals can also be used as
soldering or plug-in terminals.
For these terminals we can also supply a plug-in base which, when
soldered on to the board, enables the switch to be plugged in.
Soldering terminal:
Max. wire diameter 2 wires à 0.8 mm
Max. wire cross-section of stranded cable 1x 0.75 mm²
Plug-in terminal 2.0 x 0.5 mm
Tightening torque
for fixing nut max. 50 Ncm
Actuating torque
2.5 Ncm … 5.5 Ncm, measured at the key or lever of the keylock-
or selector switch
Actuating force
3 N … 3.5 N
Actuating travel
Illuminated pushbutton 3 mm
Keylock-/selector switch actuator 2 positions:
1 x ca. 42° deflection momentary action
1 x ca. 90° deflection maintained action
Rebound time
Typ. < 100 μs
Mechanical lifetime
Momentary action 5 million cycles of operation
Maintained action 1 million cycles of operation
Keylock switch 50 000 cycles of operation
Electrical characteristics
Contact resistance
Starting value (initial) ≤ 50 mΩ
Electrostatic breakdown value
≤ 15 KV (Keylock switch)
Switch rating
10 μA, 100 μV to 100 mA at 42 VAC/VDC
Electric strength
2500 VAC, 50 Hz, 1 min. between all terminals and earth,
as per IEC 60512-2-11
Environmental conditions
Storage temperature
-40 °C … +85 °C
Service temperature
-25 °C … +55 °C
For indicators and illuminated pushbuttons mounted as a block,
make sure the heat can escape freely.
Protection degree
IP 65 front side, as per IEC 60529
Shock resistance
(Single impacts, semi-sinusoidal)
15 g for 11 ms, as per IEC 60512-4-3, IEC 60068-2-27
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