31-940 EAO, 31-940 Datasheet - Page 15

• Manufacturer Part Number: 31-940
• Description: Terminal Block
• Manufacturer: EAO
• Series: 31r

Specifications of 31-940

• For Use With: EAO Switch 31 Series Low Level Switches
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Technical Data
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Switching system
Material
Mechanical characteristics
Electrical characteristics
Actuator with low level switching element
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.
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/
Material of contact
Gold plated
Switch housing
Polysulfone, heat-resistant and self-extinguishing
Actuator housing
Polyetherimide, self-extinguishing
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
Actuating force
3 N ... 3,5 N
Actuating travel
3 mm
Rebound time
Typ. <100 μs
Mechanical lifetime
Momentary action 5 million cycles of operation
Maintained action 1 million cycles of operation
Standards
EN 61058
Contact resistance
Starting value (initial) ≤50 mΩ
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
Protection class
II
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
Front as per:
IP 40
IP 65 with spray cover
Shock resistance
(Single impacts, semi-sinusoidal)
15 g for 11 ms, as per IEC 60512-4-3, IEC 60068-2-27
Vibration resistance
(sinusoidal)
10 g at 0-2000 Hz, amplitude 1.5 mm, as per IEC 60512-4-4, IEC
60068-2-6
Climate resistance
Standard condition, as per IEC 60068-2-3 and 2-30
Changing condition, as per IEC 60068-2-14 and 2-33
06.2009
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