Find detailed information about the electrical specifications of MEC switches, including insulation resistance, current ratings, and contact performance. Our switches are designed to meet strict electrical requirements for a wide range of applications.
› Under what operating conditions is this lifetime stated?
The 10.000.000 cycles are under the conditions shown in the technical specifications: 2.0N, 3.5N or 6.5N activation force depending on the switch, maximum 100N for 10 seconds. Load 0.5-50 mA and 24 VDC, ambient temperature -40⁰C to +160⁰C.
› Which of the 4 pins in the non-illuminated Multimec switch are the 2 pins that have the contact-function?
The pins are connected 2 by 2. This means that you can choose what 2 pins you want to make the connection with. Pin 1 is connected to pin 2, and pin 3 is connected to pin 4. The pin numbers can be found on the bottom of the actual switch.
› What are the minimum criteria for the Multimec switch regarding voltage and current?
The minimum current is 0.5mA for switches with silver terminals and 0.5 μA for switches with gold terminals. There are no min. limits for the voltage.
› What is the maximum current that can be interrupted on a Multimec switch?
The maximum current that can be interrupted on a Multimec switch under 24Vac is 50 mA.
› What happens if the switch is exposed to 32V and 100mA?
We have conducted a test where the Multimec was exposed to a constant current and voltage of 100mA and 50V. The initial contact resistance was 17 mΩ. After 2.5 mill operations the contact resistance went up to 85 mΩ.
› What is the thermal electromotive force (emf) for gold plated switches?
For gold plated switches, we recommend the following minimum values: 10mV and 0.5 microAmp above the contact point (meaning where the gold plated metal dome hits the gold plated contact point inside the switch).
› MEC specifies the contact resistance on the switch to be <30 milli Ohm. Will this low contact resistance also be the case after long life testing?
Yes, as long as the maximum resistive load does not exceed 50mA/24VDC.
› What is the insulation resistance?
<10 Mohm (3 Kvolt for 30 seconds).
› Due to our design, we will have to load the switch with 6mA at 24VDC, using silver contacts. Will that cause any problems with the functionality and lifetime?
6 mA will work without any problems, and the lifetime will not be affected.
› Is it possible to apply 80mA at 12VDC (instead of the 50mA at 24VDC stated in the catalog)?
We have tested the Multimec up to 500 mA / 24 VDC. The lifetime will be reduced due to burn marks at the contact points, and the contact resistance will end up at 100mΩ. Be aware that the load must be purely resistive (ohms), with no inductive or capacitive load.
ASK FOR A SAMPLE OR INFO
How to mount MEC hinge-type caps?
