Microswitch S100u Type Suitable for Contactors Vacuum Circuit Breakers Knife Gate Switches

Rated voltage: DC24VAC220V
Rated current: 2A
Opening capacity: DC24V/2A,T=20ms;AC220V/1.5A,Cosφ=0.4
Applicable temperature range: -40℃~+70℃
Work withstand voltage: 1500V(50Hz)/1min
Mechanical life: 1,000,000 times
Product Overview
S100 series micro switch is a limit switch with self-resilient turning ability, the action speed is determined by the contact itself elasticity, does not rely on external drive speed to determine the opening and closing speed, so it is very practical for slow drive speed device limit and mechanical status detection and other occasions;
The microswitches of the S100 series are equipped with a mechanical forced disconnection operation. Even in the case of a short circuit, the contacts can be forcibly disconnected using an external operating force, for which reason the microswitches create a safe circuit loop;
S100 series micro switch has self-cleaning contact protection device can effectively protect the environment from dust, moisture and pollutants, so that the micro switch has high reliability and sensitivity, even at very low contact load, the reliability is still very high. Ideal for low voltage and current signals in automation control, interlocking, etc.;
S100 series micro switch internal fixed contacts all use copper plated with pure silver, dynamic contacts use more elastic phosphor bronze contact points inlaid with silver alloy contacts, with the advantages of small size, reliable control, strong through-current capacity.
Environmental conditions
1、 Ambient air temperature: -40℃~+70℃;
2. Altitude: not more than 5000 meters;
3. Humidity: the average relative humidity does not exceed 95% in 24h; the average water vapor pressure does not exceed 2.2kPa; the monthly average relative humidity does not exceed 90%; the average water vapor pressure does not exceed 1.8kPa;
4. Vibration acceleration not greater than 15m/s²;
5、The surrounding air is not obviously polluted by dust, smoke, corrosive and combustible gases.

Q1: What is the working principle of the micro switch?
A1: The micro switch is a device that can generate a large current switch under very small operating pressure and is usually used for detection and limit switches. It achieves rapid disconnection and closure through the internal mechanical structure to control the on and off of the circuit.

Q2: What parameters should be noted when purchasing micro witches?
A2: When purchasing micro witches, parameters such as rated voltage, rated current, operating force, travel, contact configuration (such as normally open, normally closed), service life and environmental adaptability should be noted.

Q3: How long is the general service life of a micro switch?
A3: The service life of a micro switch varies depending on the model and usage conditions. Generally, the mechanical life can reach several million times, while the electrical life is relatively shorter, usually ranging from 100,000 to several hundred thousand times.

Q4: What are the common application scenarios of micro switches?

A4: Microswitches are widely used in fields such as household appliances (such as microwave ovens and washing machines), automation equipment, automotive electronics, medical equipment, industrial control systems, etc.

Q5: What are the installation methods of micro switches?
A5: The main installation methods of micro switches include welding, screw fixation, and plug-in installation, etc. Choose the appropriate installation method according to specific application requirements.

Q6: How to select the appropriate model of micro switch?
A:6 When selecting the model of micro switch, factors such as the rated voltage, current, operating force, travel, operating environment, and reliability requirements of the switch should be considered according to the application requirements to ensure that the selection meets the actual operating conditions.

Q7: What types of contact configurations are there for micro switches?

A7: The contact configurations of micro switches mainly include types such as Normally Open (NO), Normally Closed (NC), and changeover (SPDT), etc. Choose the corresponding contact configuration according to different circuit requirements.

Q8: Are micro switches stable when used in high-temperature or low-temperature environments?
A8: The operating temperature range of the micro switches varies depending on different models, generally ranging from -40°C to +85°C. Selecting a micro switch suitable for use in high-temperature or low-temperature environments can ensure its stability.

Q9: Can micro switches be used in damp or corrosive environments?
A9: Some micro switches have waterproof, dustproof and corrosion-resistant designs and are suitable for damp or corrosive environments. When purchasing, it is necessary to confirm the protection level and corrosion resistance of the micro switch.

Q10: What are the contact materials of micro switches and what are the differences?
A10: The common contact materials of micros witches include silver alloy, gold alloy, copper alloy, etc. Silver alloy contacts have good electrical conductivity and wear resistance and are suitable for high-current environments; gold alloy contacts are suitable for low-current and low-voltage environments and have good antioxidant properties; copper alloy contacts are commonly used in general occasions.