Honeywell 111SM602-H4 Basic Switch Technical Guide
The Honeywell 111SM602-H4 basic switch is a subminiature SM Series snap-action switch built for compact systems that still demand robust switching characteristics. This model is especially notable because available technical listings provide a relatively complete picture: SPDT configuration, roller lever actuation, quick-connect plus solder-compatible termination references, and well-defined mechanical travel values. As a result, the Honeywell 111SM602-H4 basic switch is often easier to evaluate in engineering terms than many catalog-only switch variants.
Technical Features of the Honeywell 111SM602-H4 Basic Switch
Distributor data identifies the Honeywell 111SM602-H4 basic switch as an SPDT chassis-mount switch in the SM Series rated at 5 A, 250 V AC, and 30 V DC. It uses a lever with roller actuator, and detailed attribute listings describe quick-connect 0.110 inch termination along with solder-related references in other sources. Additional published values include operating force around 198 gf, release force around 57 gf, operating position about 14.3 mm, pretravel near 5.5 mm, differential travel around 0.6 mm, overtravel approximately 0.76 mm, and operating temperature from -55 °C to 125 °C. Mechanical life is commonly given as 10,000,000 cycles.
Why This Honeywell Basic Switch Is Technically Useful
What makes the Honeywell 111SM602-H4 basic switch particularly useful is the level of travel and force information available for it. In real equipment design, those figures can be just as important as the voltage and current ratings because they determine how the switch will interact with cams, levers, and moving components over time. A part with well-defined actuation behavior is easier to integrate into a controlled mechanism.
Its roller lever format also makes sense in assemblies where the switch is touched repeatedly by moving machine parts. For more about Honeywell, comparing this model with plain lever or solder-only SM variants can be helpful when selecting the best mechanical and installation format for a specific design.
FAQ
What actuator type is used in the Honeywell 111SM602-H4 basic switch?
It is commonly listed with a roller lever actuator. That helps the switch interface more smoothly with moving components such as cams or sliding members in repetitive-use mechanisms.
Why is the Honeywell 111SM602-H4 basic switch easier to specify than some other variants?
Because published sources include detailed operating force and travel values. Those numbers are very useful during design validation, especially when the switch must align precisely with an existing motion path.
Is the Honeywell 111SM602-H4 basic switch intended for compact systems?
Yes. It belongs to the subminiature SM Series, so it is designed for applications where installation space is limited but performance expectations remain high.
What should be checked during replacement or redesign?
Verify the roller path, quick-connect or solder termination needs, force window, and electrical load. Even when the part number is correct, installation details still determine whether the switch performs as intended in the host device.