Honeywell 11SM1-H58 Basic Switch Overview
The Honeywell 11SM1-H58 basic switch is a premium subminiature electromechanical switch developed for precise on/off control in compact systems. As part of the Honeywell SM Series, the Honeywell 11SM1-H58 basic switch is known for dependable snap-action behavior, strong electrical performance, and repeatable actuation. Common search queries include Honeywell 11SM1-H58 basic switch, Honeywell 11SM1-H58 micro switch, and Honeywell 11SM1-H58 SPDT switch, especially among engineers working on maintenance, component matching, or design validation.
Technical Features of the Honeywell 11SM1-H58 Basic Switch
The Honeywell 11SM1-H58 basic switch uses an SPDT contact arrangement with a round pin plunger actuator. It is rated for 5 A at 250 V AC and 30 V DC, which places it in the power-duty category for many compact switching applications. This variant is especially defined by its quick connect 0.058 in round termination, making it useful in systems where secure but serviceable wire connections are preferred.
Mechanically, the switch delivers an operating force of 141 gf and a release force of 28 gf. It also includes a pretravel of 0.020 in (0.5 mm), differential travel of 0.004 in (0.1 mm), overtravel of 0.005 in (0.13 mm), and an operating position of 0.330 in (8.4 mm). These characteristics are valuable in applications where accurate switch timing and consistent mechanical feedback are important.
Where the Honeywell 11SM1-H58 Basic Switch Is Used
The Honeywell 11SM1-H58 micro switch is suitable for control panels, compact industrial mechanisms, instrumentation systems, appliance subassemblies, and equipment that needs reliable switching in a tight space. Its 10,000,000-cycle mechanical life supports frequent actuation over long service intervals, while the -55°C to 125°C operating temperature range makes it relevant for systems exposed to environmental variation.
Because of the quick-connect terminal format, the 11SM1-H58 SPDT switch can also be attractive in maintenance-oriented equipment where replacement speed and wiring accessibility matter. In many field-service situations, termination style is just as important as electrical rating.
For more information about Honeywell, it is useful to compare this variant with other SM Series terminal options.
FAQ
What is the main advantage of the Honeywell 11SM1-H58 basic switch?
Its main advantage is the combination of compact size, 5 A switching capacity, and 0.058 in round quick-connect terminals. That makes it practical for designs that need both robust switching and easier wire termination.
Is the 11SM1-H58 micro switch good for replacement applications?
Yes. It is often used in service and replacement work because terminal format, actuator type, and operating characteristics can be matched more precisely than with generic alternatives. That helps reduce fit and performance issues during maintenance.
Why do engineers search for the 11SM1-H58 SPDT switch specifically?
They usually need to verify exact actuator style, current rating, and terminal geometry before purchasing or specifying a replacement. In precision equipment, even small differences in travel or connection style can affect compatibility.
Can the Honeywell 11SM1-H58 basic switch handle repetitive operation?
Yes. With a rated mechanical life of up to 10 million cycles, it is well suited for repetitive switching tasks in systems that demand long-term durability and predictable snap-action performance.

