Honeywell 13SX21-H58 Basic Switch: Subminiature Accuracy with Gold Contact Performance
The Honeywell 13SX21-H58 basic switch is a subminiature snap-action switch designed for compact mechanisms that demand reliable low-energy switching. Positioned within the Honeywell MICRO SWITCH SX Series, this model combines a small footprint with a durable switching architecture and premium contact options. For designers seeking a Honeywell 13SX21-H58 basic switch, the most important strengths are usually contact reliability, compact size, and long mechanical life.
Technical Features of the Honeywell 13SX21-H58 Basic Switch
Distributor specifications describe the Honeywell 13SX21-H58 basic switch as an SPDT model rated at 1 A at 125 Vac, using gold alloy contacts and a pin plunger actuator. Listings also identify quick connect termination, 4.83 mm mounting centers, and a maximum operating force range noted around 0.70 N to 1.39 N. Those details are important for engineers working with sensitive signals or control assemblies where stable contact behavior matters as much as mechanical actuation.
The use of gold alloy contacts is especially relevant in applications involving low-level electrical loads. In that environment, a Honeywell 13SX21-H58 basic switch can provide more dependable signal integrity than a standard power-only contact setup.
How It Fits Within the SX Series
Honeywell positions the SX Series as a premium subminiature switch family built for repeatability and extended service life. The series supports multiple actuator, circuitry, and termination options while maintaining a compact housing suited to dense equipment layouts. Honeywell also notes broad industry use, including aerospace, energy, and manufacturing, where dependable switching in limited space is essential.
That makes the Honeywell 13SX21-H58 basic switch a practical option for compact industrial controls, aerospace subassemblies, pressure switch mechanisms, and custom equipment where fast snap-action response is needed in a small package.
Where the Honeywell 13SX21-H58 Basic Switch Performs Well
In real-world applications, this switch can be useful in instrument assemblies, compact electromechanical interfaces, control panels, and feedback points that rely on predictable plunger actuation. The quick connect termination can also simplify assembly or service in systems where field replacement and wiring efficiency matter.
If you are standardizing parts across an installed machine base, more information about Honeywell may help when comparing SX variants with different contact materials, actuator styles, and electrical ratings.
FAQ
What is the main advantage of the Honeywell 13SX21-H58 basic switch?
The main advantage is its balance of compact size and reliable contact performance. The gold alloy contact design makes it especially attractive for low-energy or signal-level switching applications.
Is the Honeywell 13SX21-H58 a good fit for compact equipment?
Yes. It belongs to a subminiature switch family developed for applications where available space is limited but consistent switching performance is still required.
Why do gold contacts matter in a basic switch?
Gold contacts are often preferred in low-current applications because they can support more stable electrical performance where signal quality matters. That can be valuable in instrumentation, control interfaces, and precision assemblies.
What kind of actuator does the Honeywell 13SX21-H58 use?
This model is commonly listed with a pin plunger actuator. That design is useful when the triggering movement is direct, short, and linear.
What should engineers review before choosing this part?
Review the load type, contact material requirement, terminal style, mounting dimensions, actuation force, and environmental conditions. Those details help confirm whether the Honeywell 13SX21-H58 basic switch is the right fit for the application.