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1HS3 is a sealed snap-action basic switch from Honeywell (MICRO SWITCH™ series), designed for reliable position detection and harsh environment operation. It offers high durability, precise actuation, and long electrical/mechanical life in compact form factors.
This page is written for product identification and engineering selection guidance. Always verify final limits using the manufacturer's latest datasheet revision for design sign-off.
1HS3 belongs to Honeywell's MICRO SWITCH™ sealed basic switch family, engineered for industrial and electromechanical applications requiring precise switching under demanding conditions.
The device features a snap-action mechanism that ensures fast switching response and consistent contact performance. Its sealed construction enhances resistance to dust, moisture, and contaminants, making it suitable for long-term use in industrial automation and equipment control systems.
Snap-action mechanism ensures fast and repeatable switching performance.
Provides protection against dust, moisture, and contaminants.
Designed for millions of operations in industrial environments.
Subminiature form factor suitable for space-constrained designs.
Single-pole double-throw (SPDT) configuration typical.
Supports low to moderate current switching (application dependent).
Designed for environmental resistance (sealed housing).
Suitable for industrial temperature and mechanical environments.
The 1HS3 is provided in a subminiature sealed mechanical switch housing, featuring mounting holes and terminal connections for easy integration into electromechanical systems.
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Refer to official mechanical drawings for exact dimensions.
The 1HS3 uses standard switch terminals for electrical connection.
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| Device Type | Snap-Action Basic Switch |
|---|---|
| Contact Type | SPDT |
| Actuation | Mechanical |
| Sealing | Sealed housing |
| Mounting Type | Panel / Chassis Mount |
| Mechanical Life | High cycle life (millions of operations) |
| Operating Temperature | Industrial range (application dependent) |
| Series | Honeywell MICRO SWITCH |
Common alternatives to 1HS3 include:
Engineering note: Confirm actuator type, mounting dimensions, and electrical ratings when selecting replacements.
Honeywell is a global leader in industrial control, sensing, and switching technologies, with the MICRO SWITCH™ brand known for high-reliability electromechanical components.
The 1HS3 is commonly used in mechanical sensing and control systems:
Position detection and limit switching in machinery.
Reliable switching in automated production lines.
Used in control and safety switching functions.
Switching input signals for system control logic.
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