Linemaster Momentary foot switch, Airhorn switch - Linemaster-491-S

The Linemaster 491-S is a high-quality, compact momentary foot switch designed for durability and ease of use in professional environments. Engineered with a robust black-painted steel housing and a non-skid base pad, it provides reliable, long-lasting performance for demanding applications. It is widely utilized in emergency vehicles—commonly as an airhorn switch—as well as in medical, dental, and industrial assembly systems. This versatile, American-made switch features a compact, lightweight design that is easy to maneuver, making it a preferred choice for operators requiring precision and reliability in a small footprint.

Features & Technical Specifications

• SKU/MPN: 491-S
• Switch Type: Single-stage momentary, SPDT (Single Pole Double Throw)
• Electrical Rating: 10A, 125-250 VAC; 1/2 HP, 125-250 VAC
• Construction: Formed steel housing, painted black
• Enclosure Rating: NEMA Type 1, UL/CSA Enclosure Type 1, IP20
• Connection: Solder terminal with internal adjustable strain relief
• Mounting: Two mounting holes for rigid floor or equipment attachment
• Application Compatibility: Ideal for emergency vehicles, medical equipment, and light-duty industrial machinery