Pollak 21-481 Precision Ball Switch – Normally Open (NO), Button / Turret Terminals

Heavy-Duty Precision for Critical Vehicle Systems

The Pollak 21-481 Precision Ball Switch is an industry-standard solution for heavy-duty vehicle sensing. Engineered for accuracy and long-term reliability, this "Normally Open" (NO) switch is designed to activate upon physical engagement of the ball plunger. It is a preferred choice for professional fleet maintenance and industrial equipment repair where high-cycle life is non-negotiable.

Reliable Connectivity with Button Terminals Featuring exposed turret (button) terminals, the 21-481 is designed for secure, low-resistance connections. It is specifically engineered to mate with the PE 02973407 connector, ensuring a perfect fit and reducing installation time for technicians.

Built for the Long Haul From back-up lamp switching to neutral sensing and PTO interlock, this switch is built to survive the road. With an electrical life of up to 500,000 cycles and a mechanical life reaching 1,000,000 cycles, the 21-481 minimizes downtime and replacement costs. It operates flawlessly in extreme temperatures ranging from -40°F to +250°F, making it suitable for engine and transmission environments.

Technical Specifications:

• Circuitry: Normally Open (NO)

• Termination: Exposed Button / Turret Terminals

• Compatibility: Fits Mating Connector PE 02973407

• Thread Size: 9/16-18

• Hex Size: 7/8"

• Voltage Rating: 5.0 - 24.0 VDC

• Current Rating: 0.01 - 5.0 DC Amp

• Operating Temperature: -40°F to +250°F (-40°C to +121°C)

• Cycle Life: 500,000 Electrical / 1,000,000 Mechanical