Pollak 21-560 Precision Ball Switch with Plunger Cap – Normally Open (NO), Sealed Terminals (Fits MP 15300027)

Heavy-Duty Precision with Enhanced Plunger Protection

The Pollak 21-560 Precision Ball Switch is an elite-tier sensing component designed for the most demanding environments in the trucking, construction, and agricultural industries. This Normally Open (NO) switch is engineered to provide precise electrical engagement upon contact, ensuring that your vehicle's critical systems—from neutral sensing to backup lamps—function with factory-standard accuracy.

Advanced Protection for Long-Life Reliability What sets the 21-560 apart is the integrated protective plunger cap. This feature shields the ball mechanism from debris, grit, and mechanical wear, significantly extending the life of the switch in high-exposure areas. To further ensure durability, the switch is equipped with sealed terminals that mate perfectly with the Metri-Pack (MP 15300027) connector, creating a watertight and corrosion-proof electrical interface.

Pollak Tough Engineering Constructed with a rugged zinc-plated body and an encapsulated design, the 21-560 is built to withstand extreme vibrations and temperatures ranging from -40°F to +250°F. With a mechanical life of 1,000,000 cycles, it is the "set it and forget it" solution for fleet managers and operators who cannot afford unnecessary downtime.

Key Specifications:

• Circuitry: Normally Open (NO)

• Special Feature: Integrated Protective Plunger Cap

• Termination: Sealed Terminals (Mates with MP 15300027)

• Connector Series: Metri-Pack

• Thread Size: 9/16-18

• Hex Size: 7/8"

• Voltage Rating: 5.0 - 24.0 VDC

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

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

• Sealing: Includes O-ring for a leak-proof fit.