Schmersal
336 Series Position Switch with Safety Function

Key Features

  • “Positive-Break” NC contacts … won’t stick or weld shut.
  • Watertight design … meets IP67 washdown requirements.
  • Rugged, corrosion-resistant housing … tolerates hostile environments.
  • Six popular actuator styles … for application versatility.
  • Four 90° actuator mounting positions … provide installation flexibility.
  • Slow or snap-action operation … choose to best satisfy application requirements.
  • Safety-system approved … models with positive-break contacts approved for use in machine guarding applications.
  • Designed to meet the Performance Level requirements of EN ISO 13849-1 and Safety Control Categories of EN 954-1.

Part Numbers

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The Z/T336 Series limit switches are designed for use with movable machine guards/access gates which must be closed for operator safety … and for any other presence/position sensing application normally addressed with conventional limit switches. Their positive-opening NC contacts provide a higher level of safety and/or reliability than conventional spring-driven switches whose contacts can weld or stick shut.

Each is available with a choice of six standard actuators … rounded plunger, roller plunger, roller rocking lever, rod rocking lever, adjustable roller rocking lever and one-way roller lever … mountable in any one of four 90° positions. All rocking levers are positively-locked to the shaft, and are adjustable throughout 360° in 10° increments.

Units are available with a choice of slow-action or snap-action contacts.

Their rugged fiberglass-reinforced thermoplastic housing and IP67 rating make them ideal alternatives to conventional limit switches.

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