Plastic Body Safety Switches with Solenoid and Separate Actuator

Main Data

  • Polymer housing, three conduit entries
  • Protection degree IP66
  • 6 contact blocks available
  • 6 stainless steel actuators available
  • Three supply voltages available
  • Versions with auxiliary release device or auxiliary lock release device
  • Versions with energized or de-energized solenoid

Description

These switches are used on machines where the hazardous conditions remain for a while, even after the machine has been switched off, for example because of mechanical inertia of pulleys, saw disks, parts under pressure or with high temperatures. They can also be used when it is necessary to control machine guards, allowing the opening of protections only under specific conditions.

Working conditions

The working principle of these safety switches allows three different working states:
state A : with the actuator inserted and blocked by the solenoid
state B : with the actuator inserted but not blocked
state C : with the actuator extracted
All or some of these states may be controlled through the positive opening contacts of the internal contact block.

Rotating head and release device

The head can be quickly rotated on each of the 4 sides of the switch by unfastening the two fixing screws. The mechanical lock release device can be rotated in 90° steps as well. This enables the switch to assume 32 different configurations.

Actuator regulation zone

This switch has a wide backlash of the actuator into the head (4.5 mm) to avoid that door gaskets keep in traction the actuator on the solenoid. With closed door, check that the actuator doesn’t knock straight against the head of the switch; it must be in the adjustment zone (0.5…5 mm)

Limits of utilization

Do not use where dust and dirt may penetrate in any way into the head and deposit there, in particular where metal dust, concrete or chemicals are spread. Do not use where explosive or in flammable gas is present.

Actuator holding force

The strong interlocking system guarantees a maximum actuator holding force of 1000 N.

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