Norstat, Inc.

These switches are used on machines where the hazardous conditions remain for a while, even after the machines have 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. The mode 1 (active safety outputs with closed and locked guard) versions are considered interlocks with locking in accordance with ISO 14119, and the product is marked on the side with the symbol shown.

• Standard earth position:12 hours
• Maximum conductor size:1.5 mm2

Pizzato Elettrica widens the own range of products making a new series of safety switches hinge-shaped named Palladio, where safety and style are melted in one single product. The switch is completely integrated in the mechanical hinge, to result practically invisible to an inexpert eye. This guarantees a higher safety because a switch hard to identify is consequently also more difficult to defeat. The assembly without visible screws and the pleasant line, make the switch perfectly integrated also with guards of modern design machinery.

The Control requires at least a synchronous action by both hands to release and maintain the operation of a machine or machine elements as long as there are dangerous situations, assuring in this way only the protection of this operator. Description PCB3® Smelted-aluminum cover-part with a protection lid over each pushbutton. Available with reserved holes for additional pushbuttons of Ø22.5 mm. Delivered with an Ø20 mm ergonomic head tube made of polished stainless steel to facilitate the operation of the buttons from different positions. Bottom base cast aluminum with central opening of 200×90 mm for cables entries. Prepared to be mounted directly on adjustable metal foot PRB05. 2 mm thickness rubber sealing between base and cover to protect the terminals against dust, oil and water. IP65 protection with supplied pushbuttons. Weight: 5Kg.

The installation is faster because only one screw is used for the fastening of every rope extremity, and the parts are prepared to ease the installation. Some practical tests have pointed out that the installation time is halved, reason for which it is named FAST. The system is aesthetically pleasant, because thread parts (which sometimes tear operators’ dresses) and the rope extremities, usually fixed by heat-shrinkable sheath or adhesive tape, have been hidden. The red plastic covers of the fixing parts have been developed also for the function of controlling the rope clamping. If the rope fastening screw is not fixed tightly enough, the cover cannot pass. The rope is fixed without folds, thus reducing the rope stabilization time and the possible recalibrations of the rope tightening. The system has been tested for correct function only if used with steel ropes of high quality like the ones Pizzato Elettrica usually supplies.

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.