Explosion proof rotary limit switches

Features

• It consists of a gear motor that transfers movement through a primary input reduction stage (worm gear and helical toothed gear) and one or more secondary output stages (pairs of straight toothed gears).
• Accurate adjustment of cams by means of screws.
• Positive opening NC contacts for safety functions.
• Mechanical life of switches: 1 million operations.
• IP protection degree: Limitex AG is classified IP 65 / IP 66.
• Extreme temperature resistance: -50°C to +60°C.
• It features rugged external enclosure made of G20 cast iron, stainless steel transmission and gear driving shafts, self-lubricating technopolymer gears and driving bushes.
• All materials and components used are wear resistant and guarantee protection of the unit against water and dust.

Options

• Revolution ratios from 1:15 to 1:499, achieved by combining different secondary output stages.
• Snap action switches with 1NO+1NC change-over contacts.
• It can be equipped with a cam set with 2-3-4 switches.
• Available with flange for direct coupling to the motor.
• Available with direct control switches to enable direct action on the motor.

Certifications

• CE marking.
• Atex certification EN 60079-0:2009, EN 60079-1:2007, EN 60079-31:2009.
• Conformity to Standards IECEx IEC 60079-0:2011, IEC 60079-1:2007-04 and IEC 60079-31:2008.

Manufactured by COEL Motori srl – Distributed by TER Tecno Elettrica Ravasi srl a socio unico.

GENERAL TECHNICAL SPECIFICATIONS

GENERAL SAFETY SPECIFICATIONS

TECHNICAL SPECIFICATIONS OF THE SWITCHES