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Long travel limit switch for Hazardous area

Flameproof position limit switch.
Rugged and reliable, Limitex is designed to control the movement of overhead travelling cranes, hoists and complex machine tools operating in potentially explosive areas.

Overview

MAIN FEATURES
Positive opening NC contacts for safety functions.
1. Mechanical life of switches: 1 million operations.
2. Operation frequency: 3600 operations/hour max.
3. Protection degree: IP66.
4. Ambient temperature range: -40°C to +60°C.
5. It features rugged external enclosure made of G20 cast iron and cross rod support made of zinc alloy. Internal components are made of materials which guarantee long mechanical life and continuous performance.
6. Full Body Stainless Steel Version Available.

GENERAL SAFETY SPECIFICATIONS
Maximum power supply 250 Vac
Maximum current intensity 3 A
Maximum dissipated power Rated frequency 2 Watt 50 / 60 Hz

GENERAL TECHNICAL SPECIFICATIONS
Operation frequency 3600 operations/hour max
Cable entry Nr. 1 M20x1,5 - Nr. 1 M25x1,5 - Nr. 1 ½ NPT (cable glands not supplied)

OPTIONS
1. 2 or 4 snap action switches with 1NO+1NC change-over contacts.
2. Cross rods move to 3 or 4 maintained positions, with movement every 90°.
3. Modular adapter with fixing points.

LIMITEX WITH 4 CONTACTS
Rated operational current 16 A at 250 Vac
Rated operational voltage 500 Vac
Rated thermal current 10 A
Rated insulation voltage 300 Vac
Mechanical life 10x106 operations
Connections Screw-type terminals
Wires 1x2.5 mm2 , 2x1.5 mm2
Microswitch type Snap actions
Contacts 4 Microswitches 1NO+1NC
Scheme


OPERATION ANGLES
0 - Reset position
A - Microswitch working angle: 65°
1 - Maximum left handed operation: 90°
2 - Maximum right handed operation: 90°
The end of round of the “cross bar” limit switches have no limit stop (i.e. they can rotate around 360°).


OVERALL DIMENSIONS (mm)

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0086-371-5532 8269
Ext. 1039

+86 13523501202