NTS EX

Kiepe pull-rope emergency stop switches type NTS EX are used in accordance with the requirements of EN 620 as well as BGI 710 and in conformity with DIN EN ISO 13850 as emergency stop devices as supplementary safety measures on conveyor belt systems. The pull rope is symmetrically tensioned on both sides of the red release lever. The devices are suitable for outdoor use and applications where the ambient temperature varies considerably. With the pull-rope system functionally aligned, the emergency stop signal can be triggered over a distance of up to 2 x 100 m for each switch. Depending on the switch type, they are suitable for use in potentially explosive atmospheres with conductive dust, equipment group II, categories 2 and 3, in zones 21 and 22 (type NTS EX 2D) or category 3, only in zone 22 (type NTS EX 3D).Kiepe emergency pull-rope switches type NTS EX are compliant with the ATEX Directive 2014/34/EU and Machinery Directive 2006/42/EC.They must only be used in control electrical circuits. The NTS EX glasfibre reinforced thermoplastic housing offers space for up to 3 simultaneously switching NO and NC contacts. Taking into consideration the safety data and maintenance recommendations, the pull-rope emergency stop switch type NTS EX can be used in safety circuits in accordance with DIN EN ISO 13849 up to Performance Level d (PLd).
 

Note:                                                                                                                                                                                                                                                                                                           These pull-rope emergency stop switches may only be used in accordance with their labelling.
 

Pull-rope emergency stop switches of type NTS EX are each fastened to the substructure in installation position with 4 M8 screws, centered between the anchor hook 3 of the pull-rope system (see the mounting diagram). The pull-rope 1 is tensioned by tension springs 2 between the anchor hooks 3 and fastened at the red release lever. After the tension springs 2 have been adjusted, the actuation force and path for triggering the switch must be tested to ensure compliance with specified requirements. Electrical connection is performed with the device open using the ATEX approved cable gland included in the delivery, directly on the screw joints of the switching elements.

  Note:                                                                                                                                                                                                                                                                                                                     The tension springs are designed for cable systems with Kiepe devices at recommended temperature changes in a straight installation. Deviations from this may require a different spring design or an adjusted tension     of the spring for wire break detection.